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Intel D845GEBV2

1. AB C D F G TL 7 E H DD EE o gi CC i BB 1 O o AA r J Z K FL y X E q W VUTS R Q P O N M OM15117 Audio codec P IDE connectors Front panel audio connector Q Speaker Auxiliary line in connector R Battery Intel 82540EM Gigabit Ethernet LAN Controller S SCSI LED connector Rear chassis fan connector T Chassis intrusion connector ATAPI CD ROM connector U Front chassis fan connector Back panel connectors V BIOS Setup configuration jumper block 12V power connector ATX12V W Auxiliary front panel power LED connector mPGA478 processor socket X 4 Mbit Firmware Hub FWH Processor fan connector Y Front panel connector Intel 82845GE GMCH Z Intel 82801DB I O Controller Hub CHA DIMM sockets AA Front panel USB connector IO Controller BB AGP connector Power connector CC PCI bus add in card connectors Diskette drive connector DD CNR connector optional Figure 3 Desktop Board D845GERG2 Components with Gigabit Ethernet LAN option Product Description 1 2 4 Block Diagrams Figure 4 is a block diagram of the major functional areas of the Desktop Boards D845GEBV2 and D845GERG2 See Figure 7 on page 33 for USB port routing
2. OM13581 Item Description Reference Designator A Front panel audio connector jumper block J8A1 B BIOS Setup configuration jumper block J9H2 Figure 18 Location of the Jumper Blocks 2 9 1 Front Panel Audio Connector Jumper Block This connector has two functions e With jumpers installed the audio line out signals are routed to the back panel audio line out connector e With jumpers removed the connector provides audio line out and mic in signals for front panel audio connectors 72 Technical Reference Table 40 describes the two configurations of this connector jumper block A CAUTION Do not place jumpers on this block in any configuration other than the one described in Table 40 Other jumper configurations are not supported and could damage the Desktop Board Table 40 Front Panel Audio Connector Jumper Block Jumper Setting Configuration ER 1 and 3 Audio line out signals are routed to the back panel audio line out 3 and 4 connector The back panel audio line out connector is shown in Figure 12 EE ER 5 and6 on page 60 7 r5 s ER jk 9 and 10 Audio line out and mic in signals are available for front panel audio l S s 2 No jumpers connectors Table 25 on page 64 lists the names of the signals available 3 installed on this connector when no jumpers a
3. connector or socket Back Panel gt Front Panel USB Ports USB Serial Ports _ LPC Bus lt Parallel Port Primary UDMA 33 and UO Secondary IDE ATA 66 100 Controller hove Mouse PS 2 Keyboard mPGA478 System Bus Diskette Drive Processor Socket 400 533 MHz Connector LPC Bus Vv AGP Interface 1 ps SC ren Intel 82801DB 4 Mbit raphe an lt gt WO Controller Hub ap Firmware Hub Memory Controller Bus ICH4 FWH 4X AGP Hub GMCH ICH4 FWH Connector 1 5 V onl A A A A A p y Intel 845GE Chipset VGA Display Port Interface Hardware SMBus gt Management Memory Bus ASIC 4 DIMM Banks 2 lt SMBus CSMA CD Unit Interface PCI Bus e CNR AC Link _ gt _ Connector Optional SMBus gt PCI Slot 1 PCI Silo a SMBus nein cis Line Out PCI Slot 3 AD1981B Audio Codec s Micii Auxiliary Line In Intel 82540EM CD ROM LAN Gigabit PCI Bus Connector Ethernet LAN lt SMBus Controller OM15119 Figure 5 Block Diagram of the Desktop Board D845GEBV2 with the Gigabit Ethernet LAN option 18 Product Description 1 3 Online Support To find information about Visit this World Wide Web site Intel Desktop Boards D845GEBV2 and http www intel com design motherbd D845GERG2 under Desktop Board Products
4. connector or socket Back Panel gt Front Panel USB Ports USB Serial Ports LPC Bus Parallel Portt Primary UDMA 33 and UO Secondary IDE ATA 66 100 GE E Z r PS2 Mouse PS 2 Keyboard Diskette Drive mPGA478 System Bus Processor Socket 400 533 MHz E LPC Bus y A A A A AGP Interface P pa EC ren Intel 82801DB 4 Mbit rapes all lt gt UO Controller Hub 4 7 Firmware Hub Memory Controller Bus ICH4 FWH 4X AGP Hub GMCH ICH4 FWH Connector 1 5 V onl A A A A A A 8 y Intel 845GE Chipset VGA Display Physical Port Interface Layer rie Q Menace e A OC wk Connector Optional Optional Memory Bus E DIMM Banks 2 lt 4 SMBus e CSMA CD Unit Interface PCI Bus CNR AC Link ___ Connector Optional e SMBus PCI Slot 1 PCISlot2 lt SMBus Bee Ger Line Out _ ot Ue eve ee el i p DIB la Mic In r Audio Codec PCI Slot 4 Auxiliary Line In PCI Slot 5 D845GEBV2 Hardware CD ROM Only Management PCI Soe ASIC a E E E J OM14831 Figure 4 Block Diagram 17 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification Figure 5 is a block diagram of the major functional areas of the Desktop Board D845GEBV2 with the Gigabit Ethernet LAN option See Figure 7 on page 33 for USB port routing
5. These devices events can wake up the computer from this state CNR S1 S3 S4 S5 LAN S1 S3 S4 S5 Note Modem back panel Serial Port A S1 S3 PME signal S1 3 S4 S5 Note Power switch S1 S3 S4 S5 PS 2 devices S1 S3 RTC alarm S1 S3 S4 S5 USB S1 S3 Note For LAN and PME signal S5 is disabled by default in the BIOS Setup program Setting this option to Power On will enable a wake up event from LAN in the S5 state NOTE The use of these wake up events from an ACPI state requires an operating system that provides full ACPI support In addition software drivers and peripherals must fully support ACPI wake events 1 14 2 Hardware Support A CAUTION Ensure that the power supply provides adequate 5 V standby current if LAN wake capabilities and Instantly Available PC technology features are used Failure to do so can damage the power supply The total amount of standby current required depends on the wake devices supported and manufacturing options Refer to Section 2 11 3 on page 79 for additional information The Desktop Boards D845GEBV2 and D845GERG2 provide several power management hardware features including e Power connector e Fan connectors e LAN wake capabilities e Instantly Available PC technology e Resume on Ring e Wake from USB e Wake from PS 2 keyboard e PME signal wake up support LAN wake capabilities and Instantly Available PC technology requ
6. Feature Options Description Plug amp Play O S e No default Specifies if manual configuration is desired e Yes No lets the BIOS configure all devices This setting is appropriate when using a Plug and Play operating system Yes lets the operating system configure Plug and Play devices not required to boot the system This option is available for use during lab testing Numlock e Off Specifies the power on state of the Numlock feature on the e On default Umeric keypad of the keyboard 100 BIOS Setup Program 4 4 3 Peripheral Configuration Submenu To access this submenu select Advanced on the menu bar and then Peripheral Configuration Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration Fan Control Configuration The submenu represented in Table 58 is used for configuring computer peripherals Table 58 Peripheral Configuration Submenu Feature Options Description Serial Port A e Disabled Configures serial port A e Enabled Auto assigns the first free COM port normally COM1 the e Auto default address 3F8h and the interrupt IRQ4 An asterisk displayed next to an address indicates a conflict with another device Base I O address e 3F8 default S
7. Technical Reference 2 11 5 Power Supply Considerations A CAUTION The 5 V standby line for the power supply must be capable of providing adequate 5 V standby current Failure to do so can damage the power supply The total amount of standby current required depends on the wake devices supported and manufacturing options Refer to Section 2 11 3 on page 78 for additional information System integrators should refer to the power usage values listed in Table 42 when selecting a power supply for use with the Desktop Board D845GEBV2 or D845GERG2 Measurements account only for current sourced by the Desktop Board D845GEB V2 or D845GERG2 while running in idle modes of the started operating systems Additional power required will depend on configurations chosen by the integrator The power supply must comply with the following recommendations found in the indicated sections of the ATX form factor specification e The potential relation between 3 3 VDC and 5 VDC power rails Section 4 2 e The current capability of the 5 VSB line Section 4 2 1 2 e All timing parameters Section 4 2 1 3 e All voltage tolerances Section 4 2 2 For information about _Refer to The ATX form factor specification Section 1 5 page 20 2 12 Thermal Considerations A CAUTION The use of an Intel Pentium 4 processor operating above 2 80 GHz with this Intel desktop board requires the following e A chassis with appropriate airflow to ensure proper cool
8. Device States Targeted System Power Note 1 GO working SO working CO working DO working Full power gt 30 W state state G1 sleeping S1 Processor C1 stop D1 D2 D3 5 W lt power lt 52 5 W state stopped grant device specification specific G1 sleeping S3 Suspend to No power state RAM Context saved to RAM G1 sleeping S4 Suspend to No power state disk Context saved to disk D3 no power except for wake up logic D3 no power except for wake up logic Power lt 5 W Note 2 Power lt 5 W Note 2 G2 S5 S5 Soft off No power D3 no power Power lt 5 W Note 2 Context not saved except for Cold boot is wake up logic required G3 No power to the No power D3 no power for No power to the system mechanical off system wake up logic Service can be performed AC power is except when safely disconnected provided by from the battery or external computer source Notes 1 Total system power is dependent on the system configuration including add in boards and peripherals powered by the system chassis power supply 2 Dependent on the standby power consumption of wake up devices used in the system Product Description 1 14 1 2 Wake up Devices and Events Table 16 lists the devices or specific events that can wake the computer from specific states Table 16 Wake up Devices and Events
9. ccccccescececeeeeeeeeeneeeeeeeeeeseaaees 93 3 9 2 Intel Rapid BIOS Boots eek sd enc ade ee Ee meen Wee ae 93 3 10 BIOS SGCUNty TEE 94 BIOS Setup Program AN E a ge elen EE 95 4 2 Maintenance M ssel EEGENEN 96 4 3 Vertreter 97 4 4 Advanced WGI EE 98 4 4 1 PCI Configuration SUBMeNUs sc 5 lt i cehis ceci dhe dcbateie eaceiedcdetaldi eas teelddacaia eee 99 4 4 2 Boot Configuration SubMenu sic cc feedenigdecd cay Gdgncendeceeoutendeneupdedgemnddaeess 100 4 4 3 Peripheral Configuration SUDMENU eeeeeeeeeee eee e eee eee e eee teetneeeee erent 101 4 4 4 IDE Configuration SUMO MW EE EE 103 4 4 5 Diskette Configuration Gubmen eee eeeeeeneee teeter eteeeeaaeeeeeeeetea 106 4 4 6 Event Log Configuration SUDMENU eee eeeeeeee eee e eect etter eee eeeteeeeeeeeenenaes 107 4 4 7 Video Configuration Gubmen ccc cece eeeeee eee eeeeeecaaeeeeeeteeteaaeeeeeeenees 108 4 4 8 USB Configuration SUBMENU kk 109 4 4 9 Chipset Configuration SUBMENU cece cece rete eee eeeeeeeeeeeeeeeeeteeetaaees 110 4 4 10 Fan Control Configuration SUBMENU cece ee eeeetteeeeeeeeeeeeeeeseeeeeeeees 112 AS 7 SOCUETY Men EE 113 4 6 3 POWer MGM asec tniii el ee ee ARE E EE ROE a 114 4 6 1 ACPI e EE 114 e 115 4 7 1 Boot Device Priority EE d se d e eege 116 4 7 2 Hard Disk Drives SUDMENU ENNEN 117 4 7 3 Removable Devices Submenu EEN 117 4 7 4 ATAPI CD ROM Drives Gubmen 118 d i Ett SIAL E E EEEE 118 Error Messages and Beep
10. 1 Booooooooo00o000 000000 39 C EE l H G F OM15022 Item Description Item Description A CNR optional F Diskette drive B PCI bus connector 3 G Primary IDE C PCI bus connector 2 H Secondary IDE D PCI bus connector 1 SCSI LED E AGP connector Figure 16 D845GERG2 Add in Board and Peripheral Interface Connectors 2 INTEGRATOR S NOTES e The AGP connector is keyed for 1 5 V AGP cards only Do not attempt to install a legacy 3 3 V AGP card The AGP connector is not mechanically compatible with legacy 3 3 V AGP cards e Nor all PCI video cards can be used in PCI bus connectors I and 2 the PCI bus connectors closest to the processor To avoid clearance problems install PCI video cards in PCI bus connector 3 Table 34 SCSI LED Connector Pin Signal Name 1 SCSI_ACT 2 No connect 68 2 8 3 External UO Connectors Figure 17 shows the locations of the external I O connectors Technical Reference EE Ld L_ Pe H 1 1 O o l ji Io om 1baiz ien S Elo 33 B ER A i Te OS OM13580 Item Description For more information see A Auxiliary front p
11. Figure 23 shows the locations of the localized high temperature zones eu ee p ES x B D C aKO Processor voltage regulator area Processor Intel 82845GE GMCH Intel 82801DB ICH4 Dom gt Figure 23 Localized High Temperature Zones Technical Reference Table 45 provides maximum case temperatures for the Desktop Board D845GEB V2 D845GERG2 components that are sensitive to thermal changes The operating temperature current load or operating frequency could affect case temperatures Maximum case temperatures are important when considering proper airflow to cool the Desktop Board D845GEB V2 D845GERG2 Table 45 Thermal Considerations for Components Component Maximum Case Temperature Intel Pentium 4 processor For processor case temperature see processor datasheets and processor specification updates Intel 82845GE GMCH 83 C under bias Intel 82801DB ICH4 110 C under bias For information about _Refer to Intel Pentium 4 processor datasheets and specification updates Section 1 3 page 19 83 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specificati
12. 80 Keyboard test started Clearing output buffer checking for stuck key to issue keyboard reset command 81 Keyboard reset error stuck key found To issue keyboard controller interface test command 82 Keyboard controller interface test over To write command byte and init circular buffer 83 Command byte written global data init done To check for lock key continued 123 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 124 Table 79 Runtime Code Uncompressed in F000 Shadow RAM continued Code Description of POST Operation 84 Lock key checking over To check for memory size mismatch with CMOS 85 Memory size check done To display soft error and check for password or bypass setup 86 Password checked About to do programming before setup 87 Programming before setup complete To uncompress SETUP code and execute CMOS setup 88 Returned from CMOS setup program and screen is cleared About to do programming after setup 89 Programming after setup complete Going to display power on screen message 8B First screen message displayed lt WAIT gt message displayed PS 2 Mouse check and extended BIOS data area allocation to be done DC Setup options programming after CMOS setup about to start 8D Going for hard disk controller reset 8F Hard disk controller reset done Floppy setup to be done next 91 Floppy setup com
13. Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 1 14 2 7 Wake from USB USB bus activity wakes the computer from ACPI S1 or S3 states gt NOTE Wake from USB requires the use of a USB peripheral that supports Wake from USB 1 14 2 8 Wake from PS 2 Devices PS 2 device activity wakes the computer from an ACPI S1 or S3 state 1 14 2 9 PME Signal Wake up Support When the PME signal on the PCI bus is asserted the computer wakes from an ACPI S1 S3 S4 or S5 state with Wake on PME enabled in BIOS 52 2 Technical Reference What This Chapter Contains 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 2 10 2 11 2 12 2 13 2 14 2 15 lut geil le deu EE 53 Memory Map E 53 Fixed N O Wap EE 54 DIMA CAE EE 55 PCI Configuration Space Map ccs iiccsctsiieascteicis tela ictasdle lita sntedeesadis ANDR E ANERER EE EAE AER 55 HIG FRUIDUS sso Sete ee tetas secon sed ancen deca eces a oud nad ancua dec a a aa a ai 56 PCI Interrupt Routing Meed 57 el ne ee 59 Jumper e 72 Mechanical Copnslderations nnen na 74 Electrical Gonsid erations 2 0 25 eset ee hice Bees eet aa heir ate eee ee 78 Thermal Consideratlons aa A a a Aa DETI 81 REE EE 84 Sitti Eu ET NEE 84 Regulatory Compliance eege has taste meee ee tes cent ne Bae ee 85 2 1 Introduction Sections 2 2 2 6 contain several standalone tables Table 19 describes the system memory map Table 20 shows the I O map Table 21 lists the DMA channels Table 22 defines
14. Table 27 Rear Chassis Fan Connector Pin Signal Name E Note Bo Jeu 3 DEAR TACH OUT Note Pin 1 is Control if the Desktop Board uses the hardware monitoring and fan control ASIC Pin 1 is Ground if the Desktop Board uses the hardware monitoring ASIC Table 28 ATAPI CD ROM Connector Pin Signal Name Left audio input from CD ROM CD audio differential ground CD audio differential ground Right audio input from CD ROM A O N 64 Technical Reference S INTEGRATOR S NOTES e Use only ATX12V compliant power supplies with these boards ATX12V power supplies have an additional power lead that provides required supplemental power for the processor Always connect the 20 pin and 4 pin leads of ATX12V power supplies to the corresponding connectors on the board otherwise the board will not boot Do not use a standard ATX power supply The board will not boot with a standard ATX power supply Table 29 ATX12V Power Connector Pin Signal Name Signal Name 1 Ground Ground 12 V 12 V Table 30 Processor Fan Connector Pin Signal Name 1 Note 2 12 V 3 CPU_FAN_TACH Pin 1 is Control if the Desktop Board uses the hardware monitoring and fan control ASIC Pin 1 is Ground if the Desktop Board uses the hardware monitoring ASIC Note 65 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 66 Ta
15. To estimate the amount of standby current required for a particular system configuration standby current requirements of all installed components must be added to determine the total standby current requirement Refer to the descriptions in Table 43 and review the following steps 1 Note the total Desktop Board D845GEB V2 or D845GERG2 standby current requirement 2 Add to that the total PS 2 port standby current requirement if a wake enabled device is connected 3 Add from the PCI 2 2 slots wake enabled row the total number of wake enabled devices installed PCI and AGP and multiply by the standby current requirement 4 Add from the PCI 2 2 slots nonwake enabled row the total number of wake enabled devices installed PCI and AGP and multiply by the standby current requirement 5 Add all additional wake enabled devices and nonwake enabled devices standby current requirements as applicable 6 Add all the required current totals from steps 1 through 5 to determine the total estimated standby current power supply requirement Table 43 Standby Current Requirements Instantly Available PC Current Standby Current Support Estimated for Description Requirements mA Integrated Board Components Total for Desktop Board 370 D845GEBV2 D845GERG2 Instantly Available PC Stand by PS 2 ports Note 345 Current Support PCI 2 2 slots wake enabled 375 e Estimated for add on PCI 2 2 slots nonwake e
16. Hard Disk Pre Delay Disabled default 3 Seconds 6 Seconds 9 Seconds 12 Seconds 15 Seconds 21 Seconds 30 Seconds Specifies the hard disk drive pre delay Primary IDE Master Primary IDE Slave Select to display sub menu Select to display sub menu Reports type of connected IDE device Reports type of connected IDE device Secondary IDE Master Secondary IDE Slave Select to display sub menu Select to display sub menu Reports type of connected IDE device Reports type of connected IDE device 103 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 4 4 4 1 Primary Secondary IDE Master Slave Submenus To access these submenus select Advanced on the menu bar then IDE Configuration and then the master or slave to be configured Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Primary IDE Master Primary IDE Slave Secondary IDE Master Secondary IDE Slave Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration Fan Control Configuration There are four IDE submenus primary master primary slave secondary master and secondary slave Table 60 shows the format of the IDE submenus For brevity only one example is shown Table 60 Primary Secondary IDE Master Slave S
17. Table 66 Fan Control Configuration Submenu Feature Options Description Fan Control e Disabled Disables enables fan control e Enabled default Lowest Fan Speed e Slow default Defines the lower limit of chassis fan speed e Off operation Slow At low system temperatures the fans will continue to run at a slow speed Off At low system temperatures the fans will turn off NOTE These options will not take effect until power has been completely removed from the system After saving the BIOS settings and turning the system off unplug the power cord and wait at least 30 seconds before re applying power and turning the system back on BIOS Setup Program 4 5 Security Menu To access this menu select Security from the menu bar at the top of the screen Maintenance Main Advanced Security Power Boot Exit The menu represented by Table 67 is for setting passwords and security features Table 67 Security Menu If no password entered previously Feature Options Description Supervisor Password No options Reports if there is a supervisor password set User Password No options Reports if there is a user password set Set Supervisor Password Password can be up to seven Specifies the supervisor password alphanumeric characters User Access Level e No Access Sets BIOS Setup Utility access rights for user Note 1 e View Only level e Limited e Full default Set User Password Passw
18. e Software support through Advanced Configuration and Power Interface ACPI e Hardware support 44 Power connector Fan connectors LAN wake capabilities Instantly Available PC technology Resume on Ring Wake from USB Wake from PS 2 devices Power Management Event signal PME wake up support Product Description 1 14 1 ACPI ACPI gives the operating system direct control over the power management and Plug and Play functions of a computer The use of ACPI with the Desktop Boards D845GEBV2 and D845GERG2 requires an operating system that provides full ACPI support ACPI features include e Plug and Play including bus and device enumeration e Power management control of individual devices add in boards some add in boards may require an ACPI aware driver video displays and hard disk drives e Methods for achieving less than 15 watt system operation in the power on standby sleeping state e A Soft off feature that enables the operating system to power off the computer e Support for multiple wake up events see Table 16 on page 47 e Support for a front panel power and sleep mode switch Table 14 lists the system states based on how long the power switch is pressed depending on how ACPI is configured with an ACPI aware operating system Table 14 Effects of Pressing the Power Switch and the power switch is If the system is in this state pressed for the system enters this state Of
19. the LAN subsystem asserts a wake up signal that powers up the computer Depending on the LAN implementation the Desktop Boards D845GEB V2 and D845GERG2 support LAN wake capabilities with ACPI in the following ways e The PCI bus PME signal for PCI 2 2 compliant LAN designs e The onboard LAN subsystem e ACNR based LAN subsystem 49 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 1 14 2 4 Instantly Available PC Technology A CAUTION 50 For Instantly Available PC technology the 5 V standby line for the power supply must be capable of providing adequate 5 V standby current Failure to provide adequate standby current when implementing Instantly Available PC technology can damage the power supply Refer to Section 2 11 3 on page 79 for additional information Instantly Available PC technology enables the Desktop Boards D845GEB V2 and D845GERG2 to enter the ACPI S3 Suspend to RAM sleep state While in the S3 sleep state the computer will appear to be off the power supply is off and the front panel LED is amber if dual colored or off if single colored When signaled by a wake up device or event the system quickly returns to its last known wake state Table 16 on page 47 lists the devices and events that can wake the computer from the S3 state The Desktop Boards D845GEBV2 and D845GERG2 support the PCI Bus Power Management Interface Specification For information on the version of this specification see Se
20. 4 Specifications Reference Specification Version Revision Date The information is Name Title and Ownership available from AC 97 Audio Codec 97 Revision 2 2 ftp download intel com ial September 2000 scalableplatforms Intel Corporation ac97r22 pdf ACPI Advanced Configuration and Version 2 0 http www acpi info spec htm Power Interface July 27 2000 Specification Compaq Computer Corporation Intel Corporation Microsoft Corporation Phoenix Technologies Limited and Toshiba Corporation AGP Accelerated Graphics Port Revision 2 0 http www agpforum org Interface Specification May 4 1998 specs_specs htm Intel Corporation AMI BIOS AMIBIOS Desktop Core 8 0 AMIBIOS 8 0 http www ami com support 2001 doc amibios8 pdf American Megatrends Inc ATA Information Technology AT Revision 3 http www t13 org ATAPI 5 Attachment with Packet February 29 2000 Interface 5 ATA ATAPI 5 Contact T13 Chair Seagate Technology ATX ATX Specification Version 2 03 http www formfactors org December 1998 developer specs atx Intel Corporation atxspecs htm ATX12V ATX ATX12V Power Supply Version 1 2 http www formfactors org Design Guide August 2000 developer specs atx Intel Corporation atxspecs htm BIS Boot Integrity Services BIS Version 1 0 http www intel com labs Application Programming August 4 1999 manage wfm wfmspecs htm Interface API Intel Corporation CNR Communication and Rev
21. BIOS automatically configures interrupts the I O space and other system resources Any interrupts set to Available in Setup are considered to be available for use by the add in card Autoconfiguration information is stored in ESCD format For information about the versions of PCI and Plug and Play supported by the BIOS see Section 1 5 3 3 2 PCI IDE Support 88 If you select Auto in the BIOS Setup program the BIOS automatically sets up the two PCI IDE connectors with independent I O channel support The IDE interface supports hard drives up to ATA 66 100 and recognizes any ATAPI compliant devices including CD ROM drives tape drives and Ultra DMA drives see Section 1 5 for the supported version of ATAPI The BIOS determines the capabilities of each drive and configures them to optimize capacity and performance To take advantage of the high capacities typically available today hard drives are automatically configured for Logical Block Addressing LBA and to PIO Mode 3 or 4 depending on the capability of the drive You can override the auto configuration options by specifying manual configuration in the BIOS Setup program To use ATA 66 100 features the following items are required e An ATA 66 100 peripheral device e An ATA 66 100 compatible cable e ATA 66 100 operating system device drivers NOTE ATA 66 100 compatible cables are backward compatible with drives using slower IDE transfer protocols If an ATA 66 100 disk drive a
22. Codes Beli BIOS Error E EE 119 5 2 PON 80h EH Ree EE 121 5 3 Bus Initialization Checkpoints 3 iisccccccv eset enehecedes caeceeenteeet aac essence ade 125 54 SE enee ea said dE EE a Nera ed 126 B D BIOS Beep E 126 vii Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification Figures 1 Desktop Board D845GEBV2 Components ssssssseeessesretetsstrrtttrsstrtttrrnnertnnrnnnnrenne 14 2 Desktop Board D845GERG2 Component cccceeccceeeeeeeeeeeeeeeeeeenaeeeeeeeeeeeeeeeaaees 15 3 Desktop Board D845GERG2 Components with Gigabit Ethernet LAN option 16 4 UBIOCK DIS OFAN WEE 17 5 Block Diagram of the Desktop Board D845GEBV2 with the Gigabit Ethernet LAN Optom a coca se head ae ne tne EE 18 6 Intel 845GE Chipset Block Diagram kk 26 Zo USB Port Configuration est EENS EE AE ee p Ea 33 8 Audio Subsystem Block Dees ageet as eto eee hes ee 37 9 ICH4 and CNR Signal Interface 40 10 Thermal MOnitoring esoe eege EE ee 43 11 Location of the Standby Power Indicator LED on the D845GEBV2 Board 51 12 Back Panel Connectors cscnsccs are e dee eg 60 13 Audio Power and Hardware Control Connectors cccccccseeseeeeeeeeeeeeeeeeeeeeeeseeaenens 62 14 Audio Power and Hardware Control Connectors on the Desktop Board D845GERG2 with the Gigabit Ethernet LAN option 63 15 D845GEBV2 Add in Board and Peripheral Interface Connectors sssssssesseneeeeseeeeee 67 16 D845GERG2 Add in Board and Pe
23. IDE devices submenu Diskette Configuration Select to display Configures the diskette drive submenu Event Log Configuration Select to display Configures Event Logging submenu Video Configuration Select to display Configures video features submenu USB Configuration Select to display Configures USB support submenu Chipset Configuration Select to display Configures advanced chipset features submenu Fan Control Configuration Select to display Configures fan control options submenu BIOS Setup Program 4 4 1 PCI Configuration Submenu To access this submenu select Advanced on the menu bar and then PCI Configuration Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration Fan Control Configuration The submenu shown in Table 56 is used to configure the IRQ priority of PCI slots individually Table 56 PCI Configuration Submenu Feature Options Description PCI Slot1 IRQ Priority e Auto default Allows selection of IRQ priority for PCI bus connector 1 Note 1 e5 e 9 e 10 e 11 PCI Slot2 IRQ Priority e Auto default Allows selection of IRQ priority for PCI bus connector 2 Note 1 25 e 9 e 1 0 e 11 PCI Slot3 IRQ Priority e Auto default Allows selection of IRQ priority for PCI bus con
24. Resolution Color Palette Frequencies Hz Notes 320 x 200 16 colors 70 T G B 256 colors 70 G B 320x350 16 colors 70 Ire 360x400 16colors 70 T B 640 x 200 16 colors 70 T G B 640 x 350 16 colors 70 T G B 640x480 16 colors 60 G B 256 colors 60 75 85 G B L 64K colors 60 75 85 G B L 16 M colors 60 75 85 G B L 720x400 16 colors 70 TB 800 x 600 256 colors 60 75 85 G B L 64Kcolors 60 75 85 G B L 16 M colors 60 75 85 G B L 1024x768 256 colors 60 75 85 G B L 64 K colors 60 75 85 G B L 16 Mcolors 60 75 85 G B L 1056 x 350 16 colors 70 T B 1056x400 16 colors 70 T B 1056 x 480 16 colors 70 T B 1280x1024 256colors 60 75 85 G B L 64 K colors 60 75 85 G B L 16 Mcolors 60 75 85 G B L 1600x1200 256 colors 60 75 85 G B L 64K colors 60 75 85 G B L 16 M colors 60 75 85 G B L 1920x1440 256 colors 60 75 G B L 64 K colors G B L Notes T Text mode G Graphics mode B Banked addressing mode L Linear addressing mode Product Description 29 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification Table 10 lists the supported configuration modes of the graphics subsystem Table 10 Supported Configuration Modes Available Refresh Supported bpp Configuration Mode Resolution Frequencies Hz see Table 11 for more information 640x480 60 72 75 85 100 120 6 800 x 600 60 72 75 85 100 120
25. S M A R T Self Monitoring Analysis e Disabled and Reporting Technology e Enabled This item is read only unless Type is set to User Cable Detected No options Displays the type of cable connected to the IDE interface 40 conductor or 80 conductor for ATA 100 peripherals 105 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 4 4 5 Diskette Configuration Submenu To access this menu select Advanced on the menu bar and then Diskette Configuration Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration Fan Control Configuration The submenu represented by Table 61 is used for configuring the diskette drive Table 61 Diskette Configuration Submenu Feature Options Description Diskette Controller e Disabled Disables or enables the integrated diskette e Enabled default controller Floppy A e Not Installed Specifies the capacity and physical size of e 360 KB 514 diskette drive A e 1 2 MB 5 e 720 KB 3v2 e 1 44 MB 3 2 default e 2 88 MB 3v2 Diskette Write Protect e Disabled default Disables or enables write protection for the e Enabled diskette drive 106 BIOS Setup Program 4 4 6 Event Log Configuration Submenu To access this m
26. Support for an Intel Celeron processor in an mPGA478 socket with a 400 MHz system bus Memory e Two 184 pin DDR SDRAM Dual Inline Memory Module DIMM sockets e Support for single sided or double sided DIMMs DDR333 266 e Support for up to 2 GB system memory NOTE The Desktop Boards D845GEBV2 D845GERG2 have been designed to support DIMMs based on 512 Mbit technology for a maximum onboard capacity of up to 2 GB but this technology has not been validated currently validated up to 1 0 GB on this board Please refer to the following Intel web sites For the Desktop Board D845GEBV2 http developer intel com design motherbd bv2 bv2_mem htm For the Desktop Board D845GERG2 http developer intel com design motherbd rg2 rg2_mem htm Chipset Intel 845GE Chipset consisting of e Intel 82845GE Graphics and Memory Controller Hub GMCH e Intel 82801DB I O Controller Hub ICH4 e 4 Mbit Firmware Hub FWH Video e Intel Extreme Graphics controller e AGP connector supporting 1x 2x and 4x AGP cards 1 5 V only or an AGP Digital Display ADD card e Integrated retention mechanism Audio Audio subsystem for AC 97 processing using the Analog Devices AD1981B codec UO Control SMSC LPC47M172 LPC Bus I O controller USB Support for USB 2 0 devices Peripheral e Up to six USB ports Interfaces e One serial port e One parallel port e Two IDE interfaces with UDMA 33 ATA 66 100 support e One diskette drive in
27. Type Wrong CMOS Checksum Bad The display type is different than what has been stored in CMOS Check Setup to make sure type is correct The CMOS checksum is incorrect CMOS memory may have been corrupted Run Setup to reset values CMOS Settings Wrong CMOS Date Time Not Set CMOS values are not the same as the last boot These values have either been corrupted or the battery has failed The time and or date values stored in CMOS are invalid Run Setup to set correct values DMA Error Error during read write test of DMA controller FDC Failure Error occurred trying to access diskette drive controller HDC Failure Error occurred trying to access hard disk controller continued 119 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 120 Table 76 BIOS Error Messages continued Error Message Explanation Checking NVRAM NVRAM is being checked to see if it is valid Update OK NVRAM was invalid and has been updated Updated Failed NVRAM was invalid but was unable to be updated Keyboard Error KB Interface Error Memory Size Decreased Error in the keyboard connection Make sure keyboard is connected properly Keyboard interface test failed Memory size has decreased since the last boot If no memory was removed then memory may be bad Memory Size Increased Memory Size Changed Memory size has increased since the
28. are described in the ATX specification See Section 1 5 for information about the ATX specification gt NOTE The I O shield drawings in this document are for reference only An I O shield compliant with the ATX chassis specification 2 03 is available from Intel 162 300 063 0 005 1 600 0 120 6 390 REF Q o Q o ro ral r p 0 787 0 010 TYP 20 0 254 3x Dia 0 039 1 000 3x Dia 0 330 8 380 8X RO 5 MIN 29 480 A net oe SHH ose 0 276 7 012 Mei CG D i sc 0 000 POF a P 0 690 S mD w Ye a ea D dll os 11 811 AG E PEM py 11 810 0 567 TM ef le T 0 472 14 400 12 000 es hth 29 DN GE om os SE 88 Js 23 29 88 xg ae RE SS OF SO Mio Noi OL Toi We 2 E S wb S Si J Pictorial View OM11487 Figure 21 I O Shield Dimensions for Desktop Boards with the LAN Subsystem 76 Technical Reference 6 390 REF 162 300 005 600 0 120 Kee 0 010 TYP 20 0 254 3x Dia 0 330 8 380 3x Dia 0 039 1 000 8X RO 5 MIN 0 884 22 450 A 0 276 h
29. be programmed according to the e Manual Aggressive Memory detected e Manual User Defined Manual Aggressive Selects most aggressive user defined timings Manual User Defined Allows manual override of detected SDRAM settings continued 110 BIOS Setup Program Table 65 Primary Secondary IDE Master Slave Submenus continued Feature Options Description SDRAM RAS Active to e 8 Corresponds to tRAS Precharge e 7 e 6 default e 5 SDRAM CAS Latency e 2 0 default Selects the number of clock cycles required to e 25 address a column in memory SDRAM RAS to CAS e A Selects the number of clock cycles between Delay e 3 default addressing a row and addressing a column e 2 SDRAM RAS e 4 Selects the length of time required before accessing Precharge e 3 default a new row e 2 111 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 4 4 10 Fan Control Configuration Submenu 112 To access this menu select Advanced on the menu bar and then Fan Control Configuration Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration Fan Control Configuration The submenu represented in Table 66 is for configuring the fan control options
30. clear memory above 1M 4D Memory above 1M cleared SOFT RESET Going to save the memory size Go to check point 52h 4E Memory test started NOT SOFT RESET About to display the first 64k memory size 4F Memory size display started This will be updated during memory test Going for sequential and random memory test 50 Memory testing initialization below 1M complete Going to adjust displayed memory size for relocation shadow 51 Memory size display adjusted due to relocation shadow Memory test above 1M to follow 52 Memory testing initialization above 1M complete Going to save memory size information 53 Memory size information is saved CPU registers are saved Going to enter in real mode 54 Shutdown successful CPU in real mode Going to disable gate A20 line and disable parity NMI 57 A20 address line parity NMI disable successful Going to adjust memory size depending on relocation shadow 58 Memory size adjusted for relocation shadow Going to clear Hit lt DEL gt message 59 Hit lt DEL gt message cleared lt WAIT gt message displayed About to start DMA and interrupt controller test 60 DMA page register test passed To do DMA 1 base register test 62 DMA 1 base register test passed To do DMA 2 base register test 65 DMA 2 base register test passed To program DMA unit 1 and 2 66 DMA unit 1 and 2 programming over To initialize 8259 interrupt controller 7F Extended NMI sources enabling is in progress
31. e Eed Ed 92 3 9 Fast Booting Systems with Intel Rapid BIOS Doc 93 3 10 BIOS Security Tt EE 94 3 1 Introduction The Desktop Boards D845GEBV2 and D845GERG2 use an Intel AMI BIOS that is stored in the Firmware Hub FWH and can be updated using a disk based program The FWH contains the BIOS Setup program POST the PCI auto configuration utility and Plug and Play support The BIOS displays a message during POST identifying the type of BIOS and a revision code The initial production BIOSs are identified as RG84510A 86A When the Desktop Board s jumper is set to configuration mode and the computer is powered up the BIOS compares the CPU version and the microcode version in the BIOS and reports if the two match For information about Refer to The Desktop Boards compliance level with Plug and Play Section 1 5 page 20 3 2 BIOS Flash Memory Organization The Firmware Hub FWH includes a 4 Mbit 512 KB symmetrical flash memory device Internally the device is grouped into eight 64 KB blocks that are individually erasable lockable and unlockable 87 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 3 3 Resource Configuration 3 3 1 PCI Autoconfiguration The BIOS can automatically configure PCI devices PCI devices may be onboard or add in cards Autoconfiguration lets a user insert or remove PCI cards without having to configure the system When a user turns on the system after adding a PCI card the
32. last boot If no memory was added there may be a problem with the system Memory size has changed since the last boot If no memory was added or removed then memory may be bad No Boot Device Available System did not find a device to boot Off Board Parity Error On Board Parity Error D parity error occurred on an off board card This error is followed by an address A parity error occurred in onboard memory This error is followed by an address Parity Error NVRAM CMOS PASSWORD cleared by Jumper A parity error occurred in onboard memory at an unknown address NVRAM CMOS and passwords have been cleared The system should be powered down and the jumper removed lt CTRL_N gt Pressed CMOS is ignored and NVRAM is cleared User must enter Setup Error Messages and Beep Codes 5 2 Port 80h POST Codes During the POST the BIOS generates diagnostic progress codes POST codes to I O port 80h If the POST fails execution stops and the last POST code generated is left at port 80h This code is useful for determining the point where an error occurred Displaying the POST codes requires a PCI bus add in card often called a POST card The POST card can decode the port and display the contents on a medium such as a seven segment display gt NOTE The POST card must be installed in PCI bus connector 1 The tables below offer descriptions of the POST codes generated by the BIOS Tabl
33. located on the back panel The serial port supports data transfers at speeds up to 115 2 kbits sec with BIOS support For information about Refer to The location of the serial port A connector Figure 12 page 60 1 9 2 Parallel Port The 25 pin D Sub parallel port connector is located on the back panel Use the BIOS Setup program to set the parallel port mode For information about Refer to The location of the parallel port connector Figure 12 page 60 Setting the parallel port s mode Table 58 page 101 35 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 1 9 3 Diskette Drive Controller The I O controller supports one diskette drive Use the BIOS Setup program to configure the diskette drive interface For information about Refer to The location of the diskette drive connector on the D845GERG2 board Figure 15 page 67 The location of the diskette drive connector on the D845GEBV2 board Figure 16 page 68 The supported diskette drive capacities and sizes Table 61 page 106 1 9 4 Keyboard and Mouse Interface o gt 36 PS 2 keyboard and mouse connectors are located on the back panel NOTE The keyboard is supported in the bottom PS 2 connector and the mouse is supported in the top PS 2 connector Power to the computer should be turned off before a keyboard or mouse is connected or disconnected For information about Refer to The location of the keyboard and mouse connec
34. make sure that peripheral devices are installed at least 1 5 inches above the main power connector the diskette drive connector and the IDE connector and the DIMM sockets 800 20 32 6 50 L 165 10 m 610 7 YO EZ 154 94 J GC 5 20 j 132 08 Io ci d oli 0 00 5 4 4 O 1 700 C Se 42 5 229 87 1 307 2 600 8 800 ao 66 04 223 52 OM15023 Figure 20 Desktop Board D845GERG2 Dimensions 75 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 2 10 3 I O Shield The back panel I O shield for the Desktop Boards D845GEBV2 and D845GERG2 must meet specific dimension and material requirements Systems based on these Desktop Boards need the back panel I O shield to pass certification testing Figure 21 shows the I O shield for Desktop Boards with the onboard LAN subsystem Figure 22 shows the I O shield for Desktop Boards without the onboard LAN subsystem Dimensions are given in inches to a tolerance of 0 02 inches The figures also indicate the position of each cutout Additional design considerations for I O shields relative to chassis requirements
35. port 0378 037F 8 bytes LPT1 03B0 03BB 12 bytes Intel 82845GE GMCH 03C0 03DF 32 bytes Intel 82845GE GMCH 03E8 03EF 8 bytes COM3 03F0 03F5 6 bytes Diskette channel 1 03F6 1 byte Primary IDE channel command port 03F8 03FF 8 bytes COM1 04D0 04D1 2 bytes Edge level triggered PIC LPTn 400 8 bytes ECP port LPTn base address 400h 4 bytes PCI configuration address register OCF9 Note 3 E byte Turbo and reset control register OCFC OCFF 4 bytes PCI configuration data register FFAO FFA7 e bytes Primary bus master IDE registers FFA8 FFAF 8 bytes Secondary bus master IDE registers Notes 1 Default but can be changed to another address range 2 Dword access only 3 Byte access only NOTE Some additional I O addresses are not available due to ICH4 address aliassing The ICH4 data sheet provides more information on address aliassing For information about Obtaining the ICH4 data sheet Refer to Section 1 3 on page 19 2 4 DMA Channels Table 21 DMA Channels Technical Reference DMA Channel Number Data Width System Resource 8 or 16 bits Open 1 8 or 16 bits Parallel port 2 8 or 16 bits Diskette drive 3 8 or 16 bits Parallel port for ECP or EPP 4 8 or 16 bits DMA controller 5 16 bits Open 6 16 bits Open 7 16 bits Open 2 5 PCI Configuration Space Map Table 22 PCI Configuration Space Map Bus Dev
36. the shipping container e Australian Communications Authority ACA C Tick mark consists of a stylized C overlaid with a check tick mark component side followed by Intel supplier code number N 232 The C tick mark should also be on the shipping container e Korean EMC certification logo mark consists of MIC lettering within a stylized elliptical outline e Printed wiring board manufacturer s recognition mark consists of a unique UL recognized manufacturer s logo along with a flammability rating 94V 0 solder side e PB part number Intel bare circuit board part number solder side Also includes SKU number starting with AA followed by additional alphanumeric characters For the Desktop Board D845GEBV2 the PB number A97500 00x For the Desktop Board D845GERG2 the PB number is A97503 00x e Battery Side Up marking located on the component side of the Desktop Board in close proximity to the battery holder 3 Overview of BIOS Features What This Chapter Contains E We dee e EE 87 3 2 BIOS Flash Memory Organization eech ee ee eee 87 3 3 CRESOURCE COnnqQurationis ties tienda eae Reda setecaeh Ae Sete hued bee seabed eee ta ahead het a 88 3 4 System Management BIOS SMBIOS sssssesesssssssnnrrneresserrrerrrnrrrrrrrnnrnrsrrrrrnrrnnreeent 89 3 5 Legacy USB SUppOrt ices ois ocacetsts cei a E a Ea EREE 89 3 6 BIDS Updates bedengt eege geesde eelerer 90 3 7 Recovering Te RRE 91 3 8 BOOT Ops oreren Ee
37. the PCI configuration space map and Table 23 describes the interrupts The remaining sections in this chapter are introduced by text found with their respective section headings 2 2 Memory Map Table 19 System Memory Map Address Range decimal Address Range hex Size Description 1024 K 2097152 K 100000 7 FFFFFFF Extended memory 960 K 1024 K F0000 FFFFF Runtime BIOS 896 K 960 K E0000 EFFFF Reserved 800 K 896 K C8000 DFFFF 96 KB Available high DOS memory open to the PCI bus 640 K 800 K A0000 C7FFF 160 KB Video memory and BIOS 639 K 640 K 9FC00 9FFFF 1 KB Extended BIOS data movable by memory manager software 512 K 639 K 80000 9FBFF Extended conventional memory OK 512K 00000 7FFFF 512 KB Conventional memory 53 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 2 3 Fixed I O Map 54 Table 20 I O Map Address hex Size Description 0000 OOFF 256 bytes Used by the Desktop Board D845GEBV2 D845GERG2 Refer to the ICH4 data sheet for dynamic addressing information 0170 0177 8 bytes Secondary IDE channel _O1FO O1F7 D bytes Primary IDE channel 0228 022F Note 1 8 bytes LPT3 0278 027F Note1 8 bytes LPT2 02E8 O2EF Note1 8 bytes COM4 02F8 02FF Note 1 8 bytes COM2 OCF8 OCFB Note 2 0376 l1 byte Secondary IDE channel command port 0377 bits 6 0 7 bits Secondary IDE channel status
38. used to call attention to information that may be useful to system integrators Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification A CAUTION Cautions are included to help you avoid damaging hardware or losing data A WARNING Warnings indicate conditions which if not observed can cause personal injury Other Common Notation Used after a signal name to identify an active low signal such as USBPO NxnX When used in the description of a component N indicates component type xn are the relative coordinates of its location on the Desktop Boards D845GEBV2 and D845GERG 2 and X is the instance of the particular part at that general location For example J5J1 is a connector located at 5J It is the first connector in the 5J area GB Gigabyte 1 073 741 824 bytes GB sec Gigabytes per second KB Kilobyte 1024 bytes Kbit Kilobit 1024 bits kbits sec 1000 bits per second MB Megabyte 1 048 576 bytes MB sec Megabytes per second Mbit Megabit 1 048 576 bits Mbit sec Megabits per second xxh An address or data value ending with a lowercase h indicates a hexadecimal value x x V Volts Voltages are DC unless otherwise specified t This symbol is used to indicate third party brands and names that are the property of their respective owners Contents 1 Product Description Tel lt BOareIDIMGRENCSS arcs oteoetetccecedssreeieten E e E s
39. 1024x768 60 70 75 85 100 1024x768 120 1152 x 864 60 75 85 1152 x 864 100 a a o 1280x720 60 75 85 6 1280x720 100 5 1280 x 768 Reduced blanking 6 1280 x 960 Zen ji 1280x960 85 5 1280x1024 60 6 1280x1024 75 1280x1024 85 100 1280x1024 120 1400x1050 _ 1600 x 900 1600x900 75 85 1600x900 100 1600x1200 1600 x 1200 75 85 100 1856x1392 60 75 CD CH Q CH w A wo ow 1920x1080 60 1920x1200 60 3 60 3 2048 x 1536 30 Product Description Table 11 describes the bpp configuration mode values referenced in Table 10 In Table 11 assume that for each configuration mode number the features of all lower numbers are also supported For example if the supported configuration mode is 4 then modes 1 through 3 are also supported DVD consists of both the overlay engine as well as the MPEG decoding both are necessary for DVD playback Table 11 Details of bpp Configuration Modes Configuration Mode Number Description 32 bpp 16 M colors with DVD Overlay MPEG decode On 16 bpp 64 K colors with DVD On 32 bpp 16 M colors with DVD Off 16 bpp 64 K colors with DVD Off 8 bpp 256 colors with DVD On 8 bpp 256 colors with DVD off zk NIO AJ aJo For information about Refer to Obtaining graphics software and utilities Section 1 3 page 19 1 8 1 2 Dynamic Video Memory Technology DVMT D
40. 210 3 VO Shield BEE 76 2 11 Electrical Considerations Aere ee ees 78 2 11 1 Power Consumption EE 78 2 11 2 Add in Board CGonsiderattons kA 78 2 11 3 Standby Current Requirements ANEN 79 2 11 4 Fan Connector Current Capability cee cceceee cere eeeneeeeeeeeeeteaaeeeeeeeeene 80 2 11 5 Power Supply Considerations kee 81 2 12 Thermal COMSIASKATIONS sinna ap a detec EE 81 E lte 84 EE Re nl E 84 2 15 Regulatory Complianee a cctsccteieed adeno ENEE eee eee eee 85 215 1 Safety E Lee E 85 215 2 ENEE EEN ee ee ege em ee 85 2 15 3 Product Certification Markings Board Level ccceecceseeeeeeeeeeeeteeeeeeeetee 86 Overview of BIOS Features Gi Ne ee lee EE 87 3 2 BIOS Flash Memory Organization sisi cecictecedaicescrcttseesiedsitvanettieeld NEE ERKENNEN 87 323 Res rce COMMQUFATION EE EE 88 3 3 1 PCI Autoconfiguration RE 88 3 3 2 PCIIDE ODER ee Se a eae eae 88 3 4 System Management BIOS GMDIOS 89 3 5 Legacy USE SUDDO ee ee R 89 Gebeier 90 3 6 1 L ng age Supportere erage aa pE raaa SARE EEE EEA ERARAS 90 3 6 2 Custom Splash Screen ienie tee tae 91 3 77 Recovering e RE 91 E OOL ODIONS 2 06 ooh ncarac te ee 92 3 8 1 CD ROM Boot EE 92 3 8 2 Network BOOT reran sein Assan eege eege eege sede ANNS 92 3 8 3 Booting Without Attached Devices AAA 92 3 8 4 Changing the Default Boot Device During DOT 92 Contents 3 9 Fast Booting Systems with Intel Rapid BIOS DGoot 93 3 9 1 Peripheral Selection and Configuration
41. 8 3 1 4 Power Switch Connector Pins 6 and 8 can be connected to a front panel momentary contact power switch The switch must pull the SW ONS pin to ground for at least 50 ms to signal the power supply to switch on or off The time requirement is due to internal debounce circuitry on the board At least two seconds must pass before the power supply will recognize another on off signal 2 8 3 2 Auxiliary Front Panel Power Sleep Message Waiting LED Connector Pins 1 and 3 of this connector duplicate the signals on pins 2 and 4 of the front panel connector Table 39 lists the signal names of the Auxiliary Front Panel Power Sleep Message Waiting LED Connector Table 39 Auxiliary Front Panel Power Sleep Message Waiting LED Connector Pin Signal Name In Out Description 1 HDR_BLNK_GRN Out Front panel green LED 2 Not connected 3 HDR_BLNK_YEL Out Front panel yellow LED 71 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 2 9 Jumper Blocks A CAUTION Do not move any jumpers with the power on Always turn off the power and unplug the power cord from the computer before changing a jumper setting Otherwise the Desktop Board could be damaged Figure 18 shows the location of the jumper blocks boo o O O
42. G2 board in a microATX chassis make sure that peripheral devices are installed at least 1 5 inches above the main power connector the diskette drive connector the IDE connector and the DIMM sockets 59 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 2 8 1 60 Back Panel Connectors Figure 12 shows the location of the back panel connectors The back panel connectors are color coded in compliance with PC 99 recommendations The figure legend below lists the colors used al OR 0 0 RRO D E G Item Description OM13577 Color A PS 2 mouse port PS 2 keyboard port USB port USB port Serial port A Parallel port VGA port USB port LAN optional USB port Mic in Audio line out SFraAco 7 Com m DO D Audio line in Green Purple Black Black Teal Burgundy Dark blue Black Black Black Pink Lime green Light blue Figure 12 Back Panel Connectors Technical Reference gt NOTE The back panel audio line out connector is designed to power headphones or amplified speakers only Poor audio quality occurs if passive non amplified speakers are connected to this output 2 8 2 Internal UO Connectors The internal I O connectors are divided into the fo
43. I O Version 1 0 http www formfactors org Connectivity Design October 2000 formfactors Guide Intel Corporation front_panel_io htm LPC Low Pin Count Interface Revision 1 0 http www intel com Specification September 29 1997 design chipsets industry Intel Corporation Ipc htm MicroATX microATX Motherboard Version 1 0 http www formfactors org Interface Specification December 1997 developer specs microatx Intel Corporation microatxspecs htm PCI PCI Local Bus Revision 2 2 http www pcisig com Specification December 18 1998 specifications PCI Special Interest Group PCI Bus Power Revision 1 1 http www pcisig com Management Interface December 18 1998 specifications Specification PCI Special Interest Group Plug and Plug and Play BIOS Version 1 0a http www microsoft com Play Specification May 5 1994 hwdev tech PnP Compaq Computer Corporation default asp Phoenix Technologies Limited and Intel Corporation continued 21 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 22 Table 4 Reference Name Specifications continued Specification Title The information is available from Version Revision Date and Ownership PXE Preboot Execution Environment Version 2 1 ftp download intel com ial September 20 1999 wfm pxespec pdf Intel Corporation SFX SFX SFX12V Power Supply Design Guide Version 2 0 http www formfactors org d
44. M memory specifications the board should be populated with DIMMs that support the Serial Presence Detect SPD data structure This allows the BIOS to read the SPD data and program the chipset to accurately configure memory settings for optimum performance For information about Refer to Obtaining DDR SDRAM specifications Section 1 5 page 20 Obtaining the PC Serial Presence Detect SPD Specification Section 1 5 page 20 Table 6 lists the supported DDR DIMM configurations Product Description Table 6 Supported DDR DIMM Configurations DIMM Configuration DDR SDRAM DDR SDRAM Organization Number of DDR Capacity Note 1 Density Front side Back side SDRAM Devices 64 MB sS 64 Mbit 8 M x 8 empty 8 64 MB SS 128 Mbit 8 M x 16 empty 4 128 MB DS 64 Mbit 8Mx8 8Mx8 16 128 MB SS 128 Mbit 16 M x 8 empty 8 128 MB SS 256 Mbit 16 M x 16 empty 4 256 MB DS 128 Mbit 16 Mx8 16Mx8 16 256 MB SS 256 Mbit 32 M x 8 empty 8 256 MB SS 512 Mbit 32 M x 16 empty 4 512 MB DS 256 Mbit 32 M x 8 32 M x8 16 512 MB SS 512 Mbit 64Mx8 8 1024 MB DS 512 Mbit 64 M x 8 64 M x8 16 Note 2 Notes 1 In this column DS refers to double sided memory modules containing DDR SDRAM devices on both sides and SS refers to single sided memory modules containing DDR SDRAM devices on only one side 2 DDR333 1 GB 1024 MB DIMMs have not been validated with these desktop boards Tabl
45. Memory No options Displays the total amount of RAM Memory Bank 0 No options Displays the amount and type of RAM in the memory Memory Bank 1 banks Language e English default Selects the current default language used by the BIOS e Francais System Time Hour minute and Specifies the current time second System Date Day of week Specifies the current date Month day year 97 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 4 4 Advanced Menu 98 To access this menu select Advanced on the menu bar at the top of the screen Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration video Configuration USB Configuration Chipset Configuration Fan Control Configuration Table 55 describes the Advanced Menu This menu is used for setting advanced features that are available through the chipset Table 55 Advanced Menu Feature Options Description PCI Configuration Select to display Configures individual PCI slots IRQ priority submenu Boot Configuration Select to display Configures Plug and Play and the Numlock key and resets submenu configuration data Peripheral Configuration Select to display Configures peripheral ports and devices submenu IDE Configuration Select to display Specifies type of connected
46. Se an 13 190 7 012 aml G EC 0 000 WV eee 2S 0 027 0 000 i D 0 690 0 465 Faas aS eo LI DS 0 465 11 811 A7 Ho GD 11 810 0 567 f SEN UL h Pe 4 T D D i 0 472 14 400 12 000 88 Js 28 S 88 Ag SB RS S5 SH e e Na oe Tai Eis ea oF 2 5 D S s Pictorial View OM15024 Figure 22 I O Shield Dimensions for Desktop Boards with no LAN Subsystem Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 2 11 Electrical Considerations 2 11 1 2 11 2 Add in Board Considerations 78 Power Consumption Table 42 lists voltage and current measurements for a computer that contains the Desktop Board D845GEB V2 D845GERG2 and the following e 2 80 GHz Intel Pentium 4 processor with a 512 KB cache e 64 MB AGP add in card e 256 MB DDR 333 SDRAM e 3 5 inch diskette drive e 10 GB IDE hard disk drive e 6 2 X IDE CD ROM 32 X CD ROM drive This information is provided only as a guide for calculating approximate power usage with additional resources added Values for the Windows XP desktop mode are measured at 640 x 480 x 256 colors and 60 Hz refresh rate AC watts are measured with the computer is connected to a typical 300 W power supply at nominal input voltage and frequency with a true RMS wattmeter at the line input NOTE Actual system power consumption depends upon system configuration The power supply should comply with the recommendations found in the ATX ATX12V Power Supply Desi
47. T gt or lt gt 2 Press lt Enter gt to set the selection as the intended boot device Note This boot device submenu appears only if at least one boot device of this type is installed This list will display up to twelve hard disk drives the maximum number of hard disk drives supported by the BIOS 4 7 3 Removable Devices Submenu To access this menu select Boot on the menu bar then Removable Devices Maintenance Main Advanced Security Power Boot Exit Boot Device Priority Hard Disk Drives Removable Devices ATAPI CD ROM Drives The submenu represented in Table 73 is for setting removable device priority Table 73 Removable Devices Submenu Feature Options Description 17 Removable Device Dependent on installed Specifies the boot sequence from the available Note removable devices removable devices To specify boot sequence 1 Select the boot device with lt T gt or lt gt 2 Press lt Enter gt to set the selection as the intended boot device Note This boot device submenu appears only if at least one boot device of this type is installed This list will display up to four removable devices the maximum number of removable devices supported by the BIOS 117 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 4 7 4 ATAPI CD ROM Drives Submenu To access this menu select Boot on the menu bar and then ATAPI CD ROM Drives Maintenance Main Advanced Se
48. VMT enables enhanced graphics and memory performance through Direct AGP and highly efficient memory utilization DVMT ensures the most efficient use of available system memory up to 64 MB for maximum 2 D 3 D graphics performance DVMT uses a portion of system physical memory as set in the BIOS Setup program for compatibility with legacy applications An example of this would be when using VGA graphics under DOS Once loaded the operating system and graphics drivers allocate the buffers needed for performing graphics functions gt NOTE The use of DVMT requires operating system driver support For information about Refer to Obtaining the DVMT white paper http developer intel com design chipsets 845g 1 8 1 3 Zone Rendering Technology ZRT The Intel Extreme Graphics Controller supports Zone Rendering Technology ZRT ZRT is a process by which the screen is divided into several zones Each zone is completely cached and rendered on chip before being written to the frame buffer The benefits of ZRT include the following e Increased memory efficiency via better localization of data e Increased on chip processing speed due to decreased wait time for data e Increased effective pixel fill rates 31 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification e Increased headroom for larger resolution and color depth e Reduced power as a result of decreased memory bandwidth e Reduction in depth and color bandwidth assoc
49. a diskette drive In the Peripheral Configuration submenu disable the LAN device if it will not be used This can reduce up to four seconds of option ROM boot time gt NOTE It is possible to optimize the boot process to the point where the system boots so quickly that the Intel logo screen or a custom logo splash screen will not be seen Monitors and hard disk drives with minimum initialization times can also contribute to a boot time that might be so fast that necessary logo screens and POST messages cannot be seen This boot time may be so fast that some drives might be not be initialized at all If this condition should occur it is possible to introduce a programmable delay ranging from three to 30 seconds using the Hard Disk Pre Delay feature of the Advanced Menu in the IDE Configuration Submenu of the BIOS Setup program For information about Refer to IDE Configuration Submenu in the BIOS Setup program Section 4 4 4 page 103 93 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 3 10 BIOS Security Features 94 The BIOS includes security features that restrict access to the BIOS Setup program and who can boot the computer A supervisor password and a user password can be set for the BIOS Setup program and for booting the computer with the following restrictions e The supervisor password gives unrestricted access to view and change all the Setup options in the BIOS Setup program This is the superv
50. al Product Specification 65 67 68 70 71 72 73 74 75 76 77 78 79 80 81 82 83 Chipset Configuration SUbMeOnus viuc ccsicdscatistccciss Eed ieee ied Cased eee 110 Fan Control Configuration SUBMENU cece ee eceeeeee cette ee eeeeeeeaeeeeeeeeeeeteeeenaaeeeeeeees 112 EE HERE EE Ee 113 POWER Mega EG 114 AC EE 114 BOOt ET EEN 115 Boot Device Priority IER xe seta begs serene ee Eege 116 Hard Disk Drives MEET 117 Removable Devices SuDM NU see EEEeEEEe ENEE EEEEENeENEEEEAEEEN ieee 117 ATAPI CD ROM Drives Submenu kk 118 Exit E UE 118 BIOS Error Messages ices chats glee ate ven ane eee ee Rn ean ed ey Maras 119 Uncompressed INIT Code Checkooints 121 Boot Block Recovery Code Checkpoint ccccccceeceeeeeeeeeeeeeeeeeneeeeeeeeessnaeeeeeeees 121 Runtime Code Uncompressed in FOOO Shadow HAM 122 Bus Initialization Checkpoints coc cic naseentiadi ee jectia ne mad ieeerniantasaeeanmeces 125 Upper Nibble High Byte Functions issscisi2cc ceccecs fete kNKEEN E ANEREN iabai inscberdeeaceleicleewease 125 Lower Nibble High Byte Functions cccccceeeeeseeeeeneceneeeneeeneeeneneneneneneneneneeeeeees 126 BECP COGS ee Ee 127 1 Product Description What This Chapter Contains wech vc sch sch sch sch sch sch sch sch sch sch sch sch 1 1 ch Board Diff rence S testaa arias ege eet 11 OVE WIOW e r a ate A 12 S nee 19 4 Operating eler 19 5 Design Specification
51. and the power supply See Intel s World Wide Web site for the most up to date list of supported processors for these boards The board provides an mPGA478 processor socket Table 5 lists the supported processors All supported onboard memory can be cached See the processor s data sheet for cachability limits Table 5 Supported Processors Processor Family Designation System Bus Frequency L2 Cache Size Pentium 4 processor 2 80 2 66 2 53 2 40B 533 MHz 512 KB and 2 26 GHz Pentium 4 processor 2 60 2 50 2 40 2 20 2A 400 MHz 512 KB 1 80A and 1 60A GHz Pentium 4 processor 2 1 90 1 80 1 70 1 60 400 MHz 256 KB 1 50 and 1 40 GHz Celeron processor 1 80 and 1 70 GHz 400 MHz 128 KB 2 INTEGRATOR S NOTES e Use only ATX12V compliant power supplies with the Desktop Board D845GEBV2 and only ATX12V or SFX12V compliant power supplies with the Desktop Board D845GERG2 ATX12V and SFX12V power supplies have an additional power lead that provides required supplemental power for the processor Always connect the 20 pin and 4 pin leads of ATX12V and SFX12V power supplies to the corresponding connectors on the desktop board otherwise the board will not boot Do not use a standard ATX power supply The board will not boot with a standard ATX power supply e Refer to Table 7 on page 25 for a list of supported system bus frequency and memory speed combinations For information about Refer to Processor su
52. anel power sleep message waiting LED Table 39 B Front panel Table 36 C Front panel USB Table 35 Figure 17 External I O Connectors Table 35 Front Panel USB Connector Pin Signal Name Pin Signal Name 1 USB_FNT_PWR USB_FNT_PWR 3 USB_FNTA USB_FNTB 5 USB_FNTA 6 USB_FNTB 7 Ground 8 Ground 9 Key 10 USB_FP_OC USB front panel overcurrent signal 2 INTEGRATOR S NOTE Use only a front panel USB connector that conforms to the USB 2 0 specification for high speed USB devices 69 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 2 8 3 1 Front Panel Connector This section describes the functions of the front panel connector Table 36 lists the signal names of the front panel connector Table 36 Front Panel Connector Pin Signal In Out Description Pin Signal In Out Description Hard Drive Activity LED Power LED 1 HD_PWR out Hard disk LED pull up 2 HDR_BLNK_ Out Front panel green 330 Q to 5 V GRN LED 3 HAD Out Harddisk active LED 4 HDR_BLNK_ Out Front panel yellow YEL LED Reset Switch l On Off Switch 5 Ground Ground 6 SWITCH_ON In Power switch FP_RESET In Reset switch 8 Ground Ground 5V Out Power 10 INC Not connected Hard Drive Power Activity LED LED Reset Power Switch Switch 5 VDC NIC OM14561 2 8 3 1 1 Hard Drive A
53. ange a Supervisor Password Supervisor or Supervisor or and user set options limited number Enter Password user user of options Note If no password is set any user can change all Setup options For information about Refer to Setting user and supervisor passwords Section 4 4 10 page 112 4 BIOS Setup Program What This Chapter Contains G Gu le ite e Tee EE 95 4 2 Maintenance Menu 96 d MainsM nUte iscicds ested eee cee te EE EE eet as 97 AA Advanced Men 98 45 Te AE EE 113 E Power MOU eenia a Gan a a aaaea a a a a aaa a oe 114 AT E E EE LAO FE EE EE E 115 4g Ext MENU anosa a ceo a a acto e a poten A 118 4 1 Introduction The BIOS Setup program can be used to view and change the BIOS settings for the computer The BIOS Setup program is accessed by pressing the lt F2 gt key after the Power On Self Test POST memory test begins and before the operating system boot begins The menu bar is shown below Maintenance Main Advanced Security Power Boot Exit Table 51 lists the BIOS Setup program menu features Table 51 BIOS Setup Program Menu Bar Maintenance Main Advanced Security Power Boot Exit Clears Allocates Configures Sets Configures Selects boot Saves or passwords and resources for advanced passwords power options and discards BIS credentials hardware features and security management power supply changes to and enables components available features features controls Setup
54. ates and Targeted System Power 46 16 Wake up Devices and BVGNIS eeetiegeh Eege EE tee 47 17 Fan Connector Function Operation for Desktop Boards with a Hardware Monitoring ASIC a eadaadas E 48 viii 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 51 52 54 55 56 57 59 60 61 62 63 64 Contents Fan Connector Function Operation for Desktop Boards with a Hardware Monitoring and Fan Control AGINN 49 System Memory E E 53 ee 54 WI le 55 PCI Configuration Space Map cci scesicisvivivedii Ha cain ENNEN ENEE eben 55 IECH eege EE Eegen 56 PCI Interrupt Routing Map EE 58 Front Panel Audio Connector sciccacscticteccteasseecetdidix baesetateee kinder 64 getruede Ee 64 Rear Chassis Fan Connector EE 64 ATAPI CD ROM Connector eege 64 ATXI2V Power Ree EE 65 Processor Fan Connector aeisi eee 65 Main POWER EDEGEM tenant aed 66 Chassis Egeter Ee 66 Front Chassis Fan ConmeCtor sscs icesaes ieuaindsiicasetaiieadileiaceestaedicds AER eet 66 SCSI TEED CGONNECTOT eedb eendeitege egeegeeeedee 68 Front Panel USB ena 69 Front Panel Connector ee Meed 70 States for a One Color Power LED 71 states for a Two Color Power LED 1icc tcicscenivescetshceangeahuevedes EE NER EENEG NENNEN AE 71 Auxiliary Front Panel Power Sleep Message Waiting LED Connector 71 Front Panel Audio Connector Jumper Block 73 BIOS Setup Config
55. ble 31 Main Power Connector Pin Signal Name Pin Signal Name 1 3 3 V 11 3 3 V 2 3 3 V 12 12 V 3 Ground 13 Ground 4 5 V 14 PS ON power supply remote on off 5 Ground 15 Ground 6 5 V 16 Ground 7 Ground 17 Ground 8 PWRGD Power Good 18 No connect 9 5 V Standby 19 5 V 10 12 V 20 5 V Table 32 Chassis Intrusion Connector Pin Signal Name 1 Intruder 2 Ground Table 33 Front Chassis Fan Connector Pin Signal Name 1 Note 2 AON 3 Notez Notes 1 Pin 1 is Control if the Desktop Board uses the hardware monitoring and fan control ASIC Pin 1 is Ground if the Desktop Board uses the hardware monitoring ASIC 2 Pin 3 is FRONT_TACH_OUT if the Desktop Board uses the hardware monitoring and fan control ASIC Pin 3 is No connect if the Desktop Board uses the hardware monitoring ASIC Technical Reference 2 8 2 3 Add in Board and Peripheral Interface Connectors Figure 15 shows the location of the add in board connector and peripheral connectors for the Desktop Board D845GEBV2 Note the following considerations for the PCI bus connectors for both Desktop Boards e All of the PCI bus connectors are bus master capable e SMBus signals are routed to PCI bus connector 2 This enables PCI bus add in boards with SMBus support to access sensor data on the Desktop Board The specific SMBus signals are as follows The SMBus clock line is connected to pin A40 The SMBus data line is
56. ccess this menu select Advanced on the menu bar and then Chipset Configuration Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration Fan Control Configuration The submenu represented in Table 65 is for configuring the chipset options Table 65 Chipset Configuration Submenu Feature Options Description ISA Enable Bit e Enabled default When set to Enable a PCI to PCI bridge will only e Disabled recognize I O addresses that do not alias to an ISA range within the bridge s assigned I O range PCI Latency Timer e 32 default Allows you to control the time in PCI bus clock e 64 cycles that an agent on the PC bus can hold the bus e 96 when another agent has requested the bus e 128 e 160 e 192 e 224 e 248 Extended Configuration e Default default Allows the setting of extended configuration options e User Defined SDRAM Frequency e Auto default Allows override of detected memory frequency value e 266 MHz NOTE If SDRAM Frequency is changed you must e 333 MHz reboot for the change to take effect After changing this setting and rebooting the System Memory Speed parameter in the Main menu will reflect the new value SDRAM Timing Control e Auto default Auto Timings will
57. ce 2 8 Connectors A CAUTION Only the back panel USB front panel USB VGA and PS 2 connectors of the Desktop Boards D845GEBV2 and D845GERG2 have overcurrent protection The Desktop Boards internal connectors are not overcurrent protected and should connect only to devices inside the computer s chassis such as fans and internal peripherals Do not use these connectors to power devices external to the computer s chassis A fault in the load presented by the external devices could cause damage to the computer the interconnecting cable and the external devices themselves This section describes the Desktop Board s connectors The connectors can be divided into these groups e Back panel I O connectors see page 60 PS 2 keyboard and mouse USB four ports Parallel port Serial port A LAN optional Audio line out line in and mic in e Internal I O connectors see page 61 Audio auxiliary line input ATAPI CD ROM and front panel audio Fans Power Add in boards PCI and AGP CNR optional IDE Diskette drive SCSI LED Chassis intrusion e External I O connectors see page 69 Front panel USB one connector for two ports Auxiliary front panel power sleep message waiting LED Front panel power sleep message waiting LED power switch hard drive activity LED reset switch and auxiliary front panel power LED gt NOTE When installing the D845GER
58. configuration mode setting information Table 53 Maintenance Menu Feature Options Description Clear All Passwords e Ok default Clears the user and supervisor passwords e Cancel Clear BIS Credentials e Ok default Clears the Wired for Management Boot Integrity Service BIS e Cancel credentials CPU Stepping No options Displays CPU s Stepping Signature Signature CPU Microcode No options Displays CPU s Microcode Update Revision Update Revision 96 BIOS Setup Program 4 3 Main Menu To access this menu select Main on the menu bar at the top of the screen Maintenance Main Advanced Security Power Boot Exit Table 54 describes the Main menu This menu reports processor and memory information and is for configuring the system date and system time Table 54 Main Menu Feature Options Description BIOS Version No options Displays the version of the BIOS Processor Type No options Displays processor type Hyper Threading e Disabled Disables enables Hyper Threading Technology This Technology e Enabled default option is present only when a processor that supports Hyper Threading Technology is installed Processor Speed No options Displays processor speed System Bus Speed No options Displays the system bus speed System Memory No options Displays the system memory speed Speed Cache RAM No options Displays the size of second level cache Total
59. connected to pin A41 Zloooooooog onn 40 7 Wooo ooo ooooooo 00000 39 2foo00o0000 oooooooooo 40 2 oo0000000000R0000 34 4 Mopooonoopopnooopooog 39 fe _ooooo0o0000000133 OM13579 Item Description Item Description A CNR optional G PCI bus connector 1 B PCI bus connector 6 H AGP connector C PCI bus connector 5 l Diskette drive D PCI bus connector 4 J Primary IDE E PCI bus connector 3 K Secondary IDE F PCI bus connector 2 L SCSI LED Figure 15 D845GEBV2 Add in Board and Peripheral Interface Connectors Figure 16 shows the location of the add in board connector and peripheral connectors for the Desktop Board D845GERG2 67 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification AB COD E Geb Wi E EE 8 GC lj lj EEN o ef i i l I 1 l H l l de O UE EE 1 2 o00000000 oan 40
60. ction 1 5 Add in boards that also support this specification can participate in power management and can be used to wake the computer The use of Instantly Available PC technology requires operating system support and PCI 2 2 compliant add in cards and drivers Product Description 1 14 2 5 5 V Standby Power Indicator LED The 5 V standby power indicator LED shows that power is still present even when the computer appears to be off Figure 11 shows the location of the standby power indicator LED on the D845GEB V2 board A CAUTION If AC power has been switched off and the standby power indicator is still lit disconnect the power cord before installing or removing any devices connected to the board Failure to do so could damage the board and any attached devices cl Le OM13582 Figure 11 Location of the Standby Power Indicator LED on the D845GEBV2 Board 1 14 2 6 Resume on Ring The operation of Resume on Ring can be summarized as follows e Resumes operation from ACPI S1 or S3 states e Detects incoming call similarly for external and internal modems e Requires modem interrupt be unmasked for correct operation 51
61. ctivity LED Connector Pins 1 and 3 can be connected to an LED to provide a visual indicator that data is being read from or written to a hard drive For the LED to function properly an IDE drive must be connected to the onboard IDE interface The LED will also show activity for devices connected to the SCSI hard drive activity LED connector For information about Refer to The SCSI hard drive activity LED connector Section 1 8 3 2 page 34 2 8 3 1 2 Reset Switch Connector Pins 5 and 7 can be connected to a momentary SPST type switch that is normally open When the switch is closed the Desktop Board resets and runs the POST 70 Technical Reference 28313 Power Sleep Message Waiting LED Connector x Pins 2 and 4 can be connected to a one or two color LED Table 37 shows the possible states for a one color LED Table 38 shows the possible states for a two color LED Table 37 States for a One Color Power LED LED State Description Off Power off sleeping Steady Green Running Blinking Green Running message waiting Table 38 States for a Two Color Power LED LED State Description Off Power off Steady Green Running Blinking Green Running message waiting Steady Yellow Sleeping Blinking Yellow Sleeping message waiting INTEGRATOR S NOTE To use the message waiting function ACPI must be enabled in the operating system and a message capturing application must be invoked 2
62. curity Power Boot Exit Boot Device Priority Hard Disk Drives Removable Devices ATAPI CD ROM Drives The submenu represented in Table 74 is for setting ATAPI CD ROM drive priority Table 74 ATAPI CD ROM Drives Submenu Feature Options Description 1 ATAPI CDROM Dependent on installed Specifies the boot sequence from the available Note ATAPI CD ROM drives ATAPI CD ROM drives To specify boot sequence 1 Select the boot device with lt T gt or lt gt 2 Press lt Enter gt to set the selection as the intended boot device Note This boot device submenu appears only if at least one boot device of this type is installed This list will display up to four ATAPI CD ROM drives the maximum number of ATAPI CD ROM drives supported by the BIOS 4 8 Exit Menu To access this menu select Exit from the menu bar at the top of the screen Maintenance Main Advanced Security Power Boot Exit The menu represented in Table 75 is for exiting the BIOS Setup program saving changes and loading and saving defaults Table 75 Exit Menu Feature Description Exit Saving Changes Exits and saves the changes in CMOS SRAM Exit Discarding Changes Exits without saving any changes made in the BIOS Setup program Load Optimal Defaults Loads the optimal default values for all the Setup options Load Custom Defaults Loads the custom defaults for Setup options Save Custom Defaults Saves the current values as custom de
63. cution In these WORD checkpoints the low byte of the checkpoint is the system BIOS checkpoint from which the control is passed to the different bus routines The high byte of the checkpoint is the indication of which routine is being executed in the different buses Table 81 describes the upper nibble of the high byte and indicates the function that is being executed Table 81 Upper Nibble High Byte Functions Value N On Oo AJ Ww Mil OH Description func 0 disable all devices on the bus concerned func 1 static devices init on the bus concerned func 2 output device init on the bus concerned func 3 input device init on the bus concerned func 4 IPL device init on the bus concerned func 5 general device init on the bus concerned func 6 error reporting for the bus concerned func 7 add on ROM init for all buses 125 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification Table 82 describes the lower nibble of the high byte and indicates the bus on which the routines are being executed Table 82 Lower Nibble High Byte Functions Value Description Generic DIM Device Initialization Manager On board System devices ISA devices EISA devices ISA PnP devices PCI devices Olio N OH 5 4 Speaker A 47 Q inductive speaker is mounted on the Desktop Board D845GEB V2 and the Desktop Board D845GERG2 The speaker provides audible error code beep code information during POST For inf
64. da Limits and methods of measurement of Radio Interference Characteristics of Information Technology Equipment European Union EN55024 1998 Information Technology Equipment Immunity Characteristics Limits and methods of measurement European Union AS NZS 3548 Class B Australian Communications Authority Standard for Electromagnetic Compatibility Australia and New Zealand CISPR 22 3 Edition Class B Limits and methods of measurement of Radio Disturbance Characteristics of Information Technology Equipment International CISPR 24 1997 Information Technology Equipment Immunity Characteristics Limits and Methods of Measurements International 85 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 2 15 3 Product Certification Markings Board Level 86 The Desktop Boards D845GEBV2 and D845GERG2 have the following product certification markings e UL joint US Canada Recognized Component mark Consists of lower case c followed by a stylized backward UR and followed by a small US Includes adjacent UL file number for Intel Desktop Boards E210882 component side e FCC Declaration of Conformity logo mark for Class B equipment to include Intel name and D845GEB V2 and D845GERG2 model designation solder side e CE mark Declaring compliance to European Union EU EMC directive 89 336 EEC and Low Voltage directive 73 23 EEC component side The CE mark should also be on
65. e 7 lists the supported system bus frequency memory speed configurations Table 7 Supported System Bus Frequency Memory Speed Combinations To use this type of DIMM DDR333 DDR266 533 MHz 533 MHz or 400 MHz The processor s system bus frequency must be 25 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 1 8 Intel 845GE Chipset The Intel 845GE chipset consists of the following devices e Intel 82845GE Graphics and Memory Controller Hub GMCH with Accelerated Hub Architecture AHA bus e Intel 82801DB I O Controller Hub ICH4 with AHA bus e Firmware Hub FWH The GMCH is a centralized controller for the system bus the memory bus the AGP bus and the Accelerated Hub Architecture interface The ICH4 is a centralized controller for the board s I O paths The FWH provides the nonvolatile storage of the BIOS The component combination provides the chipset interfaces as shown in Figure 6 UDMA 33 ATA 66 100 es lt System Bus _ USB gt e BADGE Chipset y y Y 82845GE 82801DB E Graphics and AHA 4 Mbit Firmware Memory Controller Bus it SC SN SR A Hub FWH Hub GMCH Display A d A A A Interface sas DDR LPC Bus Interface SDRAM SMBus PCI Bus AC Link Bus v v v v v M OM14832 Figure 6 Intel 845GE Chipset Block Diagram For information about Refer to The Intel 845GE chips
66. e 77 defines the uncompressed INIT code checkpoints Table 78 describes the boot block recovery code checkpoints and Table 79 lists the runtime code uncompressed in F000 shadow RAM Some codes are repeated in the tables because that code applies to more than one operation Table 77 Uncompressed INIT Code Checkpoints Code Description of POST Operation DO NMI is Disabled Onboard KBC RTC enabled if present Init code Checksum verification starting D1 Keyboard controller BAT test CPU ID saved and going to 4 GB flat mode D3 Do necessary chipset initialization start memory refresh and do memory sizing D4 Verify base memory D5 Init code to be copied to segment 0 and control to be transferred to segment 0 D6 Control is in segment 0 To check recovery mode and verify main BIOS checksum If either it is recovery mode or main BIOS checksum is bad go to check point EO for recovery else go to check point D7 for giving control to main BIOS D7 Find Main BIOS module in ROM image D8 Uncompress the main BIOS module D9 Copy main BIOS image to F000 shadow RAM and give control to main BIOS in F000 shadow RAM Table 78 Boot Block Recovery Code Checkpoints Code Description of POST Operation EO Onboard Floppy Controller if any is initialized Compressed recovery code is uncompressed in F000 0000 in Shadow RAM and give control to recovery code in F000 Shadow RAM Initialize interrupt vector tables initialize system timer i
67. eca EE E Aaaa eee 11 Wee CECR cen eeeauu tae ne ena ee ear weer cee 12 1 2 1 Feature Summary neei eee ates e e oh ted Acne a ea Card ae 12 1 2 2 Manufacturing Options E 13 1 2 3 Board Layouts eessen ee ee te edo a 14 1 2 4 Block Diagrams mirr Areeiro EE Re edad ads Ned 17 EC W aide Ee EE 19 1 4 Operating System Support ed Geacec ANERE ENEE SEENEN habeas aed db ENEE eee 19 1 5 Design Specifications s tega ept a ia Ae a hase eee 20 AsO ee 23 L System Memory irise dee eg 24 1 8 intel BAS GE Chp EE 26 1 8 1 Intel 845GE Graphics Subsystem AEN 27 1 8 2 TT EE 33 1 8 3 ai ele 9 Miner arene tn eter en TEA eer revere areata E ae fei nero rete 34 1 8 4 Real Time Clock CMOS SRAM and Batten 35 1 9 MO COntroler eege 35 1 9 1 Serial Por Aeae aie Ee e Ee gen 35 1 9 2 Parallel EIER ee alah EE E Eed 35 1 9 3 Diskette Drive Controller iiss sosencicstvz cospsevzecisatee decpdeutaantacen coupsdencdidaceaaneeedeen cis 36 1 9 4 Keyboard and Mouse Interface AEN 36 TAO Audio SUS V STON sc tiene racic HSN ok acl de a ies et aah ra ected ents Medea 37 1 10 11 Audio COnnectorS 12 5 EE ee 38 1 10 2 Audio Subsystem Software ccc c ceissecsetsipenneiss haeeiene dee Gene des ee 38 1 11 LAN Subsystem Optional ET 39 1 11 1 Intel 82562ET Platform LAN Connect Device c cccccceeseeseeeeseeeteeteeeeees 39 1 11 2 Intel 82540EM Gigabit Ethernet Controller cccccccccceeseecseeseeeeseeesseeeees 39 1 11 3 RJ 45 LAN Connector with Integrat
68. ectual property rights that relate to the presented subject matter The furnishing of documents and other materials and information does not provide any license express or implied by estoppel or otherwise to any such patents trademarks copyrights or other intellectual property rights Intel products are not intended for use in medical life saving or life sustaining applications or for any other application in which the failure of the Intel product could create a situation where personal injury or death may occur Intel may make changes to specifications product descriptions and plans at any time without notice The Intel Desktop Boards D845GEBV2 and D845GERG2 may contain design defects or errors known as errata that may cause the product to deviate from published specifications Current characterized errata are available on request Contact your local Intel sales office or your distributor to obtain the latest specifications before placing your product order Copies of documents which have an ordering number and are referenced in this document or other Intel literature may be obtained from Intel Corporation P O Box 5937 Denver CO 80217 9808 or call in North America 1 800 548 4725 Europe 44 0 1793 431 155 France 44 0 1793 421 777 Germany 44 0 1793 421 333 other countries 708 296 9333 Intel Pentium Celeron and LANDesk are registered trademarks of Intel Corporation or its subsidiaries in the United States and other coun
69. ed LAN Media Access Controller and a physical layer interface device Features of the LAN subsystem include PCI Bus Master interface CSMA CD Protocol Engine Serial CSMA CD unit interface that supports the 82562ET 10 100 Mbit sec Ethernet on the CNR bus PCI Power Management Supports ACPI technology Supports LAN wake capabilities The Desktop Board D845GERG2 supports a Gigabit Ethernet Controller option described below 1 11 1 Intel 82562ET Platform LAN Connect Device The Intel 82562ET component provides an interface to the back panel RJ 45 connector with integrated LEDs This physical interface may alternately be provided through the CNR connector The Intel 82562ET provides the following functions 1 11 2 Basic 10 100 Ethernet LAN connectivity Supports RJ 45 connector with status indicator LEDs on the back panel Full device driver compatibility ACPI support Programmable transit threshold Configuration EEPROM that contains the MAC address Intel 82540EM Gigabit Ethernet Controller The Intel 82540EM Gigabit Ethernet Controller available only on the Desktop Board D845GERG2 provides the following functions Gigabit Ethernet MAC and PHY layer functions in a single component Basic 10 100 1000 Ethernet LAN connectivity Integrated PHY for 10 100 1000 Mbit sec full and half duplex operation Supports RJ 45 connector with status indicator LEDs on the back panel ACPI support Configuration EEPROM that contains
70. ed LEDS eecceeeeeeeeeeeeeeeettteeeeeeees 39 1 11 4 LAN Subsystem Software cscicgis cosets eanedsivesixtaictis eenigis hiaeiel aie eevee 40 2 ACNE ODO cake tee EE 40 3 Hardware Management Gubevysiem eter eeeeeecaaeeeeeeeeeeeaaeeeeeeeeeteeeeas 42 1 13 1 Hardware Monitoring Ale ENEE 42 113 2 Parrot g eege 44 1 13 3 Chassis Intrusion and Deiechon 44 hl Power Miete Eege 44 VTA A eerste eege eege 45 114 2 Hardware Support eege eee ie eee 47 2 Technical Reference Sch OCMC NO ege EE 53 Zee MeMO sires os ed Moat a ease ge fata da cen adieu deed sata edad eee caa imate ennui 53 SS Fixed VO Klammen Sege geet Bale he et ee ee a e 54 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification vi 2A DMA enne getest Eege i escent ani aie eee cele 55 2 5 PCI Configuration Space Map ics cescic esas ce e sde Qi ees cle teen gege Deanne eee 55 E e En Te 56 27 PGLIMErrupt Routing let eters utes EE EE bare Medea tele 57 2 8 CONNECTS serai a e a e E EH 59 2 8 1 Back Panel CONnMGCtors sri ea aaa a Ea E Ra 60 2 8 2 Internal VO Connectors micri A e 61 2 8 3 External e Ree e 69 2 9 J mp r BIOCKS senimi a EE EE EEKE K iR 72 2 9 1 Front Panel Audio Connector Jumper Block 72 2 9 2 BIOS Setup Configuration Jumper Block 73 2 10 Mechanical Emtee Eege 74 2 10 1 D845GEBV2 Form Factor isis teenie dececedietouocedescuedestete denned tacnpdoeuedetaavensodeecanes 74 210 2 DS45GERG2 Fonn Factor cise dct ete dees 75
71. el audio connector Q Speaker C Auxiliary line in connector R Battery D Intel 82562ET 10 100 Mbit sec PLC device Optional S SCSI LED connector E Rear chassis fan connector T Chassis intrusion connector F ATAPI CD ROM connector U Front chassis fan connector G Back panel connectors V BIOS Setup configuration jumper block H 12V power connector ATX12V W Auxiliary front panel power LED connector mPGA478 processor socket X 4 Mbit Firmware Hub FWH J Processor fan connector Y Front panel connector K Intel 82845GE Graphics and Memory Controller Hub Z Intel 82801DB I O Controller Hub ICH4 GMCH L DIMM sockets AA Front panel USB connector M I O Controller BB AGP connector N Power connector CC PCI bus add in card connectors O Diskette drive connector DD CNR connector optional Figure 2 Desktop Board D845GERG2 Components 15 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification Figure 3 shows the location of the major components on the Desktop Board D845GERG2 that includes the Gigabit Ethernet LAN option The callouts in Figure 2 and Figure 3 are identical except as follows In Figure 3 the auxiliary line in connector callout C has been moved In Figure 3 callout D highlights the Intel 82540EM Gigabit Ethernet LAN Controller OZ ST zt TO mm 0 OD DS
72. enu select Advanced on the menu bar and then Event Log Configuration Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration Fan Control Configuration The submenu represented by Table 62 is used to configure the event logging features Table 62 Event Log Configuration Submenu Feature Options Description Event Log No options Indicates if there is space available in the event log View Event Log Enter Displays the event log Clear All Event Logs e Ok default Clears the event log after rebooting e Cancel Mark Events As Read e Ok default Marks all events as read e Cancel 107 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 4 4 7 Video Configuration Submenu 108 To access this menu select Advanced on the menu bar and then Video Configuration Maintenance Main Advanced Security PCI Configuration Power Boot Exit Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration Fan Control Configuration The submenu represented in Table 63 is for configuring the video feat
73. escribes the Desktop Boards compliance with U S and international safety and electromagnetic compatibility EMC regulations 2 15 1 Safety Regulations Table 47 lists the safety regulations the Desktop Boards D845GEBV2 and D845GERG2 comply with when correctly installed in a compatible host system Table 47 Safety Regulations Regulation Title CSA C22 2 No 60950 Bi National Standard for Safety of Information Technology Equipment UL 60950 3 Edition 2000 including Electrical Business Equipment USA and Canada EN 60950 2 Edition 1992 The Standard for Safety of Information Technology Equipment including with Amendments 1 2 3 and 4 Electrical Business Equipment European Union IEC 60950 2 Edition 1991 The Standard for Safety of Information Technology Equipment including with Amendments 1 2 3 and 4 Electrical Business Equipment International EMKO TSE 74 SEC 207 94 Summary of Nordic deviations to EN 60950 Norway Sweden Denmark and Finland 2 15 2 EMC Regulations Table 48 lists the EMC regulations the Desktop Boards D845GEBV2 and D845GERG2 comply with when correctly installed in a compatible host system Table 48 EMC Regulations Regulation Title FCC Class B Title 47 of the Code of Federal Regulations Parts 2 and 15 Subpart B Radio Frequency devices USA ICES 003 Class B EN55022 1998 Class B Interference Causing Equipment Standard Digital Apparatus Cana
74. et http developer intel com Resources used by the chipset Chapter 2 26 1 8 1 Product Description Intel 845GE Graphics Subsystem The Intel 845GE chipset contains two separate mutually exclusive graphics options Either the Intel Extreme Graphics controller contained within the 82845GE GMCH is used or an AGP add in card can be used When an AGP add in card is installed the Intel Extreme Graphics controller is disabled 1 8 1 1 Intel Extreme Graphics Controller The Intel Extreme Graphics controller features the following Integrated graphics controller 32 bpp Bits Per Pixel graphics engine 266 MHz core frequency 256 bit internal data path for 2 D and 3 D graphics Motion video acceleration 3 D graphics visual and texturing enhancement Display Integrated 24 bit 350 MHz RAMDAC DDC2B compliant interface Video Dual monitor synchronous display Hardware motion compensation for software MPEG2 decode Two multiplexed DVO port interfaces with 165 MHz pixel clocks using an AGP Digital Display ADD card Dynamic Video Memory Technology DVMT support up to 64 MB For information about Refer to DVMT Section 1 8 1 2 page 31 SE INTEGRATOR S NOTE EMC emission testing of high speed video was performed on this Desktop Board using scrolling H s displayed on the video monitor in accordance with ANSI C63 4 2000 documentation The scrolling H s are displayed using the follow
75. eveloper specs sfx sfx12v pdf May 2001 Intel Corporation SMBIOS UHCI USB WIM System Management BIOS Interface Design Guide Universal Serial Bus Specification Baseline Version 2 3 1 Universal Host Controller Wired for Management http www dmif org download standards DSP0119 pdf March 16 1999 American Megatrends Incorporated Award Software International Incorporated Compaq Computer Corporation Dell Computer Corporation Hewlett Packard Company Intel Corporation International Business Machines Corporation Phoenix Technologies Limited and SystemSoft Corporation Revision 1 1 March 1996 Intel Corporation http www usb org developers docs html Revision 2 0 April 27 2000 Compaq Computer Corporation Hewlett Packard Company Lucent Technologies Inc Intel Corporation Microsoft Corporation NEC Corporation and Koninklijke Philips Electronics N V http www usb org developers docs html Version 2 0 December 18 1998 Intel Corporation http www intel com labs manage wfm wfmspecs htm Product Description 1 6 Processor gt NOTE Refer to Thermal Considerations Section 2 12 page 81 for important information when using an Intel Pentium 4 processor operating above 2 80 GHz with this Intel desktop board A CAUTION Use only the processors listed below Use of unsupported processors can damage the board the processor
76. extended through the program configuration chipset options mode For information about Refer to Boot Integrity Services BIS Section 1 5 page 20 NOTE In this chapter all examples of the BIOS Setup program menu bar include the maintenance menu however the maintenance menu is displayed only when the Desktop Board is in configuration mode Section 2 9 2 on page 73 tells how to put the Desktop Board in configuration mode 95 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification Table 52 lists the function keys available for menu screens Table 52 BIOS Setup Program Function Keys BIOS Setup Program Function Key Description lt gt Or lt gt Selects a different menu screen Moves the cursor left or right lt T gt or lt gt Selects an item Moves the cursor up or down lt Tab gt Selects a field Not implemented lt Enter gt Executes command or selects the submenu lt F9 gt Load the default configuration values for the current menu lt F10 gt Save the current values and exits the BIOS Setup program lt Esc gt Exits the menu 4 2 Maintenance Menu To access this menu select Maintenance on the menu bar at the top of the screen Maintenance Main Advanced Security Power Boot Exit The menu shown in Table 53 is for clearing Setup passwords and enabling extended configuration mode Setup only displays this menu in configuration mode See Section 2 9 2 on page 73 for
77. f Less than four seconds Power on ACPI G2 G5 Soft off ACPI GO working state On Less than four seconds Soft off Standby ACPI GO working state ACPI G1 sleeping state On More than four seconds Fail safe power off ACPI GO working state ACPI G2 G5 Soft off Sleep Less than four seconds Wake up ACPI G1 sleeping state ACPI GO working state Sleep More than four seconds Power off ACPI G1 sleeping state ACPI G2 G5 Soft off For information about Refer to The Desktop Boards compliance level with ACPI Section 1 5 page 20 45 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 1 14 1 1 System States and Power States Under ACPI the operating system directs all system and device power state transitions The operating system puts devices in and out of low power states based on user preferences and knowledge of how devices are being used by applications Devices that are not being used can be turned off The operating system uses information from applications and user settings to put the 46 system as a whole into a low power state Table 15 lists the power states supported by the Desktop Boards D845GEBV2 and D845GERG2 along with the associated system power targets See the ACPI specification for a complete description of the various system and power states Table 15 Power States and Targeted System Power Processor Global States Sleeping States States
78. faults Normally the BIOS reads the Setup values from flash memory If this memory is corrupted the BIOS reads the custom defaults If no custom defaults are set the BIOS reads the factory defaults Discard Changes Discards changes without exiting Setup The option values present when the computer was turned on are used 118 5 Error Messages and Beep Codes What This Chapter Contains 5 1 BIOS Error Messages 5 2 Port 80h POST Codes 5 3 Bus Initialization Checkpoints 5 4 Speaker 5 5 BIOS Beep Codes 0000 n 5 1 BIOS Error Messages Table 76 lists the error messages and provides a brief description of each Table 76 BIOS Error Messages Error Message Explanation GA20 Error Pri Master HDD Error Pri Slave HDD Error Sec Master HDD Error Sec Slave HDD Error An error occurred with Gate A20 when switching to protected mode during the memory test Could not read sector from corresponding drive Pri Master Drive ATAPI Incompatible Pri Slave Drive ATAPI Incompatible Sec Master Drive ATAPI Incompatible Sec Slave Drive ATAPI Incompatible A Drive Error Cache Memory Bad Corresponding drive in not an ATAPI device Run Setup to make sure device is selected correctly No response from diskette drive An error occurred when testing L2 cache Cache memory may be bad CMOS Battery Low The battery may be losing power Replace the battery soon CMOS Display
79. figurations e TV Out e Transition Minimized Differential Signaling TMDS e Low Voltage Differential Signaling LVDS e Single device operating in dual channel mode S INTEGRATOR S NOTES e Synchronous display is not supported when one of the display devices is a TV e Digital Visual Interface DVI support is present only when an ADD card is installed 32 1 8 2 USB Product Description The Desktop Boards support up to six USB 2 0 ports and fully support UHCI and EHCI and use UHCI and EHCI compatible drivers For more than six USB devices an external hub can be connected to any of the ports The ICH4 provides the USB controller for all ports as shown in Figure 7 The port arrangement is as follows e Two ports are implemented with stacked back panel connectors adjacent to the PS 2 connectors e Two ports are implemented with stacked back panel connectors adjacent to the audio connectors e Two ports are routed to the front panel USB connector USB USB ports 2 82801DB UO Controller Hub lt USB _ USB ports 2 ICH4 USB USB ports 2 Back panel USB connectors adjacent to the PS 2 ports Back panel USB connectors adjacent to the audio connectors Front panel USB connectors OM14260 Figure 7 USB Port Configuration gt NOTE Computer systems that have an unshielded cable attached to a USB port may not meet FCC Class B requirements even if no device is a
80. for setting boot devices priority Table 71 Boot Device Priority Submenu Feature Options Description 1 Boot Device e Removable Dev Specifies the boot sequence according to the device type 2 Boot Device e Hard Drive The computer will attempt to boot from up to five devices as specified here Only one of the devices can be an IDE rd P SS GE SR SE HN hard disk drive To specify boot sequence Sr BooL Device GE Boot Aden 1 Select the boot device with lt T gt or lt J gt e Disabled 2 Press lt Enter gt to set the selection as the intended boot device The default settings for the first through fourth boot devices are respectively e Removable Dev e Hard Drive e ATAPI CD ROM e Intel Boot Agent Note The boot device identifier for Intel Boot Agent IBA may vary depending on the BIOS release BIOS Setup Program 4 7 2 Hard Disk Drives Submenu To access this menu select Boot on the menu bar and then Hard Disk Drives Maintenance Main Advanced Security Power Boot Exit Boot Device Priority Hard Disk Drives Removable Devices ATAPI CD ROM Drives The submenu represented in Table 72 is for setting hard disk drive priority Table 72 Hard Disk Drives Submenu Feature Options Description 17 Hard Disk Drive Dependent on installed Specifies the boot sequence from the available hard Note hard drives disk drives To specify boot sequence 1 Select the boot device with lt
81. g INTA is plugged into PCI bus connector 3 In PCI bus connector 3 INTA is connected to PIRQC which is already connected to the ICH4 USB The add in card in PCI bus connector 3 now shares an interrupt with the onboard interrupt source 57 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification Table 24 PCI Interrupt Routing Map ICH4 PIRQ Signal Name PCI Interrupt Source PIRQA PIRQB PIRQC PIRQD PIRQE PIRQF PIRQG PIRQH AGP connector INTA INTE ICH4 USB UHCI controller 1 INTA SMBus controller INTB oo o ICH4 USB UHCI controller 2 NTB AC 97 ICH4 Audio Modem INTB ooo ooo ICH4 LAN dist INTA ICH4 USB UHCI controller 3 INTC ICH4 USB 2 0 EHCI controller a PCI bus connector 1 En Ree INTD INTA PCI bus connector 2 oo o INTC INTB PCI bus connector 3 INTD INTC PCI bus connector 4 Note INTC PCI bus connector 5 Note INTC INTA ooo foo INTD PCI bus connector 6 Note INTA INTB INTD Note Desktop Board D845GEBV2 only gt NOTE In PIC mode the ICH4 can connect each PIRQ line internally to one of the IRQ signals 3 4 5 6 7 9 10 11 12 14 and 15 Typically a device that does not share a PIRQ line will have a unique interrupt However in certain interrupt constrained situations it is possible for two or more of the PIRQ lines to be connected to the same IRQ signal Refer to Table 23 for the allocation of PIRQ lines to IRQ signals in APIC mode 58 Technical Referen
82. gn Guide Version 1 1 see Section 1 5 on page 20 for specification information Table 42 Power Usage DC Current at Mode AC Power 3 3V 5V 412V EU 5 VSB ACPI S0 163 0W 568A 152A 724A 67mA 39 mA ACPI S1 93 0W 404A 051A 275A 38mA 152mA ACPI 3 3 6 W OA OmA OA OmA 370 mA ACPI Sp 3 1W OA OmA OA OmA 290 mA The Desktop Boards D845GEBV2 and D845GERG2 are designed to provide 2 A average of 5 V current for each add in board The total 5 V current draw for add in boards is as follows e Fora fully loaded Desktop Board D845GEB V2 all seven expansion slots filled the total 5 V current draw must not exceed 14 A e Fora fully loaded Desktop Board D845GERG2 all four expansion slots filled the total 5 V current draw must not exceed 8 A Technical Reference 2 11 3 Standby Current Requirements A CAUTION If the standby current necessary to support multiple wake events from the PCI and or USB buses exceeds power supply capacity the Desktop Boards D845GEBV2 and D845GERG2 may lose register settings stored in memory etc Calculate the standby current requirements using the steps described below Power supplies used with the Desktop Boards D845GEB V2 and D845GERG2 must be able to provide enough standby current to support the Instantly Available PC ACPI S3 sleep state configuration as outlined in Table 43 below Values are determined by specifications such as PCI 2 2 Actual measured values may vary
83. gs and require a specialized cable to reduce reflections noise and inductive coupling The IDE interfaces also support ATAPI devices such as CD ROM drives and ATA devices using the transfer modes listed in Section 4 4 4 1 on page 104 The BIOS supports Logical Block Addressing LBA and Extended Cylinder Head Sector ECHS translation modes The drive reports the transfer rate and translation mode to the BIOS The Desktop Boards support Laser Servo LS 120 diskette technology through the IDE interfaces An LS 120 drive can be configured as a boot device by setting the BIOS Setup program s Boot menu to one of the following e ARMD FDD ATAPI removable media device floppy disk drive e ARMD HDD ATAPI removable media device hard disk drive For information about Refer to The location of the IDE connectors on the D845GERG2 board Figure 15 page 67 The location of the IDE connectors on the D845GEBV2 board Figure 16 page 68 1 8 3 2 SCSI LED Connector 34 The SCSI LED connector is a 1 X 2 pin connector that allows an add in SCSI controller or other add in card hard drive controller to use the same LED as the onboard IDE controller For proper operation this connector should be wired to the LED output of the add in SCSI controller The LED indicates when data is being read from or written to both the add in SCSI controller and the IDE controller For information about Refer to The location of the SCSI LED connecto
84. he Communication and Networking Riser CNR connector provides an interface that supports the audio modem and LAN interfaces of the Intel 845GE chipset Figure 9 shows the signal interface between the riser and the ICH4 La AC 97 Interface p S Communication and Intel 82801DB Networking Riser UO Controller Hub LAN Interface gt amp ICH4 T Up to two AC 97 codecs LW SMBus 3 and one LAN device OM14262 40 Figure 9 ICH4 and CNR Signal Interface Product Description The interfaces supported by the CNR include the following e AC 97 interface supports audio and or modem functions on the CNR card e LAN interfaces an eight pin interface for use with Platform LAN Connection PLC based devices e SMBus interface provides Plug and Play functionality for the CNR card The CNR connector includes power signals required for power management and for CNR card operation To learn more about the CNR refer to the CNR specification The onboard two channel audio subsystem can be upgraded to four or six channel audio using a CNR audio upgrade card in a slave configuration CNR audio upgrade cards are available in multiple configurations from several vendors supporting analog or S P DIF digital connections For information about Refer to CNR audio upgrade cards http developer intel com technology cnr S INTEGRATOR S NOTES e Ifyou install a CNR card that cannot s
85. he El Torito bootable CD ROM format specification Under the Boot menu in the BIOS Setup program ATAPI CD ROM is listed as a boot device Boot devices are defined in priority order Accordingly if there is not a bootable CD in the CD ROM drive the system will attempt to boot from the next defined drive For information about Refer to The El Torito specification Section 1 5 page 20 3 8 2 Network Boot The network can be selected as a boot device This selection allows booting from the onboard LAN or a network add in card with a remote boot ROM installed Pressing the lt F12 gt key during POST automatically forces boot from the LAN 3 8 3 Booting Without Attached Devices For use in embedded applications the BIOS has been designed so that after passing the POST the operating system loader is invoked even if the following devices are not present e Video adapter e Keyboard e Mouse 3 8 4 Changing the Default Boot Device During POST Pressing the lt F10 gt key during POST causes a boot device menu to be displayed This menu displays the list of available boot devices as set in the BIOS setup program s Boot Device Priority Submenu Table 49 lists the boot device menu options Table 49 Boot Device Menu Options Boot Device Menu Function Keys Description lt T gt or lt d gt Selects a default boot device lt Enter gt Exits the menu saves changes and boots from the selected device lt Esc gt Exits the menu without sa
86. iated with conventional rendering For information about Refer to Obtaining the Zone Rendering white paper http developer intel com design chipsets 845g 1 8 1 4 AGP Connector The AGP connector supports either e 1x 2x or 4x AGP add in cards with 1 5 V I O e AGP Digital Display ADD cards For information about Refer to Obtaining the Accelerated Graphics Port Interface Specification Section 1 5 page 20 S INTEGRATOR S NOTES e Install memory in the DIMM sockets prior to installing the AGP video card to avoid interference with the memory retention mechanism e The AGP connector is keyed for 1 5 V AGP cards only Do not attempt to install a legacy 3 3 VAGP card The AGP connector is not mechanically compatible with legacy 3 3 V AGP cards 1 8 1 5 AGP Digital Display ADD Card Support The GMCH routes two 12 bit multiplexed DVO ports that are each capable of driving a 165 MHz pixel clock to the AGP connector The DVO ports can be paired for dual channel mode In dual channel mode the GMCH is capable of driving a 24 bit 330 MHz pixel clock When an AGP add in card is used the Intel Extreme Graphics controller is disabled and the AGP connector operates in AGP mode When an ADD card is detected the Intel Extreme Graphics controller is enabled and the AGP connector is configured for DVO mode DVO mode enables the DVO ports to be accessed by an ADD card ADD cards can support up to two display devices with the following con
87. ice Function Number hex Number hex Number hex Description 00 00 00 Memory controller of Intel 82845GE component 00 01 00 Host to AGP bridge virtual P2P 00 1E 00 Hub link to PCI bridge 00 1F 00 Intel 82801DB ICH4 PCI to LPC bridge 00 H 01 IDE controller 00 1F 03 SMBus controller 00 H 05 AC 97 audio controller 00 1F 06 AC 97 modem controller 00 1D 00 USB UHCI controller 1 00 1D o USB UHCI controller 2 00 1D 02 USB UHCI controller 3 00 ap 07 EHCI controller 01 00 00 AGP add in card Note 1 08 00 LAN controller optional Note 1 00 00 PCI bus connector 1 Note 1 01 00 PCI bus connector 2 Note 1 02 00 PCI bus connector 3 Note 1 ek 00 PCI bus connector 4 Note 2 Note 1 04 00 PCI bus connector 5 Note 2 Note 1 05 00 PCI bus connector 6 Note 2 Notes 1 Bus number 01 when the Intel Extreme Graphics controller is used Bus number 02 when an AGP add in card is used 2 Desktop Board D845GEBV2 only 55 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 2 6 Interrupts The interrupts can be routed through either the Programmable Interrupt Controller PIC or the Advanced Programmable Interrupt Controller APIC portion of the ICH4 component The PIC is supported in Windows 98 SE and Windows ME and uses the first 16 interrupts The APIC is supported in Windows 2000 and Windows XP and sup
88. in connector provides mic in and line out signals for front panel audio connectors For information about Refer to The location of the connector Figure 13 page 62 The signal names of the front panel audio connector Table 25 page 64 Obtaining the Front Panel I O Connectivity Design Guide Section 1 5 page 20 gt NOTE The front panel audio connector is alternately used as a jumper block for routing audio signals Refer to Section 2 9 1 on page 72 for more information 1 10 1 2 Auxiliary Line In Connector A 1 x 4 pin ATAPI style connector connects the left and right channel signals of an internal audio device to the audio subsystem For information about Refer to The location of the auxiliary line in connector Figure 13 page 62 The signal names of the auxiliary line in connector Table 26 page 64 1 10 1 3 ATAPI CD ROM Audio Connector A 1 x 4 pin ATAPI style connector connects an internal ATAPI CD ROM drive to the audio mixer For information about Refer to The location of the ATAPI CD ROM connector Figure 13 page 62 The signal names of the ATAPI CD ROM connector Table 28 page 64 1 10 2 Audio Subsystem Software Audio software and drivers are available from Intel s World Wide Web site For information about Refer to Obtaining audio software and drivers Section 1 3 page 19 38 Product Description 1 11 LAN Subsystem Optional The Network Interface Controller subsystem consists of the ICH4 with integrat
89. ing font sizes e For video resolutions greater than 1600 x 1200 including 2048 x 1536 and 1920 x 1440 a font size of 200 is used e Fora 1600 x 1200 video resolution a 150 font size is used e For resolutions less than 1600 x 1200 a normal or large font size is used All available resolutions are tested using the highest available color depth and monitor refresh rate 27 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification Table 8 lists the Direct Draw supported modes Table 8 Direct Draw Supported Modes Resolution Color Palette Refresh Frequency Hz Notes 320 x 200 256 colors 70 Y 64 K colors 70 16 M colors 70 320 x 240 D 64 K colors 70 16 M colors 352x480 256 colors 70 64 K colors SS E 16 M colors 70 352 x 576 EK 64 K colors 70 16 M colors 400 x 300 256 colors 70 64 K colors 16 M colors 70 512 x 384 CEE 64 K colors 70 16 M colors ln 640x400 256 colors 70 64 K colors ehn 16 M colors 70 Notes Y Supported in driver without Direct3D and OpenGLt 3 Direct3D and OpenGL Co lt w Co w lt lt w w lt lt w Co w lt Co 28 Table 9 lists the video BIOS video modes supported by the graphics subsystem Table 9 Video BIOS Video Modes Supported for Analog CRTs Available Refresh 60 75
90. ing of the components on the board e A processor fan heatsink that meets the thermal performance targets for Pentium 4 processors operating above 2 80 GHz Failure to ensure appropriate airflow may result in reduced performance of both the processor and or voltage regulator or in some instances damage to the desktop board For a list of chassis that have been tested with Intel desktop boards please refer to the following website http developer intel com design motherbd cooling htm All responsibility for determining the adequacy of any thermal or system design remains solely with the reader Intel makes no warranties or representations that merely following the instructions presented in this document will result in a system with adequate thermal performance 81 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification A CAUTION 82 Ensure that the ambient temperature does not exceed the Desktop Board s maximum operating temperature Failure to do so could cause components to exceed their maximum case temperature and malfunction For information about the maximum operating temperature see the environmental specifications in Section 2 14 CAUTION Ensure that proper airflow is maintained in the processor voltage regulator circuit Failure to do so may result in damage to the voltage regulator circuit The processor voltage regulator area item A in Figure 23 can reach a temperature of up to 85 C in an open chassis
91. instead of POST messages Intel R Rapid BIOS Boot e Disabled e Enabled default Enables the computer to boot without running certain POST tests Scan User Flash Area e Disabled Enables the BIOS to scan the flash memory for e Enabled default user binary files that are executed at boot time PXE Boot to LAN e Disabled default Disables enables PXE boot to LAN e Enabled Note When set to Enabled you must reboot for the Intel Boot Agent device to be available in the Boot Device menu USB Boot e Disabled Disables enables booting to USB boot devices e Enabled default Boot Device Priority Select to display submenu Specifies the boot sequence from the available types of boot devices Hard Disk Drives Select to display submenu Specifies the boot sequence from the available hard disk drives Removable Devices Select to display submenu Specifies the boot sequence from the available removable devices ATAPI CD ROM Drives Select to display submenu Specifies the boot sequence from the available ATAPI CD ROM drives 115 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 4 7 1 Boot Device Priority Submenu 116 To access this menu select Boot on the menu bar and then Boot Devices Priority Maintenance Main Advanced Security Power Boot Exit Boot Device Priority Hard Disk Drives Removable Devices ATAPI CD ROM Drives The submenu represented in Table 71 is
92. intel Intel Desktop Board D845GEB V2 D845GERG2 Technical Product Specification October 2002 Order Number C14584 001 The Intel Desktop Board D845GEBV2 D845GERG2 may contain design defects or errors known as errata that may cause the product to deviate from published specifications Current characterized errata are documented in the Intel Desktop Board D845GEB V2 D845GERG2 Specification Update Revision History Revision Revision History Date 001 First release of the Intel Desktop Board D845GEBV2 D845GERG2 October 2002 Technical Product Specification This product specification applies to only standard Intel Desktop Boards D845GEB V2 and D845GERG2 with BIOS identifier RG84510A 86A Changes to this specification will be published in the Intel Desktop Board D845GEB V2 D845GERG2 Specification Update before being incorporated into a revision of this document INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL PRODUCTS EXCEPT AS PROVIDED IN INTEL S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS INTEL ASSUMES NO LIABILITY WHATSOEVER AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY RELATING TO SALE AND OR USE OF INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE MERCHANTABILITY OR INFRINGEMENT OF ANY PATENT COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT Intel Corporation may have patents or pending patent applications trademarks copyrights or other intell
93. ion operation of the fan connectors for Desktop Boards with the hardware monitoring and fan control ASIC Table 17 Fan Connector Function Operation for Desktop Boards with a Hardware Monitoring ASIC Connector Description Processor fan e 12 V DC connection for a processor fan or active fan heatsink e Fan is on in the SO or S1 state Fan is off when the system is off or in the S3 S4 or S5 state e Wired to a fan tachometer input of the I O controller Front chassis fan e 12 V DC connection for a system or chassis fan e Fan is on in the SO or S1 state Fan is off when the system is off or in the S3 S4 or S5 state Rear chassis fan e 12 V DC connection for a system or chassis fan e Fan is on in the SO or S1 state Fan is off when the system is off or in the S3 S4 or S5 state e Wired to a fan tachometer input of the I O controller Product Description Table 18 Fan Connector Function Operation for Desktop Boards with a Hardware Monitoring and Fan Control ASIC Connector Description Processor fan e 12 V DC connection for a processor fan or active fan heatsink e Fan is on in the SO or S1 state Fan is off when the system is off or in the S3 S4 or S5 state e Wired to a fan tachometer input of the hardware monitoring and fan control ASIC e Closed loop fan control that can adjust the fan speed or switch the fans on or off as needed Front chassis fan e 12 V DC connection for a system
94. ire power from the 5 V standby line The sections discussing these features describe the incremental standby power requirements for each 47 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification Resume on Ring enables telephony devices to access the computer when it is in a power managed state The method used depends on the type of telephony device external or internal NOTE The use of Resume on Ring and Wake from USB technologies from an ACPI state requires an operating system that provides full ACPI support 1 14 2 1 Power Connector ATX12V and SFX12V compliant power supplies can turn off the system power through system control When an ACPI enabled system receives the correct command the power supply removes all non standby voltages When resuming from an AC power failure the computer returns to the power state it was in before power was interrupted on or off The computer s response can be set using the Last Power State feature in the BIOS Setup program s Boot menu For information about Refer to The location of the power connector Figure 13 page 62 The signal names of the power connector Table 31 page 66 The BIOS Setup program s Boot menu Table 70 page 115 The ATX and SFX specifications Section 1 5 page 20 1 14 2 2 Fan Connectors 48 Table 17 summarizes the function operation of the fan connectors for Desktop Boards with the hardware monitoring ASIC Table 18 summarizes the funct
95. ision 1 2 http developer intel com Network Riser CNR November 8 2001 technology cnr index htm Specification Intel Corporation 20 continued Product Description Table 4 Specifications continued Reference Specification Version Revision Date and The information is Name Title Ownership available from DDR Double Data Rate DDR Version 1 0 http www jedec org SDRAM SDRAM Specification June 2000 JEDEC Solid State Technology Association Design Specification for Revision 1 0 http www jedec org a 184 Pin DDR October 2001 Unbuffered DIMM JEDEC Solid State Technology Association Intel JEDEC DDR Revision 0 9 http developer intel com 200 266 Unbuffered September 27 2001 technology memory DIMM Specification Intel Corporation index htm Addendum EHCI Enhanced Host Revision 1 0 http developer intel com Controller Interface March 12 2002 technology usb download Specification for Intel Corporation ehci r10 pdf Universal Serial Bus EPP IEEE Std 1284 1 1997 Version 1 7 http standards ieee org Enhanced Parallel Port 1997 reading ieee std_public Institute of Electrical and description busarch Electronic Engineers 1284 1 1997_desc html El Torito Bootable CD ROM Version 1 0 http www phoenix com Format Specification January 25 1995 PlatSS products specs html Phoenix Technologies Limited and International Business Machines Corporation Front Panel Front Panel
96. isor mode e The user password gives restricted access to view and change Setup options in the BIOS Setup program This is the user mode e If only the supervisor password is set pressing the lt Enter gt key at the password prompt of the BIOS Setup program allows the user restricted access to Setup e If both the supervisor and user passwords are set users can enter either the supervisor password or the user password to access Setup Users have access to Setup respective to which password is entered e Setting the user password restricts who can boot the computer The password prompt will be displayed before the computer is booted If only the supervisor password is set the computer boots without asking for a password If both passwords are set the user can enter either password to boot the computer Table 50 shows the effects of setting the supervisor password and user password This table is for reference only and is not displayed on the screen Table 50 Supervisor and User Password Functions Supervisor Password to Password Password Set Mode User Mode Setup Options Enter Setup During Boot Neither Can change all Can change all None None None options Note options Note Supervisor Can change all Can changea Supervisor Password Supervisor None only options limited number of options User only N A Can change all Enter Password User User options Clear User Password Supervisor Can change all Can ch
97. ktop Board D845GERG 2 with the Gigabit Ethernet LAN option 20 10 oooo0o000000 jf 11 O00000 000W8j 1 Item Description gt Front panel audio Auxiliary line in ATAPI style white Rear chassis fan ATAPI CD ROM black 12 V power connector ATX12V Processor fan Main power Chassis intrusion Tomm DO D Front chassis fan OM15118 For more information see Table 25 Table 26 Table 27 Table 28 Table 29 Table 30 Table 31 Table 32 Table 33 Figure 14 Audio Power and Hardware Control Connectors on the Desktop Board D845GERG2 with the Gigabit Ethernet LAN option 63 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification Table 25 Front Panel Audio Connector Pin Signal Name Pin Signal Name 1 MIC IN 2 Ground 3 MIC_BIAS 4 EN 5 RIGHT_OUT 6 RIGHT_IN 7 Ground 8 Key 9 LEFT_OUT 10 LEFT_IN 2 INTEGRATOR S NOTE The front panel audio connector is alternately used as a jumper block for routing audio signals Refer to Section 2 9 1 on page 72 for more information Table 26 Auxiliary Line In Connector Pin Signal Name 14 Left auxiliary line in 2 Ground 3 Ground 4 Right auxiliary line in
98. l Product Specification To install an operating system that supports USB verify that Legacy USB support in the BIOS Setup program is set to Enabled and follow the operating system s installation instructions NOTE Legacy USB support is for keyboards mice and hubs only Other USB devices are not supported in legacy mode 3 6 BIOS Updates The BIOS can be updated using either of the following utilities which are available on the Intel World Wide Web site e Intel Express BIOS Update utility which enables automated updating while in the Windows environment Using this utility the BIOS can be updated from a file on a hard disk a 1 44 MB diskette or a CD ROM or from the file location on the Web e Intel Flash Memory Update Utility which requires creation of a boot diskette and manual rebooting of the system Using this utility the BIOS can be updated from a file on a 1 44 MB diskette from a legacy diskette drive or an LS 120 diskette drive or a CD ROM Both utilities support the following BIOS maintenance functions e Verifying that the updated BIOS matches the target system to prevent accidentally installing an incompatible BIOS e Updating both the BIOS boot block and the main BIOS This process is fault tolerant to prevent boot block corruption e Updating the BIOS boot block separately e Changing the language section of the BIOS e Updating replaceable BIOS modules such as the video BIOS module e Inserting a cu
99. llowing functional groups 2 8 2 1 Audio power and hardware control see page 62 Auxiliary line in ATAPI CD ROM Front panel audio Fans ATX12V power Main power Add in boards and peripheral interfaces see page 67 CNR optional PCI bus AGP IDE Diskette drive SCSI LED Expansion Slots The board has the following expansion slots One AGP connector The AGP connector is keyed for 1 5 V AGP cards only Do not install a legacy 3 3 V AGP card The AGP connector is not mechanically compatible with legacy 3 3 V AGP cards PCI rev 2 2 compliant local bus slots six on the Desktop Board D845GEB V2 three on the Desktop Board D845GERG2 The SMBus is routed to PCI bus connector 2 only ATX expansion slot 6 PCI add in cards with SMBus support can access sensor data and other information residing on the Desktop Board One CNR optional shared with PCI bus connector 6 ATX expansion slot 1 on the Desktop Board D845GEB V2 or with PCI bus connector 3 ATX expansion slot 1 on the Desktop Board D845GERG2 gt NOTE This document references back panel slot numbering with respect to processor location on the board The AGP slot is not numbered PCI slots are identified as PCI slot x starting with the slot closest to the processor The CNR slot shares an ATX expansion slot 6 on the D845GEBV2 board and slot 3 on the D845GERG2 board The ATX MicroATX specifications identify expan
100. lt END gt key is pressed Going to disable DMA and Interrupt controllers 13 Video display is disabled and port B is initialized Chipset init about to begin 14 8254 timer test about to start 19 About to start memory refresh test 1A Memory Refresh line is toggling Going to check 15 us ON OFF time 23 To read 8042 input port and disable Megakey GreenPC feature Make BIOS code segment writeable 24 To do any setup before Int vector init 25 Interrupt vector initialization to begin To clear password if necessary 27 Any initialization before setting video mode to be done 28 Going for monochrome mode and color mode setting 2A Different buses init system static output devices to start if present See Section 5 3 for details of different buses 2B To give control for any setup required before optional video ROM check 2C To look for optional video ROM and give control 2D To give control to do any processing after video ROM returns control 2E If EGA VGA not found then do display memory R W test 2F EGA VGA not found Display memory R W test about to begin 30 Display memory R W test passed About to look for the retrace checking 31 Display memory R W test or retrace checking failed To do alternate Display memory R W test 32 Alternate Display memory R W test passed To look for the alternate display retrace checking 34 Video display checking over Display mode to be set next 37 Display mode set Going to displa
101. lure Parity cannot be reset First 64 KB memory failure Timer not operational Not used 8042 GateA20 cannot be toggled Exception interrupt error Display memory R W error Not used CMOS Shutdown register test error Invalid BIOS e g POST module not found etc 127 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 128
102. nabled 20 components CNR Note 375 e Add to Instantly Available USB ports Note 500 PC total current requirement See instructions above Note Dependent upon system configuration 79 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification gt NOTE IBM PS 2 Port Specification Sept 1991 states e 275 mA for keyboard e 70 mA for the mouse nonwake enable device PCI AGP requirements are calculated by totaling the following e One wake enabled device 375 mA plus e Five nonwake enabled devices 20 mA each plus USB requirements are calculated as e One wake enabled device 500 mA e USB hub 100 mA e Three USB nonwake enabled devices connected 2 5 mA each NOTE Both USB ports are capable of providing up to 500 mA during normal GO SO operation Only one USB port will support up to 500 mA of stand by current wake enabled device during G1 S3 suspended operation The other port may provide up to 7 5 mA three nonwake enabled devices during GI S3 suspended operation 2 11 4 Fan Connector Current Capability 80 Table 44 lists the current capability of the fan connectors on the Desktop Boards D845GEBV2 and D845GERG2 Table 44 Fan Connector Current Capability Maximum Available Current for Desktop Boards with the Hardware Monitoring and Fan Connector Hardware Monitoring ASIC Fan Control ASIC Processor fan 1 00A 0 80 A Front chassis fan 0 50A 0 30 A Rear chassis fan 0 35A 0 30 A
103. nches by 8 20 inches 304 80 millimeters by 208 28 millimeters Location of the I O connectors and mounting holes are in compliance with the ATX specification see Section 1 5 800 20 32 6 500 emeeegeen 165 10 Z 5 eee 6 10 _ Kees 154 94 I Ld 5 20 132 08 ie owe 2 1 10 Ol l 1 l 1 l I l 1 l 1 l I l 1 o j 10 Oji UE Li 0 00 ch p E d O 1 700 _ be C 42 5 9 050 2 95 229 87 74 93 2 300 0 00 2 600 58 42 66 04 8 800 223 52 OM13583 Figure 19 Desktop Board D845GEBV2 Dimensions 74 2 10 2 D845GERG2 Form Factor Technical Reference The Desktop Board D845GERG2 is designed to fit into either a microATX or an ATX form factor chassis Figure 20 illustrates the mechanical form factor for the Desktop Board D845GERG2 Dimensions are given in inches millimeters The outer dimensions are 9 60 inches by 8 20 inches 243 84 millimeters by 208 28 millimeters Location of the I O connectors and mounting holes are in compliance with the ATX specification see Section 1 5 gt NOTE When installing the Desktop Board in a microATX chassis
104. nd a disk drive using any other IDE transfer protocol are attached to the same cable the maximum transfer rate between the drives is reduced to that of the slowest device NOTE Do not connect an ATA device as a slave on the same IDE cable as an ATAPI master device For example do not connect an ATA hard drive as a slave to an ATAPI CD ROM drive Overview of BIOS Features 3 4 System Management BIOS SMBIOS SMBIOS is a Desktop Management Interface DMI compliant method for managing computers in a managed network The main component of SMBIOS is the Management Information Format MIF database which contains information about the computing system and its components Using SMBIOS a system administrator can obtain the system types capabilities operational status and installation dates for system components The MIF database defines the data and provides the method for accessing this information The BIOS enables applications such as third party management software to use SMBIOS The BIOS stores and reports the following SMBIOS information e BIOS data such as the BIOS revision level e Fixed system data such as peripherals serial numbers and asset tags e Resource data such as memory size cache size and processor speed e Dynamic data such as event detection and error logging Non Plug and Play operating systems such as Windows NT require an additional interface for obtaining the SMBIOS information The BIOS supports an SMBIOS
105. nector 3 Note 1 SS e 9 e 10 e 11 PCI Slot4 IRQ Priority e Auto default Allows selection of IRQ priority for PCI bus connector 4 Note 1 Note 2 e 5 e 9 e 1 0 e 11 continued 99 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification Table 56 PCI Configuration Submenu continued Feature Options Description PCI Slot5 IRQ Priority e Auto default Allows selection of IRQ priority for PCI bus connector 5 Note 1 Note 2 e 5 es 9 e 10 e 11 PCI Slot6 IRQ Priority e Auto default Allows selection of IRQ priority for PCI bus connector 6 Note 1 Note 2 e 5 es 9 e 10 e 11 Notes 1 Additional interrupts may be available if certain onboard devices such as the serial and parallel ports are disabled 2 This option appears only on the Desktop Board D845GEBV2 4 4 2 Boot Configuration Submenu To access this submenu select Advanced on the menu bar and then Boot Configuration Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration Fan Control Configuration The submenu represented by Table 57 is for setting Plug and Play options resetting configuration data and the power on state of the Numlock key Table 57 Boot Configuration Submenu
106. nitialize DMA controller and interrupt controller E8 Initialize extra Intel Recovery Module E9 Initialize floppy drive EA Try to boot from floppy If reading of boot sector is successful give control to boot sector code EB Booting from floppy failed look for ATAPI LS 120 Zip devices EC Try to boot from ATAPI If reading of boot sector is successful give control to boot sector code EF Booting from floppy and ATAPI device failed Give two beeps Retry the booting procedure again go to check point E9 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 122 Table 79 Runtime Code Uncompressed in F000 Shadow RAM Code Description of POST Operation 03 NMI is Disabled To check soft reset power on 05 BIOS stack set Going to disable cache if any 06 POST code to be uncompressed 07 CPU init and CPU data area init to be done 08 CMOS checksum calculation to be done next 0B Any initialization before keyboard BAT to be done next oc KB controller I B free To issue the BAT command to keyboard controller OE Any initialization after KB controller BAT to be done next OF Keyboard command byte to be written 10 Going to issue Pin 23 24 blocking unblocking command 11 Going to check pressing of lt INS gt lt END gt key during power on 12 To init CMOS if Init CMOS in every boot is set or
107. on 2 13 Reliability The Mean Time Between Failures MTBF prediction is calculated using component and subassembly random failure rates The calculation is based on the Bellcore Reliability Prediction Procedure TR NWT 000332 Issue 4 September 1991 The MTBF prediction is used to estimate repair rates and spare parts requirements The MTBF data is calculated from predicted data at 55 C The MTBF calculations for the Desktop Boards are as follows e Desktop Board D845GEBV2 MTBF 108748 hours e Desktop Board D845GERG2 MTBF 111270 hours 2 14 Environmental Table 46 lists the environmental specifications for the Desktop Boards D845GEBV2 and D845GERG2 Table 46 Desktop Board D845GEBV2 D845GERG2 Environmental Specifications Parameter Specification Temperature Non Operating 40 C to 70 C Operating 0 C to 55 C Shock Unpackaged 50 g trapezoidal waveform Velocity change of 170 inches second Packaged Half sine 2 millisecond Product Weight pounds Free Fall inches Velocity Change inches sec l lt 20 36 167 21 40 30 152 41 80 24 136 81 100 18 118 Vibration Unpackaged 5 Hz to 20 Hz 0 01 g Hz sloping up to 0 02 g Hz 20 Hz to 500 Hz 0 02 g Hz flat Packaged 10 Hz to 40 Hz 0 015 g Hz flat 40 Hz to 500 Hz 0 015 g Hz sloping down to 0 00015 g Hz 84 Technical Reference 2 15 Regulatory Compliance This section d
108. onitoring ASIC is present on your Intel Desktop Board 1 13 1 1 Hardware Monitoring ASIC The features of the hardware monitoring ASIC include e Internal ambient temperature sensor e Remote thermal diode sensor for direct monitoring of processor temperature e Power supply monitoring of four voltages 5 V 3 3 VSB 1 5 V and VCCP to detect levels above or below acceptable values e SMBus interface For information about Refer to The location of the fan connectors and sensors for thermal monitoring Figure 10 page 43 1 13 1 2 Hardware Monitoring and Fan Control ASIC 42 The features of the hardware monitoring and fan control ASIC include e Internal ambient temperature sensor e Two remote thermal diode sensors for direct monitoring of processor temperature and ambient temperature sensing e Power supply monitoring of five voltages 5 V 12 V 3 3 VSB 1 5 V and VCCP to detect levels above or below acceptable values e Thermally monitored closed loop fan control for all three fans that can adjust the fan speed or switch the fans on or off as needed e SMBus interface Product Description For information about Refer to The location of the fan connectors and sensors for thermal monitoring Figure 10 page 43 1 13 1 3 Thermal Monitoring Figure 10 shows the location of the sensors and fan connectors Item Im DO D 1 No
109. ontrol next A9 Returned from E000 ROM control Going to do any initialization required after E000 optional ROM control AA Initialization after E000 optional ROM control is over Going to display the system configuration AB Put INT13 module runtime image to shadow 0 AC Generate MP for multiprocessor support if present AD Put CGA INT10 module if present in Shadow continued 5 3 Error Messages and Beep Codes Table 79 Runtime Code Uncompressed in F000 Shadow RAM continued Code Description of POST Operation AE Uncompress SMBIOS module and init SMBIOS code and form the runtime SMBIOS image in shadow B1 Going to copy any code to specific area 00 Copying of code to specific area done Going to give control to INT 19 boot loader Bus Initialization Checkpoints The system BIOS gives control to the different buses at several checkpoints to do various tasks Table 80 describes the bus initialization checkpoints Table 80 Bus Initialization Checkpoints Checkpoint 2A 38 39 95 Description Different buses init system static and output devices to start if present Different buses init input IPL and general devices to start if present Display different buses initialization error messages Init of different buses optional ROMs from C800 to start While control is inside the different bus routines additional checkpoints are output to port 80h as WORD to identify the routines under exe
110. or Desktop Board Support http support intel com support motherboards desktop Available configurations for the Desktop _http developer intel com design motherbd bv2 bv2_available htm Board D845GEBV2 Available configurations for the Desktop http developer intel com design motherbd rg2 rg2_available htm Board D845GERG2 Processor data sheets http www intel com design litcentr CHA addressing ti iti s S http developer intel com design chipsets datashts Custom splash screens http intel com design motherbd gen_indx htm Audio software and utilities http www intel com design motherbd LAN software and drivers S http www intel com design motherbd 1 4 Operating System Support The Desktop Boards D845GEBV2 and D845GERG2 support drivers for all of the onboard hardware and subsystems under the following operating systems e Windowst XP e Windows ME e Windows 2000 e Windows NTT 4 0 e Microsoft Windows 98 SE For information about Refer to Supported drivers Section 1 3 gt NOTE Third party vendors may offer other drivers gt NOTE USB 2 0 support has been tested with Windows 2000 and Windows XP drivers and is not currently supported by any other operating system Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 1 5 Design Specifications Table 4 lists the specifications applicable to the Desktop Boards D845GEBV2 and D845GERG2 Table
111. or chassis fan e Fan is on in the SO or S1 state Fan is off when the system is off or in the S3 S4 or S5 state e Wired to a fan tachometer input of the hardware monitoring and fan control ASIC e Closed loop fan control that can adjust the fan speed or switch the fans on or off as needed Rear chassis fan e 12 V DC connection for a system or chassis fan e Fan is on in the SO or S1 state Fan is off when the system is off or in the S3 S4 or S5 state e Wired to a fan tachometer input of the hardware monitoring and fan control ASIC e Closed loop fan control that can adjust the fan speed or switch the fans on or off as needed For information about Refer to The location of the fan connectors Figure 13 page 62 The location of the fan connectors and sensors for thermal monitoring Figure 10 on page 43 The signal names of the fan connectors Section 2 8 2 2 page 62 1 14 2 3 LAN Wake Capabilities A CAUTION For LAN wake capabilities the 5 V standby line for the power supply must be capable of providing adequate 5 V standby current Failure to provide adequate standby current when implementing LAN wake capabilities can damage the power supply Refer to Section 2 11 3 on page 79 for additional information LAN wake capabilities enable remote wake up of the computer through a network The LAN subsystem PCI bus network adapter monitors network traffic at the Media Independent Interface Upon detecting a Magic Packet frame
112. ord can be up to seven Specifies the user password alphanumeric characters Clear User Password e Ok default Clears the user password Note 2 e Cancel Chassis Intrusion e Disabled default Disabled Disables Chassis Intrusion e Log Log Logs the intrusion in the event log e Log notify once Log notify once Halts system during POST e Log notify til cleared User must press lt F4 gt to continue Intrusion flag is cleared and the event log is updated Log notify til cleared Halts system during POST User must enter BIOS setup Security Menu and select Clear Chassis Intrusion Status to clear the Chassis intrusion flag Notes 1 This feature appears only if a supervisor password has been set 2 This feature appears only if a user password has been set 3 This feature appears only if the Chassis Intrusion log notify til cleared option has been set 113 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 4 6 Power Menu To access this menu select Power from the menu bar at the top of the screen Maintenance Main Advanced Security Power Boot Exit ACPI The menu represented in Table 68 is for setting the power management features Table 68 Power Menu Feature Options Description ACPI Select to display submenu Sets the ACPI power management options After Power Failure le Stay Off Specifies the mode of operation if an AC power loss e Last State default occurs e P
113. ormation about Refer to The location of the onboard speaker on the Desktop Board D845GEBV2 Figure 1 on page 14 The location of the onboard speaker on the Desktop Board D845GERG2 Figure 2 on page 15 5 5 BIOS Beep Codes 126 Whenever a recoverable error occurs during POST the BIOS displays an error message describing the problem see Table 83 The BIOS also issues a beep code one long tone followed by two short tones during POST if the video configuration fails a faulty video card or no card installed or if an external ROM module does not properly checksum to zero An external ROM module for example a video BIOS can also issue audible errors usually consisting of one long tone followed by a series of short tones For more information on the beep codes issued check the documentation for that external device There are several POST routines that issue a POST terminal error and shut down the system if they fail Before shutting down the system the terminal error handler issues a beep code signifying the test point error writes the error to I O port 80h attempts to initialize the video and writes the error in the upper left corner of the screen using both monochrome and color adapters Error Messages and Beep Codes If POST completes normally the BIOS issues one short beep before passing control to the operating system Table 83 Beep Codes Beep o OO NI OO oO AJ Gol DM OH Description Refresh fai
114. ort default is set to Enabled DMA e 1 Specifies the DMA channel This feature is present e 3 default only when Parallel Port Mode is set to ECP Audio Enabled Enables or disables the onboard audio subsystem default For boards with no onboard audio subsystem this option Disabled does not appear LAN Device Disabled Enables or disables the onboard LAN device Enabled For boards with no onboard LAN subsystem this option will default not appear 102 4 4 4 IDE Configuration Submenu BIOS Setup Program To access this submenu select Advanced on the menu bar and then IDE Configuration Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration Fan Control Configuration The menu represented in Table 59 is used to configure IDE device options Table 59 IDE Configuration Submenu Feature Options Description IDE Controller e Disabled Specifies the integrated IDE controller e Primary Primary enables only the primary IDE controller eS d Secondary enables only the secondary IDE controller eo ee Both enables both IDE controllers e Both default PCI IDE Bus Master e Disabled Enables disables the use of DMA for hard drive BIOS Enabled default INT13 reads and writes
115. ower On Stay Off keeps the power off until the power button is pressed Last State restores the previous power state before power loss occurred Power On restores power to the computer Wake on PCI PME e Stay Off default e Power On Specifies how the computer responds to a PCI power management event 4 6 1 ACPI Submenu To access this menu select Power from the menu bar at the top of the screen and then ACPI Maintenance Main Advanced Security Power Boot Exit ACPI The submenu represented in Table 69 is for setting the ACPI power options Table 69 ACPI Submenu Feature Options Description ACPI Suspend State e S1 State S1 is the safest mode but consumes more power e S3 State S3 consumes less power but some drivers may not support this state Wake on LAN from S5 Stay Off default In ACPI soft off mode only determines how the e Power On system responds to a LAN wake up event 114 BIOS Setup Program 4 7 Boot Menu To access this menu select Boot from the menu bar at the top of the screen Maintenance Main Advanced Security Power Boot Exit Boot Device Priority Hard Disk Drives Removable Devices ATAPI CD ROM Drives The menu represented in Table 70 is used to set the boot features and the boot sequence Table 70 Boot Menu Feature Options Description Silent Boot e Disabled Disabled displays normal POST messages e Enabled default Enabled displays OEM graphic
116. pecification specifies how interrupts can be shared between devices attached to the PCI bus In most cases the small amount of latency added by interrupt sharing does not affect the operation or throughput of the devices In some special cases where maximum performance is needed from a device a PCI device should not share an interrupt with other PCI devices Use the following information to avoid sharing an interrupt with a PCI add in card PCI devices are categorized as follows to specify their interrupt grouping e INTA By default all add in cards that require only one interrupt are in this category For almost all cards that require more than one interrupt the first interrupt on the card is also classified as INTA e INTB Generally the second interrupt on add in cards that require two or more interrupts is classified as INTB This is not an absolute requirement e INTC and INTD Generally a third interrupt on add in cards is classified as INTC and a fourth interrupt is classified as INTD The ICH4 has eight Programmable Interrupt Request PIRQ input signals All PCI interrupt sources either onboard or from a PCI add in card connect to one of these PIRQ signals Some PCI interrupt sources are electrically tied together on the Desktop Boards D845GEB V2 and D845GERG2 and therefore share the same interrupt Table 24 shows an example of how the PIRQ signals are routed For example using Table 24 as a reference assume an add in card usin
117. pecifies the base I O address for serial port A if serial port A This feature is present 2F8 is set to Enabled only when Serial Port A is set to Enabled ieee e 2E8 Interrupt e IRQ3 Specifies the interrupt for serial port A if serial port A is set to This feature is present IRQ4 Enabled only when Serial Port A default is set to Enabled Parallel port e Disabled Configures the parallel port e Enabled Auto assigns LPT1 the address 378h and the interrupt IRQ7 e Auto default An asterisk displayed next to an address indicates a conflict with another device Mode e Output Only Selects the mode for the parallel port Not available if the e Bi directional Parallel port is disabled default Output Only operates in ATt compatible mode e EPP Bi directional operates in PS 2 compatible mode e ECP EPP is Extended Parallel Port mode a high speed bi directional mode ECP is Enhanced Capabilities Port mode a high speed bi directional mode continued 101 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification Table 58 Peripheral Configuration Submenu continued Feature Options Description Base I O address e 378 default Specifies the base I O address for the parallel port This feature is present 278 only when Parallel Port is set to Enabled Interrupt e IRQ5 Specifies the interrupt for the parallel port This feature is present IRQ7 only when Parallel P
118. plete Hard disk setup to be done next 95 Init of different buses optional ROMs from C800 to start See Section 5 3 for details of different buses 96 Going to do any init before C800 optional ROM control 97 Any init before C800 optional ROM control is over Optional ROM check and control will be done next 98 Optional ROM control is done About to give control to do any required processing after optional ROM returns control and enable external cache 99 Any initialization required after optional ROM test over Going to setup timer data area and printer base address 9A Return after setting timer and printer base address Going to set the RS 232 base address 9B Returned after RS 232 base address Going to do any initialization before Coprocessor test 9C Required initialization before Coprocessor is over Going to initialize the Coprocessor next 9D Coprocessor initialized Going to do any initialization after Coprocessor test 9E Initialization after Coprocessor test is complete Going to check extended keyboard keyboard ID and num lock A2 Going to display any soft errors A3 Soft error display complete Going to set keyboard typematic rate A4 Keyboard typematic rate set To program memory wait states A5 Going to enable parity NMI A7 NMI and parity enabled Going to do any initialization required before giving control to optional ROM at E000 A8 Initialization before E000 ROM control over E000 ROM to get c
119. ports a total of 24 interrupts Table 23 Interrupts IRQ System Resource NMI UO channel check 0 Reserved interval timer 1 Reserved keyboard buffer full 2 Reserved cascade interrupt from slave PIC 3 COM2 Note 1 4 COM1 Note 1 5 LPT2 Plug and Play option User available 6 Diskette drive 7 LPT1 Note 1 8 Real time clock 9 Reserved for ICH4 system management bus 10 User available 11 User available 12 Onboard mouse port if present else user available 13 Reserved math coprocessor 14 Primary IDE if present else user available 15 Secondary IDE if present else user available 16 Note 2 USB UHCI controller 1 through PIRQA 17 Note 2 AC 97 audio modem User available through PIRQB 18 Note 2 ICH4 USB controller 3 through PIRQC 19 Note 2 ICH4 USB controller 2 through PIRQD 20 Note 2 ICH4 LAN optional through PIRQE 21 Note 2 User available through PIRQF 22 Note 2 User available through PIRQG 23 Note 2 ICH4 USB 2 0 EHCI controller User available through PIRQH Notes 1 Default but can be changed to another IRQ 2 Available in APIC mode only 56 Technical Reference 2 7 PCI Interrupt Routing Map This section describes interrupt sharing and how the interrupt signals are connected between the PCI bus connectors and onboard PCI devices The PCI s
120. pport Section 1 3 page 19 Power supply connectors Section 2 8 2 2 page 62 23 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 1 7 System Memory 24 The Desktop Boards D845GEBV2 and D845GERG2 both have two DIMM sockets and support the following memory features 2 5 V only 184 pin DDR SDRAM DIMMs with gold plated contacts Unbuffered unregistered single sided or double sided DIMMs Maximum total system memory 2 GB minimum total system memory 64 MB DDR333 266 MHz SDRAM DIMMs only Serial Presence Detect SPD Suspend to RAM CAUTION Do not use ECC DIMMs with these Desktop Boards Using ECC DIMMs could damage the Desktop Board INTEGRATOR S NOTES e Registered DIMMs are not supported e Double sided x16 DIMMs are not supported e Remove the AGP video card before installing or upgrading memory to avoid interference with the memory retention mechanism e These Desktop Boards have been designed to support DIMMs based on 512 Mbit technology for a maximum onboard capacity of up to 2 GB but this technology has not been validated currently validated up to 1 0 GB on this board Please refer to the following Intel web sites for the latest lists of tested memory For the Desktop Board D845GEBV2 http developer intel com design motherbd bv2 bv2_mem htm For the Desktop Board DS45GERG2 http developer intel com design motherbd rg2 rg2_mem htm NOTE To be fully compliant with all applicable DDR SDRA
121. r on the D845GERG2 board Figure 15 page 67 The location of the SCSI LED connector on the D845GEBV2 board Figure 16 page 68 The signal names of the SCSI LED connector Table 34 page 68 1 8 4 Product Description Real Time Clock CMOS SRAM and Battery A coin cell battery CR2032 powers the real time clock and CMOS memory When the computer is not plugged into a wall socket the battery has an estimated life of three years When the computer is plugged in the standby current from the power supply extends the life of the battery The clock is accurate to 13 minutes year at 25 C with 3 3 VSB applied gt NOTE If the battery and AC power fail custom defaults if previously saved will be loaded into CMOS RAM at power on 1 9 I O Controller The SMSC LPC47M172 I O controller provides the following features One serial port One parallel port with Extended Capabilities Port ECP and Enhanced Parallel Port EPP support Serial IRQ interface compatible with serialized IRQ support for PCI systems PS 2 style mouse and keyboard interfaces Interface for one 1 44 MB or 2 88 MB diskette drive Intelligent power management including a programmable wake up event interface PCI power management support The BIOS Setup program provides configuration options for the I O controller For information about Refer to SMSC LPC47M172 I O controller http www smsc com 1 9 1 Serial Port The boards have one serial port connector
122. re installed 5 006 7 0 9 OO 10 S INTEGRATOR S NOTE When the jumpers are removed and this connector is used for front panel audio the back panel audio line out and mic in connectors are disabled 2 9 2 BIOS Setup Configuration Jumper Block The 3 pin jumper block determines the BIOS Setup program s mode Table 41 describes the jumper settings for the three modes normal configure and recovery When the jumper is set to configuration mode and the computer is powered up the BIOS compares the processor version and the microcode version in the BIOS and reports if the two match Table 41 BIOS Setup Configuration Jumper Settings Function Mode Jumper Setting Configuration Normal The BIOS uses current configuration information and 1 2 Jae sji passwords for booting Configure After the POST runs Setup runs automatically The 2 3 305 maintenance menu is displayed Recovery The BIOS attempts to recover the BIOS configuration A eeg recovery diskette is required None 3 73 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 2 10 Mechanical Considerations 2 10 1 D845GEBV2 Form Factor The Desktop Board D845GEBV2 is designed to fit into an ATX form factor chassis Figure 19 illustrates the mechanical form factor for the Desktop Board D845GEBV2 Dimensions are given in inches millimeters The outer dimensions are 12 00 i
123. ripheral Interface Connechors 68 17 gt External Lt CONMGCIONS kenaii e E a ts 69 18 Location of the Jumper BlOCKS iscescccccecsencececgscendecznctyceentesnedeneccpavedsxendeenecaweccacesndgececiiee 72 19 Desktop Board D845GEBV2 Dmensions 74 20 Desktop Board D845GERG2 Dimensions s sssssssseerreetsserttrrrnrrsssrrrttrrnrnrssrrrrrrrn n 75 21 WO Shield Dimensions for Desktop Boards with the LAN Gubsvstem 76 22 WO Shield Dimensions for Desktop Boards with no LAN Subsystem sseeessseeee 77 23 Localized High Temperature Zones scenic ence eet entre nanan emer eenee 82 Tables 1 Summary of Board BA 11 2 REELS SUMMAN EE 12 Bec Man fact ring OPNS sse ergeedgedeegiededu gedeelter sde 13 e PE ee 20 Br S pp rted PROCESSOIS scent er aa ne Mra a N A E GTa 23 D Supported DDR DIMM Configurations 0 0 00 cccceeeee eect eeceneeeeeeeeteeneeeeeeeeeeeeneeeeeeeees 25 7 Supported System Bus Frequency Memory Speed Combinatons 25 8 Direct Draw Supported Modes gereechert 28 9 Video BIOS Video Modes Supported for Analog CRTS ccccceeseeeeeeeeeeeeeeeeeeees 29 10 Supported Configuration Modes uk 30 11 Details of bpp Configuration Modes ANNE 31 12 10 100 Ethernet LAN Connector LED States 00 ec cccccceceeeeeeeceeeeeeeeeeeeeeeeeeeteeeeaaees 40 13 10 100 1000 Ethernet LAN Connector LED States ccceeccceeeeeeeeeeteneeeeeeeeeeenaaees 40 14 Effects of Pressing the Power Switch AAA 45 15 Power St
124. s Thermal sense to detect out of range thermal values Three fan sense inputs used to monitor fan activity Fan speed control Hardware monitoring and fan control ASIC Intel 82562ET 10 100 Mbit sec Platform LAN Connect PLC device Intel 82540EM 10 100 1000 Gigabit Ethernet Controller Desktop Board D845GERG2 only For information about Refer to Available configurations for the Desktop Boards D845GEBV2 and Section 1 3 page 19 D845GERG2 S INTEGRATOR S NOTE The LAN and the CNR manufacturing options are mutually exclusive 13 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 1 2 3 Board Layouts 14 Figure 1 shows the location of the major components on the Desktop Board D845GEB V2 2 CG Ion m DO D gt OZ ST AB C D F G E I ae ch o Ee Jez an EK S GG H DD EE FS on cC a a D BB o o AA LA A BR J Z K FL Y X A W F VUTS RQ P O N M OM13576 Audio codec P Front panel audio connector Q Auxiliary line in connector R Intel 82562ET 10 100 Mbit sec PLC de
125. s erpi Beien a Eed eege eee 20 ee 23 a SEENEN 24 6B intel S45GE CHIPS EEN 26 d i POCONO MON cs cnet hasnt cate de iad e e A aaah Gn cade aa lire aay 35 2Q AUGIO Subsystem a a E 37 eh LANE Subsystenr Optional EE 39 glee EE otis catia sh eas ie eile a oa ad te dae halt a Se nates ca ncaa a Neat ce tele aca ada eects 40 13 Hardware Management Gubeystem AANEREN 42 eA Power Management ege Ee ENN 44 Board Differences This TPS describes these Intel Desktop Boards D845GEBV2 and D845GERG2 The Desktop Boards are identical with the exception of the items listed in Table 1 Table 1 Summary of Board Differences D845GEBV2 e ATX Form Factor 12 00 inches by 8 20 inches e Six PCI bus connectors D845GERG2 e microATX Form Factor 9 60 inches by 8 20 inches e Three PCI bus connectors NOTE Most of the illustrations in this document show only the Desktop Board D845GEBV2 When there are significant differences between the two Desktop Boards illustrations of both boards are provided Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 1 2 Overview 1 2 1 Feature Summary Table 2 summarizes the major features of the Desktop Boards D845GEBV2 and D845GERG2 Table 2 Feature Summary Form Factor D845GEBV2 ATX 12 00 inches by 8 20 inches D845GERG2 microATX 9 60 inches by 8 20 inches Processor e Support for an Intel Pentium 4 processor in an mPGA478 socket with a 400 533 MHz system bus e
126. sion slot locations with respect to the far edge of a full sized ATX chassis The ATX specification and the board s silkscreen are opposite and could cause confusion The ATX numbering convention is made without respect to slot type PCI vs AGP but refers to an actual slot location on a chassis Figure 15 page 67 and Figure 16 page 68 illustrate the board s PCI slot numbering 61 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 2 8 2 2 Audio Power and Hardware Control Connectors Figure 13 shows the location of the audio power and hardware control connectors xjooooo0o00000j 11 w 000000000mwm i I H G OM13578 Item Description For more information see A Front panel audio Table 25 B Auxiliary line in ATAPI style white Table 26 C Rear chassis fan Table 27 D ATAPI CD ROM black Table 28 E 12 V power connector ATX12V Table 29 F Processor fan Table 30 G Main power Table 31 H Chassis intrusion Table 32 l Front chassis fan Table 33 Figure 13 Audio Power and Hardware Control Connectors 62 Technical Reference Figure 14 shows the location of the audio power and hardware control connectors on the Des
127. stom splash screen NOTE Review the instructions distributed with the upgrade utility before attempting a BIOS update For information about Refer to The Intel World Wide Web site Section 1 3 page 19 3 6 1 Language Support 90 The BIOS Setup program and help messages are supported in five languages US English German Italian French and Spanish The default language is US English which is present unless another language is selected in the BIOS Setup program Overview of BIOS Features 3 6 2 Custom Splash Screen During POST an Intel splash screen is displayed by default This splash screen can be replaced with a custom splash screen A utility is available from Intel to assist with creating a custom splash screen The custom splash screen can be programmed into the flash memory using the BIOS upgrade utility Information about this capability is available on the Intel Support World Wide Web site For information about Refer to The Intel World Wide Web site Section 1 3 page 19 3 7 Recovering BIOS Data Some types of failure can destroy the BIOS For example the data can be lost if a power outage occurs while the BIOS is being updated in flash memory The BIOS can be recovered from a diskette using the BIOS recovery mode When recovering the BIOS be aware of the following e Because of the small amount of code available in the non erasable boot block area there is no video support You can only monitor this proced
128. table interface for such operating systems Using this support an SMBIOS service level application running on a non Plug and Play operating system can obtain the SMBIOS information For information about Refer to The Desktop Boards compliance level with SMBIOS Section 1 5 page 20 3 5 Legacy USB Support Legacy USB support enables USB devices such as keyboards mice and hubs to be used even when the operating system s USB drivers are not yet available Legacy USB support is used to access the BIOS Setup program and to install an operating system that supports USB By default Legacy USB support is set to Enabled Legacy USB support operates as follows 1 When you apply power to the computer legacy support is disabled 2 POST begins 3 Legacy USB support is enabled by the BIOS allowing you to use a USB keyboard to enter and configure the BIOS Setup program and the maintenance menu 4 POST completes 5 The operating system loads While the operating system is loading USB keyboards and mice are recognized and may be used to configure the operating system Keyboards and mice are not recognized during this period if Legacy USB support was set to Disabled in the BIOS Setup program 6 After the operating system loads the USB drivers all legacy and non legacy USB devices are recognized by the operating system and Legacy USB support from the BIOS is no longer used 89 Intel Desktop Board D845GEBV2 D845GERG2 Technica
129. te OM15025 Description Thermal diode located on processor die Ambient temperature sensor internal to both hardware monitoring ASIC options Remote ambient temperature sensor Note Processor fan Rear chassis fan Front chassis fan This sensor is present only on Desktop Boards with the hardware monitoring and fan control ASIC Figure 10 Thermal Monitoring 43 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 1 13 2 Fan Monitoring Fan monitoring can be implemented using Intel Active Monitor Intel LANDesk Client Manager or third party software The level of monitoring and control is dependent on the hardware monitoring ASIC used with the Desktop Board For information about Refer to The functions of the fan connectors Section 1 14 2 2 page 48 1 13 3 Chassis Intrusion and Detection The Desktop Boards D845GEBV2 and D845GERG2 support a chassis security feature that detects if the chassis cover is removed The security feature uses a mechanical switch on the chassis that attaches to the chassis intrusion connector When the chassis cover is removed the mechanical switch is in the closed position 1 14 Power Management Power management is implemented at several levels including
130. terface e PS 2t keyboard and mouse ports e Three fan connectors continued 12 Product Description Table 2 Feature Summary continued BIOS Intel AMI BIOS resident in the 4 Mbit FWH Support for Advanced Configuration and Power Interface ACPI Plug and Play and SMBIOS Instantly Available PC Technology Support for PCI Local Bus Specification Revision 2 2 Suspend to RAM support Wake on PCI CNR RS 232 front panel PS 2 devices and USB ports Expansion Capabilities D845GEBV2 Six PCI bus add in card connectors SMBus routed to PCI bus connector 2 D845GERG2 Three PCI bus add in card connectors SMBus routed to PCI bus connector 2 For information about Refer to The board s compliance level with ACPI Plug and Play and SMBIOS Section 1 5 page 20 1 2 2 Manufacturing Options Table 3 describes the manufacturing options on the Desktop Boards D845GEBV2 and D845GERG2 Not every manufacturing option is available in all marketing channels Please contact your Intel representative to determine which manufacturing options are available to you Table 3 Manufacturing Options CNR Hardware Monitor Subsystem 10 100 LAN 10 100 1000 LAN One Communication and Networking Riser CNR connector slot shared with PCI bus connector 6 on the Desktop Board D845GEBV2 and with PCI bus connector 3 on the Desktop Board D845GERG2 Voltage sense to detect out of range power supply voltage
131. the MAC address 1 11 3 RJ 45 LAN Connector with Integrated LEDs Two LEDs are built into the RJ 45 LAN connector Table 12 describes the LED states when the Desktop Board is powered up and the 10 100 LAN subsystem is operating 39 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification On steady state LAN link is established Table 12 10 100 Ethernet LAN Connector LED States LED Color LED State Condition Green Off 10 Mbit sec data rate is selected On 100 Mbit sec data rate is selected Yellow Off LAN link is not established The computer is communicating with another computer on the LAN On brighter and pulsing Table 13 describes the LED states when the Desktop Board is powered up and the 10 100 1000 LAN subsystem is operating Table 13 10 100 1000 Ethernet LAN Connector LED States LED Color LED State Condition Green Yellow Off 10 Mbit sec data rate is selected Green 100 Mbit sec data rate is selected Yellow 1 Gbit sec data rate is selected Yellow Off LAN link is not established LAN link is established The computer is communicating with another computer on the LAN On steady state On brighter and pulsing 1 11 4 LAN Subsystem Software LAWN software and drivers are available from Intel s World Wide Web site For information about Refer to Obtaining LAN software and drivers Section 1 3 page 19 1 12 CNR Optional T
132. tors Figure 12 page 60 Product Description 1 10 Audio Subsystem The audio subsystem consists of the following devices e Intel 82801DB I O Controller Hub ICH4 e Analog Devices AD1981B audio codec The audio subsystem includes these features e Split digital analog architecture for improved S N signal to noise ratio 2 85 dB e Power management support for ACPI 2 0 driver dependant e Mono Stereo mic in pre amp that supports dynamic condenser and electret microphones The audio subsystem supports the following audio interfaces e ATAPI style connectors Auxiliary line in CD ROM e Front panel audio connector including pins for Line out Mic in mono or stereo e Back panel audio connectors Line out Linein Mic in mono or stereo Figure 8 is a block diagram of the audio subsystem it Line In Line Out gt 82801DB AC 97 AD1981B e VO E Hub a Link gt Audio Codec lt Mic In wg Auxiliary Line In pel CD ROM OM15116 Figure 8 Audio Subsystem Block Diagram For information about Refer to Upgrading the onboard audio subsystem using a CNR audio card Section 1 12 page 40 The front panel audio connector Section 2 8 2 2 page 62 The back panel audio connectors Section 2 8 1 page 60 37 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 1 10 1 Audio Connectors 1 10 1 1 Front Panel Audio Connector A 2 X 5 p
133. tries t Other names and brands may be claimed as the property of others Copyright 2002 Intel Corporation All rights reserved Preface This Technical Product Specification TPS specifies the board layout components connectors power and environmental requirements and the BIOS for these Intel Desktop Boards D845GEB V2 and D845GERG2 It describes the standard product and available manufacturing options Intended Audience The TPS is intended to provide detailed technical information about the Desktop Boards D845GEB V2 and D845GERG2 and their components to the vendors system integrators and other engineers and technicians who need this level of information It is specifically not intended for general audiences What This Document Contains Chapter Description 1 A description of the hardware used on the Desktop Boards D845GEBV2 and D845GERG2 A map of the resources of the Desktop Boards The features supported by the BIOS Setup program The contents of the BIOS Setup program s menus and submenus nan A U N A description of the BIOS error messages beep codes and POST codes Typographical Conventions This section contains information about the conventions used in this specification Not all of these symbols and abbreviations appear in all specifications of this type Notes Cautions and Warnings gt NOTE Notes call attention to important information S INTEGRATOR S NOTES Integrator s notes are
134. ttached to the cable Use shielded cable that meets the requirements for full speed devices gt NOTE USB 2 0 support has been tested with Windows 2000 and Windows XP drivers and is not currently supported by any other operating system For information about The location of the USB connectors on the back panel The location of the front panel USB connector The EHCI front panel UHCI and USB specifications Refer to Figure 12 page 60 Figure 17 page 69 Section 1 5 page 20 33 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 1 8 3 IDE Support 1 8 3 1 IDE Interfaces The ICH4 s IDE controller has two independent bus mastering IDE interfaces that can be independently enabled The IDE interfaces support the following modes e Programmed I O PIO processor controls data transfer e 8237 style DMA DMA offloads the processor supporting transfer rates of up to 16 MB sec e Ultra DMA DMA protocol on IDE bus supporting host and target throttling and transfer rates of up to 33 MB sec e ATA 66 DMA protocol on IDE bus supporting host and target throttling and transfer rates of up to 66 MB sec ATA 66 protocol is similar to Ultra DMA and is device driver compatible e ATA 100 DMA protocol on IDE bus allows host and target throttling The ICH4 s ATA 100 logic can achieve read transfer rates up to 100 MB sec and write transfer rates up to 88 MB sec NOTE ATA 66 and ATA 100 are faster timin
135. ubmenus Feature Options Description Drive Installed No options Displays the type of drive installed Type Auto default User Specifies the IDE configuration mode for IDE devices User allows capabilities to be changed Auto fills in capabilities from ATA ATAPI device Maximum Capacity No options Displays the capacity of the drive LBA Large Mode e Disabled Selects the translation mode for the IDE hard disk e Auto default This item is read only unless Type is set to User Block Mode e Disabled Disabled Data transfers to from the device occur one e Auto default sector at a time Auto Data transfers to from the device occur multiple sectors at a time if the device supports block mode transfers This item is read only unless Type is set to User PIO Mode e Auto default Specifies the PIO mode 0 A Go MM This item is read only unless Type is set to User 104 continued BIOS Setup Program Table 60 Primary Secondary IDE Master Slave Submenus continued Feature Options Description DMA Mode e Auto default Specifies the DMA mode for the drive e SWDMAO Auto Auto detected e SWDMA1 SWDMAn Single Word DMAn e SWDMA2 SWDMAn Multi Word DMAn e MWDMAO UDMAn Ultra DMAn e MWDMA1 e MWDMA2 This item is read only unless Type is set to User e UDMAO e UDMA1 e UDMA2 e UDMA3 e UDMA4 e UDMA5 S M A R T e Auto default Enables disables
136. upport a multichannel audio upgrade the Desktop Boards integrated audio codec will be disabled This only applies to DS45GEBV2 and D845GERG2 boards that have both the onboard audio subsystem and a CNR e The brand and type of audio codec used on the CNR card must match that of the Desktop Boards codec Analog Devices AD1981B e Check with your CNR vendor to ensure that the CNR card has been tested with ICH4 based systems e There is no USB interface routed to the CNR connector For information about Refer to Obtaining the CNR specification Section 1 5 page 20 41 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 1 13 Hardware Management Subsystem The hardware management features enable the Desktop Boards to be compatible with the Wired for Management WfM specification The Desktop Board has several hardware management features including the following e Fan monitoring and control through the I O controller or the hardware monitoring and fan control ASIC e Thermal and voltage monitoring e Chassis intrusion detection For information about Refer to The WfM specification Section 1 5 page 20 1 13 1 Hardware Monitoring ASICs The Desktop Boards provide one of the following e A hardware monitoring ASIC e A hardware monitoring and fan control ASIC The features of these components are described in this section Contact your Intel sales representative to determine which type of hardware m
137. uration Jumper SettingS sssssssereeeessesenerrrrrrssrrrrrrnnrrssrrrrrrrn n 73 ee 78 Standby Current Requirements AANEREN 79 Fan Connector Current Capability vc 2 hates eee ee eee Re bee 80 Thermal Considerations for Components cece eeeeeeeeeeeeeeeeteeeeeeeeeeeeeeneeeeeeeeeeteea 83 Desktop Board D845GEBV2 D845GERG2 Environmental Specifications 84 Safety FABQUIATIONS EE 85 EMG Regulations 120 4 lt u2 caus Rendandamuccanesen tate neangamasaea E nanny 85 Boot Device Menu Options i ccis cei seiadceces EA Retest ied eee nd e 92 Supervisor and User Password Functions cecccccceeeeeeeenneeeeeeeeeseaeeeeeeeeeessnnaeeeeeeees 94 BIOS Setup Program Menu geess eege Ne 95 BIOS Setup Program Function Keys s 2 sccnaswh ease aed eee 96 Maintenance Menu sssssssssssssssssssssssnsnsnsasasssssssareererrtrererreererererereeerereressssssssssnss 96 Main Menu sepia a a a a eaaa aa anaia ae Eas 97 Advanced MOM iene coerce ie ae eee ar ee 98 PCI Configuration Submenu ee 99 Boot Configuration SUBMENU ses scicec cesta dicetenxthieeeieh ae aceeieeedaetn interne 100 Peripheral Configuration Gubmenu net 101 IDE Configuration Submenu eier een ENEE 103 Primary Secondary IDE Master Slave Gubmenus eee eeeeetteeee rete 104 Diskette Configuration SUDMENU ANEN 106 Event Log Configuration SubMenu Au 107 Video Configuration SUBMENU ge AA Eed EE EE 108 USB COnIGUraTION ET e TEE 109 Intel Desktop Board D845GEBV2 D845GERG2 Technic
138. ure by listening to the speaker or looking at the diskette drive LED e The recovery process may take several minutes larger BIOS flash memory devices require more time e Two beeps and the end of activity in the diskette drive indicate successful BIOS recovery e A series of continuous beeps indicates a failed BIOS recovery To create a BIOS recovery diskette a bootable diskette must be created and the BIOS update files copied to it BIOS upgrades and the Intel Flash Memory Update Utility are available from Intel Customer Support through the Intel World Wide Web site gt NOTE Even if the computer is configured to boot from an LS 120 diskette in the Setup program s Removable Devices submenu the BIOS recovery diskette must be a standard 1 44 MB diskette not a 120 MB diskette For information about Refer to The BIOS recovery mode jumper settings Section 2 9 2 page 73 The Boot menu in the BIOS Setup program Section 4 7 page 115 Contacting Intel customer support Section 1 3 page 19 91 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 3 8 Boot Options In the BIOS Setup program the user can choose to boot from a diskette drive hard drives CD ROM or the network The default setting is for the diskette drive to be the first boot device the hard drive second and the ATAPI CD ROM third The fourth device is disabled 3 8 1 CD ROM Boot Booting from CD ROM is supported in compliance to t
139. ures Table 63 Video Configuration Submenu Feature Options Description Graphics Aperture Size e 4 MB 8 MB 16 MB 32 MB 64 MB default 128 MB Sets the aperture size for the video controller e 256 MB Primary Video Adapter e AGP default Selects primary video adapter to be used during e PCI boot Frame Buffer Size 512 KB default 1MB 8 MB Control how much system RAM is reserved for use by the internal graphics device A larger frame buffer should provide higher performance BIOS Setup Program 4 4 8 USB Configuration Submenu To access this menu select Advanced on the menu bar and then USB Configuration Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration Fan Control Configuration The submenu represented in Table 64 is for configuring the USB features Table 64 USB Configuration Submenu Feature Options Description High speed USB e Disabled Set to Disabled when a USB 2 0 driver is not e Enabled default available Legacy USB Support e Disabled Enables disables legacy USB support e Enabled default 109 Intel Desktop Board D845GEBV2 D845GERG2 Technical Product Specification 4 4 9 Chipset Configuration Submenu To a
140. vice Optional S Rear chassis fan connector T ATAPI CD ROM connector U Front chassis fan connector Back panel connectors V 12V power connector ATX12V W mPGA478 processor socket X Processor fan connector Y Intel 82845GE Graphics and Memory Controller Hub Z GMCHh DIMM sockets I O Controller Power connector IDE connectors Speaker Battery SCSI LED connector Chassis intrusion connector BIOS Setup configuration jumper block Auxiliary front panel power LED connector 4 Mbit Firmware Hub FWH Front panel connector Intel 82801DB I O Controller Hub CHA AA Front panel USB connector BB AGP connector CC PCI bus add in card connectors Diskette drive connector DD CNR connector optional Figure 1 Desktop Board D845GEBV2 Components Product Description Figure 2 shows the location of the major components on the Desktop Board D845GERG2 AB C D F G E dzo 2 2 EE E d d S H DD 1 O Ort V f CC BB pa o AA L Ce J Z ie K FL y L A T S W VUTS R Q P O N M OM15021 A Audio codec P IDE connectors B Front pan
141. ving changes 92 Overview of BIOS Features 3 9 Fast Booting Systems with Intel Rapid BIOS Boot These factors affect system boot speed e Selecting and configuring peripherals properly e Using an optimized BIOS such as the Intel Rapid BIOS 3 9 1 Peripheral Selection and Configuration The following techniques help improve system boot speed e Choose a hard drive with parameters such as power up to data ready less than eight seconds that minimize hard drive startup delays e Select a CD ROM drive with a fast initialization rate This rate can influence POST execution time e Eliminate unnecessary add in adapter features such as logo displays screen repaints or mode changes in POST These features may add time to the boot process e Try different monitors Some monitors initialize and communicate with the BIOS more quickly which enables the system to boot more quickly 3 9 2 Intel Rapid BIOS Boot Use of the following BIOS Setup program settings reduces the POST execution time In the Boot Menu e Set the hard disk drive as the first boot device As a result the POST does not first seek a diskette drive which saves about one second from the POST execution time e Disable Quiet Boot which eliminates display of the logo splash screen This could save several seconds of painting complex graphic images and changing video modes e Enabled Intel Rapid BIOS Boot This feature bypasses memory count and the search for
142. y the power on message 38 Different buses init input IPL general devices to start if present See Section 5 3 for details of different buses 39 Display different buses initialization error messages See Section 5 3 for details of different buses 3A New cursor position read and saved To display the Hit lt DEL gt message continued Error Messages and Beep Codes Table 79 Runtime Code Uncompressed in F000 Shadow RAM continued Code Description of POST Operation 40 To prepare the descriptor tables 42 To enter in virtual mode for memory test 43 To enable interrupts for diagnostics mode 44 To initialize data to check memory wrap around at 0 0 45 Data initialized Going to check for memory wrap around at 0 0 and finding the total system memory size 46 Memory wrap around test done Memory size calculation over About to go for writing patterns to test memory 47 Pattern to be tested written in extended memory Going to write patterns in base 640k memory 48 Patterns written in base memory Going to find out amount of memory below 1M memory 49 Amount of memory below 1M found and verified Going to find out amount of memory above 1M memory 4B Amount of memory above 1M found and verified Check for soft reset and going to clear memory _ below 1M for soft reset If power on go to check point 4Eh 4C Memory below 1M cleared SOFT RESET Going to

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