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ASUS F2A55M_LK2_PLUS Owner's Manual

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1. sasas 1 3 1 Placement dire ron 6 asa sana 1 3 2 GEES 1 3 3 00 10080018000 1 3 4 Layout el 1 4 Accelerated Processing Unit APU rien 1 7 1 4 1 APU pelen a ssaa iaia ia 1 8 1 4 2 APU heatsink and fan assembly installation 1 9 1 5 System mMemofy ai 1 5 1 Overview 1 5 2 Memory configurations iii 1 12 1 5 3 Installing a DIMM iii 1 16 1 6 088101191019 4 2 aiiis iai 1 17 1 6 1 Installing an expansion card 1 17 1 6 2 Configuring an expansion Card 1 17 1 6 3 PG S0 EE 1 17 1 6 4 PGLExpressixiisioti unia lia 1 17 1 6 5 PGl Express X16 Sloti ic beer 1 17 dE 18 e 1 8 1 Rear panel ports 1 8 2 Internal connectors iiriiiiii iii 1 22 VE WE EK ia e 1 28 1 9 1 Installing an operating system 1 28 1 9 2 Support DVD information BIOS information 2 1 2 2 2 3 2 4 2 5 2 6 Managing and updating your BIOS 2 1 2 1 1 ASUS Update Utility ii 2 1 e ET 2 2 2 1 3 ASUS CrashFree BIOS 3 ut 2 3 214 ASUS BIOS Updater Pi BIOS setup programa NAUNA nis i ahaha OTT UE 2 3 1 System Language English ANE 2 10 2 3 2 System Date Day 6 2 10 2 3 3 System Time 6 20 iii 2
2. 44 jonpoad oy yey sarejoap Aqaray SSSP BO9 OTS LLLE GEL OIS ON XBy ouoyd 6 SF6 VI 300 4 Aem HeIdI 008 sso1ppy euogeus9zuy 31100007 snsy aweN Aeg aqIsuodsay LLOI 7 90152 7 Med DIA Pd ALINYOANOD HO NOILVAV TOAGA Appendices A 4
3. 4x Serial ATA 3 0Gb s connectors support RAID 0 RAID 1 RAID 10 and JBOD configurations Realtek 8111F PCle Gigabit LAN controller Realtek ALC887 VD 8 channel High Definition Audio CODEC Use a chassis with HD audio module in the front panel to support an 8 channel audio output AMD A55 FCH 8x USB 2 0 1 1 ports 4 ports at the mid board 4 ports at the back panel continued on the next page F2A55 M LK Series specifications summary ASUS unique features Special features Back Panel I O ports Internal VO connectors buttons switches Support DVD Form factor ASUS DIGI VRM ASUS 3 2 Phase Power Design Network iControl ASUS EPU ASUS Al Suite II ASUS UEFI BIOS EZ Mode ASUS Anti Surge Protection ASUS Fan Xpert ASUS CrashFree BIOS 3 ASUS EZ Flash 2 ASUS MyLogo 2 100 All high quality conductive polymer F2A55 M LK2 PLUS only 1 x PS 2 mouse port green 1 x PS 2 keyboard port purple 1 x DVI D port 1 x D Sub output port 1 x LAN RJ 45 port 4x USB 2 0 1 1 ports 8 channel audio I O ports 3 jack 2x USB 2 0 1 1 connectors support additional 4 USB 2 0 1 1 ports 4 x SATA 3 0Gb s connectors 1 x COM connector 1 x System panel connector 1 x Internal Speaker connector 1 x CPU fan connector 4 pin 1 x S PDIF output connector 1 x Chassis fan connector 3 pin 1 x Front panel audio connector 1 x 24 pin EATX power connector 1 x 4 pin ATX 12V power conne
4. KFC8FNMXF BXX 15A FLFE85F B8KL9 NEES 2GB KINGMAX KKB8FNWBFGNX 26A FLFF65F C8KL9 NEES 4GB KINGMAX KFC8FNLXF DXX 15A FLFF65F C8KM9 NEES 4GB KINGMAX KFC8FNMXF BXX 15A KVR1333D3N9 2G low profile KVR1333D3S8N9 2G 2GB 2GB H Micron H5TQ2G83AFRH9C 077 D9LGK 1 5V KVR1333D3S8N9 2G SP low profile 2GB ss ELPIDA J2108BCSE DJ F 1 5V KVR1333D3N9 2G low profile 2GB ELPIDA J1108BFBG DJ F 1 5V KVR1333D3N9 2G 2GB DS KTC D1288JPNDPLD9U 1 5V KVR1333D3N9 2G 2GB DS ELPIDA J1108BDSE DJ F 1 5V KVR1333D3N9 2G SP low profile 2GB DS KTC D1288JEMFNGD9U 1 5V KVR1333D3N9 2G SP low profile 2GB DS KINGSTON D1288JPSFPGD9U 1 5V KHX1333C7D3K2 4GX XMP 4GB 2x2GB DS 1 65V KHX1333C9D3UK2 4GX XMP 4GB 2x2GB DS XMP 1 25V KVR1333D3N9 4G low profile 4GB DS ELPIDA J2108BCSE DJ F 1 5V KVR1333D3N9 4G low profile 4GB DS ELPIDA J2108BCSE DJ F 1 5V KVR1333D3N9 4G 4GB DS KTC D2568JENCNGD9U 1 5V KVR1333D3N9 4G 4GB DS Hynix H5TQ2G83AFR KVR1333D3N9 4G SP low profile 4GB DS KINGSTON D2568JENCPGD9U MT8JTF25664AZ 1G4D1 2GB Micron 0JD12D9LGK MT8JTF25664AZ 1G4M1 MT16JTF25664AZ 1G4F1 2GB 2GB MICRON Micron IJM22 D9PFJ 9KF27D9KPT MT16JTF51264AZ 1G4D1 4GB Micron OLD22D9LGK NT4GC64B8
5. This 2 pin connector is for the chassis mounted reset button for system reboot without turning off the system power 5 Speaker connector 4 pin SPEAKER The 4 pin connector is for the chassis mounted system warning speaker The speaker allows you to hear system beeps and warnings SPEAKER 3 5 Phos BE nus s005 o 2555 da LL loda ESS SOGO F2A55 M LK2 PLUS Speaker Out Connector ASUS F2A55 M LK2 Series 1 25 1 26 Digital audio connector 4 1 pin SPDIF_OUT This connector is for an additional Sony Philips Digital Interface S PDIF port SPDIFOUT G a E 5V LI al sla SPDIF OUT YA The S PDIF module is purchased separately Front panel audio connector 10 1 pin AAFP This connector is for a chassis mounted front panel audio I O module that supports either High Definition Audio or AC 97 audio standard Connect one end of the front panel audio UO module cable to this connector E E Si E E DI Ww co o 2 2 2 Zz Ki gow w o i o lt Z0 O zz Z AAFP alalalale LUL TITTI enit TT UA 25 6 S852 reuzo OS E E E o r 253 8 OOOO o g 6 amp 2s D Z D HD audio compliant Legacy AC 97 pin
6. Where to find more information Refer to the following sources for additional information and for product and software updates 1 ASUS websites The ASUS website provides updated information on ASUS hardware and software products Refer to the ASUS contact information Optional documentation Your product package may include optional documentation such as warranty flyers that may have been added by your dealer These documents are not part of the standard package vii viii Conventions used in this guide To ensure that you perform certain tasks properly take note of the following symbols used throughout this manual A DANGER WARNING Information to prevent injury to yourself when trying to 4 complete a task CAUTION Information to prevent damage to the components when trying to a complete a task f IMPORTANT Instructions that you MUST follow to complete a task YA NOTE Tips and additional information to help you complete a task Typography Bold text Indicates a menu or an item to select Italics Used to emphasize a word or a phrase lt Key gt Keys enclosed in the less than and greater than sign means that you must press the enclosed key Example lt Enter gt means that you must press the Enter or Return key lt Key1 gt lt Key2 gt lt Key3 gt If you must press two or more keys simultaneously the key names are linked with a plus sign F2A55 M LK2 Series specifications summary C
7. Yes No Platform Key PK Load PK from File Configuration options Acpi a0341d0 0 PCI 1212 USB 2 ON Copy PK to File Configuration options OK Delete the PK Configuration options Yes No KEK Management KEK Load KEK from File Configuration options OK Copy KEK to File Configuration options OK Delete the KEK Configuration options Yes No Append KEK from File Configuration options OK 2 28 ASUS F2A55 M LK2 Series DB Management Load DB from File Configuration options OK Copy DB to File Configuration options OK Delete the DB Configuration options Yes No Append DB from File Configuration options OK DBX Management Load DBX from File Configuration options OK Copy DBX to File Configuration options OK Delete the DBX Configuration options Yes No Append DBX from File Configuration options OK 2 7 10 Boot Option Priorities These items specify the boot device priority sequence from the available devices The number of device items that appears on the screen depends on the number of devices installed in the system YA To select the boot device during system startup press lt F8 gt when ASUS Logo appears Toaccess Windows OS in Safe Mode press lt F8 gt after POST 2 7 11 Boot Override These items displays the available devices The number of device items that appears on the screen depends on the number of devices installed i
8. gt keys to adjust the time Hour Minute Second Allows you to set the RTC alarm time Use lt gt and lt gt keys to adjust the time Chapter 2 BIOS information 2 21 2 5 7 Network Stack Network Stack Disable Link This item allows user to disable or enable the UEFI network stack Configuration options Disable Link Enabled Ipv4 PXE Support Enabled This item appears only when you set the Network Stack item to Enabled When this item is disabled the IPV4 PXE boot option will not be created Configuration options Disable Link Enabled Ipv6 PXE Support Enabled This item appears only when you set the Network Stack item to Enabled When this item is disabled the IPV6 PXE boot option will not be created Configuration options Disable Link Enabled 2 22 ASUS F2A55 M LK2 Series 2 6 Monitor menu The Monitor menu displays the system temperature power status and allows you to change the fan settings LEG CAD Spend KEE CRI Ten Control Fan Speed Low Lielt Fas Profile CPU 3 Voltage Unltage 120 1 feti Serpe Support 2 6 1 CPU Temperature MB Temperature xxx C xxx F The onboard hardware monitor automatically detects and displays the CPU and motherboard temperatures Select Ignore if you do not wish to display the detected temperatures 2 6 2 CPU Chassis fan Speed xxxx RPM or Ignore N A The onboard hardware monitor automatica
9. If you intend to use a PSU with 20 pin and 4 pin power plugs ensure that the 20 pin power plug can provide at least 15 A on 12 V and that the PSU has a minimum power rating of 300W The system may become unstable or may not boot up if the power is inadequate DO NOT forget to connect the 4 pin ATX 12V power plug Otherwise the system will not boot up We recommend that you use a PSU with higher power output when configuring a system with more power consuming devices or when you intend to install additional devices The system may become unstable or may not boot up if the power is inadequate If you are uncertain about the minimum power supply requirement for your system refer to the Recommended Power Supply Wattage Calculator at http support asus com PowerSupplyCalculator PSCalculator aspx SLanquage en us for details ASUS F2A55 M LK2 Series 1 23 1 24 3 Serial ATA 3 0 Gb s connectors 7 pin SATA3G 1 4 These connectors are for the Serial ATA 3 0 Gb s signal cables for Serial ATA hard disk drives and optical disc drives If you installed Serial ATA hard disk drives you can create a RAID 0 RAID 1 or RAID 10 configuration through the onboard controller SATA3G_1 F2A55 M LK2 PLUS SATA 3 0Gb s connectors A These connectors are set to AHCI mode by default If you intend to create a Serial ATA RAID set using these connectors set the type of the
10. a 5 5 CHA_FAN ao LIE 588 a e BYO O of om mi SS F2A55 M LK2 PLUS Fan connectors DO NOT forget to connect the fan cables to the fan connectors Insufficient air flow inside the system may damage the motherboard components These are not jumpers DO NOT place jumper caps on the fan connectors YA The CPU FAN connector supports a CPU fan of maximum 2A 24 W fan power Only the CPU_FAN connector support the ASUS Fan Xpert feature 1 22 Chapter 1 Product introduction 2 ATX power connectors 24 pin EATXPWR 4 pin ATX12V These connectors are for an ATX power supply The plugs from the power supply are designed to fit these connectors in only one orientation Find the proper orientation and push down firmly until the connectors completely fit ATX12V EATXPWR 3 Volts d GND 12 Volts 5 Volts 12 VoltsC 5 Volts 5V Standby C 5 Volts Power OK H 5 Volts GND GND 5 Volts GND GND i GND 5 Volts C PSON GND GND 3 Volts 12 Volts 3 bie C I Volts F2A55 M LK2 PLUS ATX power connectors 12V DC 12V DC AN We recommend that you use an ATX 12V Specification 2 0 compliant power supply unit PSU with a minimum of 300W power rating This PSU type has 24 pin and 4 pin power plugs
11. 1866MHz DDR3 2133MHz DDR3 2400MHz Selecting a very high memory frequency may cause the system to become unstable If this eS happens revert to the default setting 2 43 APU Multiplier Auto Allows you to set the multiplier between the CPU Core Clock and the FSB Frequency Use the lt gt and lt gt keys to adjust the ratio The valid value ranges vary according to your CPU model 2 4 4 NB Frequency Auto Allows you to adjust the NB frequency Use the lt gt and lt gt keys to adjust the value You can also key in the desired value using the numeric keypad 2 4 5 EPU Power Saving Mode Disabled Allows you to enable or disable the EPU power saving function Configuration options Disabled Enabled EPU Setting Auto This item appears only when The EPU Power Saving Mode is set to Enabled and allows you to set power saving mode Configuration options Auto Light Power Saving Mode Medium Power Saving Mode Max Power Saving Mode Chapter 2 BIOS information 2 13 2 14 2 4 6 DRAM Timing Control The sub items in this menu allow you to set the DRAM timing control features Use the lt gt and lt gt keys to adjust the value To restore the default setting type auto using the keyboard and press lt Enter gt Changing the values in this menu may cause the system to become unstable If this A happens revert to the default settings 2 4 7 CPU Voltage Offset Mode Offset Mode To of
12. CPU working voltage will decrease proportionally to CPU loading Higher load line calibration would get higher voltage and better overclocking performance but increase the CPU and VRM thermal This item allows you to adjust the voltage range from the following percentages to boost the system performance Configuration options Auto Regular Medium High Extreme YA The actual performance boost may vary depending on your CPU specifiation CPU NB Load Line Calibration Auto Allows you to select the CPU NB Load Line Calibration mode Configuration options Auto Regular High Extreme CPU Current Capability 100 This item provides wider total power range for overclocking A higher value brings a wider total power range and extends the overclocking frequency range simultaneously Configuration options 100 110 120 130 CPU NB Current Capability 100 This item provides wider total power range for overclocking A higher value brings a wider total power range and extends the overclocking frequency range simultaneously Configuration options 100 110 120 130 CPU Power Phase Conirol Standard Phase number is the number of working VRM phase Increasing phase number under heavy system loading to get more transient and better thermal performance Reducing phase number under light system loading to increase VRM efficiency Standard Proceeds phase control depending on the CPU loading Optimized Loads the A
13. KHX1600C10D3B1K2 16G 16GB 8GB x 2 1 5V KHX16C9K2 16 16GB 8GB x 2 1 5V KHX1600C9AD3 2G 2GB 1 65V KVR1600D3N11 2G ES 2GB D1288JPN DPLD9U 1 35V 1 5V KHX1600C7D3K2 4GX XMP 4GB 2 x 2GB 1 65V KHX1600C8D3K2 4GX XMP 4GB 2 x 2GB 1 65V KHX1600C8D3T1K2 4GX XMP 4GB 2 x 2GB 1 65V KHX1600C9D3K2 4GX XMP KHX1600C9D3LK2 4GX XMP 4GB 2 x 2GB 4GB 2 x 2GB 1 65V XMP 1 35V KHX1600C9D3X2K2 4GX XMP 4GB 2 x 2GB 1 65V KHX1600C9D3T1K3 6GX XMP 6GB 3 x 2GB 1 65V KHX1600C9D3K3 6GX XMP 6GB 3 x 2GB 1 65V KHX1600C9D3T1BK3 6GX XMP 6GB 3 x 2GB 1 65V KHX1600C9D3K2 8GX XMP 8GB 2 x 4GB 1 65V KHX1600C9D3P1K2 8G WA160UX6G9 8GB 2 x 4GB 6GB 3 x 2GB 1 5V SMD 4G68HP 16KZ 4GB HYNIX H5TQ2G83 BFR PBC 78 B1GE3 9L10C 4GB Apacer KZZC AM5D5908 DEGSCK KHX1600C10D3B1K2 16G 16GB 8GB x 2 KHX16C9K2 16 16GB 8GB x 2 M2X8G64CB8HB5N DG XMP ASUS F2A55 M LK2 Series 8GB Elixir 1213 N2CB4G8 BOBN DG 1 13 1 14 Part No AD3U1333C2G9 AM2U139C2P1 DDR3 1333 MHz capability SS Chip Brand Chip NO SS A DATA 2GB ss Timing 3CCD 1509HNA1126L 3CCD 1509AEL1127T DIMM socket support Voltage Optional 1 DIMM 2 DIMMs AX3U1333C2G9 BP 2GB ss AXDU1333GC2G9 2G XMP 4GB 2x2GB SS 9 9 9 24 1 25V 1 35V low voltage AD631
14. card USB card and other cards that comply with PCI specifications 1 6 4 PCI Express x1 slot This motherboard supports PCI Express x1 network cards SCSI cards and other cards that comply with the PCI Express specifications 1 6 5 PCI Express x16 slot This motherboard supports one PCI Express x16 graphics card that complies with the PCI Express specifications ASUS F2A55 M LK2 Series 1 17 1 18 IRQ assignments for this motherboard PCIEx16_1 PCIEx1_1 611 slot Realtek LAN controller shared HD audio shared SATA controller On Chip USB EHCI 1 2 3 shared On Chip USB OHCI 29 Chapter 1 Product introduction 1 7 Jumpers Clear RTC RAM CLRTC This jumper allows you to clear the Real Time Clock RTC RAM in CMOS You can clear the CMOS memory of date time and system setup parameters by erasing the CMOS RTC RAM data The onboard button cell battery powers the RAM data in CMOS which include system setup information such as system passwords CLRTC 12 23 D Normal Clear RTC Default F2A55 M LK2 PLUS Clear RTC RAM To erase the RTC RAM 1 Turn OFF the computer and unplug the power cord 2 Move the jumper cap from pins 1 2 default to pins 2 3 Keep the cap on pins 2 3 for about 5 10 seconds then move the cap back to pins 1 2 3 Plug the power cord and turn ON the computer 4 Hold down the lt Del gt key
15. click ASUS Update from the popup menu The ASUS Update main screen appears From the list select either of the following methods Chapter 2 BIOS information 2 1 Updating from the Internet a Select Update BIOS from the Internet then click Next b Select the ASUS FTP site nearest you to avoid network traffic then click Next c From the FTP site select the BIOS version that you wish to download then click Next The ASUS Update utility is capable of updating itself through the Internet Always update the utility to avail all its features Updating from a BIOS file a Select Update BIOS from file then click Next b Locate the BIOS file from the Open window then click Open 3 Follow the onscreen instructions to complete the updating process 2 1 2 ASUS EZ Flash 2 The ASUS EZ Flash 2 feature allows you to update the BIOS without using an OS based utility Before you start using this utility download the latest BIOS file from the ASUS website at www asus com To update the BIOS using EZ Flash 2 1 Insert the USB flash disk that contains the latest BIOS file to the USB port 2 Enter the Advanced Mode of the BIOS setup program Go to the Tool menu to select ASUS EZ Flash 2 Utility and press lt Enter gt to enable it 3 Press lt Tab gt to switch to the Drive field 4 Press the Up Down arrow keys to find the USB flash disk that contains the latest BIOS and then press lt Enter gt 5 Press lt Tab gt to swit
16. during the boot process and enter BIOS setup to reenter data Except when clearing the RTC RAM never remove the cap on CLRTC jumper default position Removing the cap will cause system boot failure YA If the steps above do not help remove the onboard battery and move the jumper lt lt again to clear the CMOS RTC RAM data After clearing the CMOS reinstall the battery You do not need to clear the RTC when the system hangs due to overclocking For system failure due to overclocking use the CPU Parameter Recall C P R feature Shut down and reboot the system so the BIOS can automatically reset parameter settings to default values ASUS F2A55 M LK2 Series 1 19 2 USB device wake up 3 pin USBPW1 4 3 pin USBPW5 8 Set these jumpers to 5V to wake up the computer from S1 sleep mode CPU stopped DRAM refreshed system running in low power mode using the connected USB devices Set to 5VSB to wake up from S3 and S4 sleep modes no power to CPU DRAM in slow refresh power supply in reduced power mode USBPW1 4 1 2 23 5V 5VSB Default USBPW5 8 12 nG 5V 5VSB Default F2A55 M LK2 PLUS USB Device Wake Up A The USB device wake up feature requires a power supply that can provide 500mA on the 5VSB lead for each USB port otherwise the system would not power up The total current consumed must NOT exceed the power supply capability 5VSB whether under no
17. mode to legacy AC 97 or high definition audio depending on the audio standard that the front panel audio module supports HD Sets the front panel audio connector AAFP mode to high definition audio AC97 Sets the front panel audio connector AAFP mode to legacy AC 97 SPDIF Out Type SPDIF SPDIF Sets to SPDIF for SPDIF audio output HDMI Sets to HDMI for HDMI audio output Realtek LAN Controller Enabled Enabled Enables the Realtek LAN controller Disabled Disables the controller Realtek PXE OPROM Disabled This item appears only when you set the Realtek LAN Controller item to Enabled and allows you to enable or disable the Rom Help of the Realtek LAN controller Configuration options Enabled Disabled Serial Port Configuration The sub items in this menu allow you to set the serial port configuration Serial Port Enabled Allows you to enable or disable the serial port COM Configuration options Enabled Disabled Change Settings Auto Allows you to select the Serial Port base address Configuration options Auto IO 3F8h IRQ 4 IO 2F8h IRQ 3 IO 3E8h IRQ 4 IO 2E8h IRQ 3 2 20 ASUS F2A55 M LK2 Series 2 5 6 APM Restore AC Power Loss Power Off Power On The system goes into on state after an AC power loss Power Off The system goes into off state after an AC power loss Last State The system goes into either off or on state whatever the system state was before th
18. the frequencies and related voltages remotely control the system via a mobile device and other easy to use helpful utilities ASUS Fan Xpert ASUS Fan Xpert intelligently allows you to adjust the CPU fan speed based on different ambient temperatures resulting to a quiet and cool computing environment ASUS EZ Flash 2 ASUS EZ Flash 2 is a user friendly utility that allows you to update the BIOS without using a bootable floppy disk or an OS based utility ASUS MyLogo2 Turn your favorite photos into 256 color boot logos to personalize your system ASUS CrashFree BIOS 3 ASUS CrashFree BIOS 3 allows you to restore a corrupted BIOS file from a USB storage device that contains the BIOS file C P R CPU Parameter Recall The BIOS C P R feature automatically restores the CPU default settings when the system hangs due to overclocking failure C P R eliminates the need to open the system chassis and clear the RTC data Simply shut down and reboot the system and the BIOS automatically restores the CPU parameters to their default settings ErP ready The motherboard is European Union s Energy related Products ErP ready and ErP requires products to meet certain energy efficiency requirements in regards to energy consumptions This is in line with ASUS vision of creating environment friendly and energy efficient products through product design and innovation to reduce carbon footprint of the product and thus mitigate environmental impa
19. 0 or later the utility automatically exits to the DOS prompt after updating BIOS Ensure to load the BIOS default settings to ensure system compatibility and stability Select the Load Optimized Defaults item under the Exit menu Refer to section 2 9 Exit menu for details Ensure to connect all SATA hard disk drives after updating the BIOS file if you have disconnected them Chapter 2 BIOS information 2 5 2 2 BIOS setup program Use the BIOS Setup program to update the BIOS or configure its parameters The BIOS screens include navigation keys and brief online help to guide you in using the BIOS Setup program Entering BIOS Setup at startup To enter BIOS Setup at startup Press lt Delete gt during the Power On Self Test POST If you do not press lt Delete gt POST continues with its routines Entering BIOS Setup after POST To enter BIOS Setup after POST Press lt Ctrl gt lt Alt gt lt Del gt simultaneously Press the reset button on the system chassis Press the power button to turn the system off then back on Do this option only if you failed to enter BIOS Setup using the first two options Using the power button reset button or the lt Ctrl gt lt Alt gt lt Del gt keys to force reset from LJ a running operating system can cause damage to your data or system We recommend to always shut down the system properly from the operating system The BIOS setup screens shown in this sectio
20. 10 2 34 Security Ai Tweaker menu 2 4 1 Ai Overclock Tuner I Auto ENEE ENNEN 2 13 2 4 2 Memory Frequency Auto X aman 2 13 2 4 3 APU Multiplier Auto namamana aaa aaa i 2 13 2 4 4 NB Frequency Auto 2 13 2 4 5 EPU Power Saving Mode Disabled 2 13 2 4 6 DRAM Timing Control 2 14 2 4 7 CPU Voltage Offset Mode 2 14 2 4 8 DRAM Voltage 0000 2 14 2 4 9 SB TAV Voltage AUto i 2 14 2410 06160 nananana MAAARI aah 2 15 Advanced menu 2 5 1 CPU Configuration namna Naga ARAN ALLAN 2 17 2 5 2 SATA Configurationi cares nunca naan 2 18 2 5 3 USB ConfiguratiGiN an Kia iaia 2 19 2 5 4 NB Configuration 2 5 5 Onboard Devices Configuration Shop APEM maana iais ai ba sa iai ii is 2 5 7 Network SS E e EA ld 2 6 1 CPU Temperature MB Temperature 2 23 2 6 2 CPU Chassis fan Speed xxxx RPM or Ignore N A 2 23 2 6 3 __ CPU Q Fan Control Enabled AA 2 23 2 6 4 CPU Voltage 3 3V Voltage 5V Voltage 12V Voltage 2 24 2 6 5 Anti Surge Support Enabled ANEN 2 24 2 7 Book MENU naaa i i 2 7 1 Fast Boot Enabled lt i iii 2 7 2 Full Screen Logo Enabled 2 7 3 Post Delay Time 3 SEC rire 8 2 7 4 Bootup
21. 1C1624EV 4GB DS 3CCA 1509A AM2U139C4P2 SU3U1333W8G9 B 4GB DS 8GB DS ELPIDA 3CCD 1509A EL1127T J4208BASE DJ F 78 A1GC6 9L1 2GB DS Apacer AM5D5808DEWSBG 78 A1GC6 9L1 2GB DS Apacer AM5D5808FEQSBG AU02GFA33C9NBGC 2GB DS Apacer AMSD5808APQSBG 78 B1GDE 9L10C 4GB DS Apacer AM5D5908CEHSBG TR3X6G1333C9 G 6GB 3x 2GB SS CMD24GX3M6A1333C9 XMP 24GB 6x4GB DS TW3X4G1333C9D G 4GB 2x 2GB DS CM3X4GA1333C9N2 4GB DS CORSAIR 256MBDCJGELC040 1136 CMX4GX3M1A1333C9 4GB DS CMD8GX3M4A1333C7 8GB 4x 2GB DS CT25664BA1339 16FF BL25664BN1337 16FF XMP 2GB DS 6GB 3 x 2GB Micron 9KF27D9KPT 1 65V EBJ21UE8EDFO0 DJ F 2GB ELPIDA J1108EDSE DJ F 1 35V low voltage F3 10666CL8D 4GBECO XMP 4GB 2 x 2GB 8 8 8 24 XMP 1 35V F3 10666CL7D 8GBRH XMP 8GB 2 x 4GB 7 7 7 21 1 5V GG34GB1333C9DC GV34GB1333C9DC 4GB 2 x 2GB 4GB 2 x 2GB GLIL128M88BA12N 9 9 9 24 1 3V low voltage 1 5V GVP34GB1333C7DC 4GB 2 x 2GB 1 5V HMT325U6BFR8C H9 2GB Hynix H5TQ2G83BFRH9C HMT125U6TFR8A H9 2GB Hynix H5TC1G83TFRH9A 1 35V low voltage HMT351U6BFR8C H9 4GB Hynix H5TQ2G83BFRH9C FLFE85F C8KF9 CAES 2GB KINGMAX KFC8FMFXF DXX 15A FLFE85F C8KL9 NAES 2GB KINGMAX KFC8FNLXF DXX 15A FLFE85F C8KM9 NAES 2GB KINGMAX
22. A3G_4 D Ka HERE FE em Gelli gt y 1 6 Chapter 1 Product introduction 1 3 4 Layout contents Connectors Jumpers Slots LED Keyboard power 3 pin KBPWR ATX power connectors 24 pin EATXPWR 4 pin ATX12V AMD FM2 socket CPU fan connector 4 pin CPU FAN DDR3 DIMM slots SATA 3 0Gb s connectors 7 pin SATA3G 1 4 Clear RTC RAM 3 pin CLRTC System panel connector 10 1 pin F_PANEL Speaker connector 4 pin SPEAKER USB 2 0 connectors 10 1 pin USB56 USB78 Serial port connector 10 1 pin COM Digital audio connector 4 1 pin SPDIF_OUT Front panel audio connector 10 1 pin AAFP Standby power LED SB_PWR Chassis fan connector 3 pin CHA_FAN USB device wake up 3 pin USBPW1 4 3 pin USBPW5 8 1 2 3 4 5 6 7 8 1 4 Accelerated Processing Unit APU This motherboard comes with an FM2 socket designed for AMD A series accelerated processors with AMD Radeon HD 7000 series graphics q Ensure that you use a APU designed for the FM2 socket The APU fits in only one correct 4 orientation DO NOT force the APU into the socket to prevent bending the pins and damaging the APU a O Bi Rd o i g SA LIS D O 7 ooo wm cen F2A55 M LK2 PLUS CPU socket FM2 ASUS F2A55 M LK2 Series 1 7 APU installation 1 4 1 Chapter 1 Product
23. ATA XXXXXXXXXXXXXXXX USB XXXXXXXXXXXXXXXXX UEFI XXXXXXXXXXXXXXXX Enter Setup 3 When the Make Disk menu appears select the FreeDOS command prompt item by pressing the item number 4 At the FreeDOS prompt type d and press lt Enter gt to switch the disk from Drive C optical drive to Drive D USB flash drive Welcome to FreeDOS http www freedos org C gt d D gt ASUS F2A55 M LK2 Series Updating the BIOS file To update the BIOS file using BIOS Updater 1 2 A At the FreeDOS prompt type bupdater pc g and press lt Enter gt D gt bupdater pc g The BIOS Updater screen appears as below ASUSTek BIOS Updater for DOS V1 30 BOARD F2A55 M LK2 PLUS BO Unknown VER 0201 VER Unknown DATE 0 13 2012 DATE Unknown PATH ER A F2A5MKP2 CAP 8390656 2012 07 13 17 30 48 Enter Select or Load Tab Switch V Drive Info Up Down Home End Move B Backup Esc Exit Press lt Tab gt to switch between screen fields and use the lt Up Down Home End gt keys to select the BIOS file and press lt Enter gt BIOS Updater checks the selected BIOS file and prompts you to confirm BIOS update Are you sure to update BIOS Select Yes and press lt Enter gt When BIOS update is done press lt ESC gt to exit BIOS Updater Restart your computer DO NOT shut down or reset the system while updating the BIOS to prevent system boot failure IN For BIOS Updater version 1 3
24. BIOS setup program can be changed Refer to the Setup Mode item in section 2 7 Boot menu for details Selects the display language of the BIOS setup program Displays the CPU motherboard temperature Exits the BIOS setup program without saving CPU 5V 3 3V 12V voltage output the changes saves the changes and resets CPU chassis fan speed the system or enters the Advanced Mode FER OE PO with Rodeo ta M 1 101 2 111 e y WS 18 1 1 3 NW raper atare ne the smse to drag ar kayinard to mos gate to deride he beet priority Die 6 Mosc Mode FD Selects the Advanced Power Saving mode Loads optimized default mode funcuons Normal mode ASUS Optimal mode Selects the boot Selects the boot device priority device priority Displays the system properties of the selected mode on the right hand side Displays the Advanced mode menus YA The boot device options vary depending on the devices you installed to the system The Boot Menu F8 button is available only when the boot device is installed to the system Chapter 2 BIOS information 2 7 Advanced Mode The Advanced Mode provides advanced options for experienced end users to configure the BIOS settings The figure below shows an example of the Advanced Mode Refer to the following sections for the detailed configurations YA To access the EZ Mode click Exit then select ASUS EZ Mode Back button Menu items Menu bar Configuration fields Gen
25. Configuration options Enabled Disabled NX Mode Enabled Enables or disables the No execute page protection function Configuration options Enabled Disabled SVM Enabled Enables or disables CPU virtualization Configuration options Disabled Enabled CPB Mode Auto Disables the CPB Core Performance Boost mode or set it to Auto for automatic configuration Configuration options Disabled Auto C6 Mode Disabled Enables or disables C6 mode Configuration options Enabled Disabled IOMMU Disabled Set this item to Enabled to show IOMMU Mode Configuration options Enabled Disabled Bank Interleaving Disabled Enables or disables Bank Interleaving Configuration options Enabled Disabled Channel Interleaving Disabled Enables or disables Channel Interleaving Configuration options Enabled Disabled Chapter 2 BIOS information 2 17 2 18 2 5 2 SATA Configuration While entering Setup the BIOS automatically detects the presence of SATA devices The SATA Port items show Not Present if no SATA device is installed to the corresponding SATA port OnChip SATA Channel Enabled Enables or disables onboard channel SATA port Configuration options Disabled Enabled OnChip SATA Type AHCI Allows you to set the SATA configuration IDE Set to IDE when you want to use the Serial ATA hard disk drives as Parallel ATA physical storage devices RAID Set to RAID when you want to crea
26. DOcO0NA 391163 3118 8 666113 LLOZ LLW 2002 0209S NI 8002 8 6 00019 N3 OL0z 20SS N3 ISCH 20010 9007 ZV 007 Lv 100 1096 N3 DI 600z zv 9002 2 00019 N3 RI SeAyoaa1p Buimojjoy oroz zzoss NI X OWS 23 80 7002 eut Jo guawasinbas jenu ss Vi wsojuoo SN1d ZAT W SSVZ4 ZAT 99 2 00 po 49 1 300 0 jonpoig snjejedde Buimo joy ay aJe 9ap ANYW439 30063 N3ONILVY 08807 1 45 LYOYYVH AMD ssaappy Haus NILNAWOO SNSY redoing uy sApejuosaidai pazioyny NVMIVI Knunog NYMIVI Lb Bdivi NOLIAd PA ALAT OSL ON AMD ssaippy NI YALNAWOD HOLSNSY 4839358 7000 mapang T eg Een SS E paubissapun ay SM 110461063 Jo Uonese 9ag 23 09021 9A 0 126 3A amnjeusig Juopisalg BUE SUIEN S UOS194 5211610 55 001181500 paisapun 55162 Ze yey 0542 15101 paataar 55064 35101 Aue Wann Ten aap siy 7 pue aouerapiojut Wu 25087 jou An ao1aop SII 1 suonipuoo om umoo aw 0 yoalgns st 0118350 sam DIA oy JO ST ped Tim sarduroo sdtaap siy goe 30101 3610783710006 SIO EIPEY EUONUIJUIU g wedqng ST Weg DIA suoneoIzioods Turmo oJ ay 0 SULIOJUOD ZAT IN SSYZA SNTd ZAT IN SSVZI JeqUuINN 1 pieoqiayjo 1 awen 1210
27. Dept 15 Li Te Rd Beitou Taipei 112 Taiwan In your request please provide the name model number and version as stated in the About Box of the product for which you wish to obtain the corresponding source code and your contact details so that we can coordinate the terms and cost of shipment with you The source code will be distributed WITHOUT ANY WARRANTY and licensed under the same license as the corresponding binary object code This offer is valid to anyone in receipt of this information ASUSTeK is eager to duly provide complete source code as required under various Free Open Source Software licenses If however you encounter any problems in obtaining the full corresponding source code we would be much obliged if you give us a notification to the email address gpl asus com stating the product and describing the problem please DO NOT send large attachments such as source code archives etc to this email address Contents Safety INfOFMMatION ee vi About this guide vii F2A55 M LK2 Series specifications SUMMAFY rriiire ieri ix Package contents ssri a xi Product introduction 1 1 Special features EES 1 1 141 Product highlights svisino 1 1 1 1 2 ASUS DIGI 24 22522 2436 44 1 1 3 ASUS Exclusive Features 1 2 0 00 006660 lt ansann aniai aana 1 3 Motherboard 0019
28. F2A55 M LK2 Series F2A55 M LK2 F2A55 M LK2 PLUS Le E CO O Be Gg D K a KS E8028 First Edition January 2013 Copyright 2012 ASUSTeK COMPUTER INC All Rights Reserved No part of this manual including the products and software described in it may be reproduced transmitted transcribed stored in a retrieval system or translated into any language in any form or by any means except documentation kept by the purchaser for backup purposes without the express written permission of ASUSTeK COMPUTER INC ASUS Product warranty or service will not be extended if 1 the product is repaired modified or altered unless such repair modification of alteration is authorized in writing by ASUS or 2 the serial number of the product is defaced or missing ASUS PROVIDES THIS MANUAL AS IS WITHOUT WARRANTY OF ANY KIND EITHER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE IN NO EVENT SHALL ASUS ITS DIRECTORS OFFICERS EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES INCLUDING DAMAGES FOR LOSS OF PROFITS LOSS OF BUSINESS LOSS OF USE OR DATA INTERRUPTION OF BUSINESS AND THE LIKE EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNI
29. GB 1 65V CMP4GX3M2C1600C7 XMP 4GB 2 x 2GB 1 65V CMX4GX3M2A1600C9 XMP 4GB 2 x 2GB 1 65V CMX4GX3M2A1600C9 XMP 4GB 2 x 2GB 1 65V TR3X6G160008 G XMP 6GB 3 x 2GB 1 65V TR3X6G1600C8D G XMP 6GB 3 x 2GB 1 65V TR3X6G1600C9 G XMP 6GB 3 x 2GB 1 65V CMP8GX3M2A1600C9 XMP 8GB 2 x 4GB 1 65V CMZ8GX3M2A1600C7R XMP 8GB 2 x 4GB 1 50V CMX8GX3M4A1600C9 XMP 8GB 4 x 2GB 1 65V BL25664BN1608 16FF XMP 6GB 3 x 2GB F3 12800CL7D 4GBRH XMP 4GB 2 x 2GB 1 6V F3 12800CL7D 4GBECO XMP F3 12800CL7D 4GBRM XMP 4GB 2 x 2GB 4GB 2 x 2GB XMP 1 35V 1 6V F3 12800CL8D 4GBRM XMP 4GB 2 x 2GB 1 60V F3 12800CL9D 4GBECO XMP 4GB 2 x 2GB XMP 1 35V F3 12800CL9D 4GBRL XMP 4GB 2 x 2GB 1 5V F3 12800CL9T 6GBNQ XMP 6GB 3 x 2GB 1 5V 1 6V F3 12800CL7D 8GBRH XMP 8GB 2 x 4GB 1 6V F3 12800CL8D 8GBECO XMP F3 12800CL9D 8GBRL XMP 8GB 2 x 4GB 8GB 2 x 4GB XMP 1 35V GET316GB1600C9QC XMP 16GB 4 x 4GB GV34GB1600C8DC XMP 2GB HMT351U6CFR8C PB 4GB H5TQ2G83 CFR PBC FLGE85F B8KJ9A FEIS XMP 2GB FLGE85F B8MF7 MEEH XMP 2GB KHX1600C9D3P1K2 4G 4GB 2 x 2GB 1 5V KHX1600C9D3K3 12GX XMP 12GB 3 x 4GB 1 65V KHX1600C9D3T1BK3 12GX XMP 12GB 3 x 4GB 1 65V KHX1600C9D3K4 16GX XMP 16GB 4GB x 4 1 65V
30. HGONF CG 4GB NANYA NT5CB256M8GN CG AL8F8G73F DJ2 2GB PSC A3P1GF3FGF M378B5773DH0 CH9 2GB SAMSUNG K4B2G0846D M378B5673FH0 CH9 2GB SAMSUNG K4B1G0846F SAMSUNG M378B5273CH0 CH9 Super Talent W1333UB2GS 4GB 2GB DS SAMSUNG SAMSUNG K4B2G0846C K4B1G0846F Super Talent W1333UB4GS 4GB DS SAMSUNG K4B2G0846C Super Talent W1333UX6GM 6GB 3x 2GB DS Micron OBF27D9KPT 9 9 9 24 1 5V KINGSTEK__ KSTD3PC 10600 2GB SS MICRON PE911 125E Chapter 1 Product introduction DDR3 1066 MHz capability DIMM socket support Vendors SS DS Chip Brand Chip NO Timing Voltage Optional CT12864BA1067 8FF 1GB Micron 9GF22D9KPT Pa WE a 1 35V low EBJ21UE8EDF0 AE F 2GB ELPIDA J1108EDSE DJ F voltage KINGSTON KVR1066D3N7 1G low profile 1GB ELPIDA J1108BFSE DJ F 7 1 5V KINGSTON KVR1066D3N7 4G 4GB Hynix H5TQ2G83AFR 7 1 5V N Side s SS Single sided DS Double sided DIMM support 1 DIMM Supports one module inserted into any slot as Single channel memory configuration 2DIMMs Supports two modules inserted into both the blue slots as one pair of Dual channel memory configuration YA Visit the ASUS website at www asus com for the latest QVL ASUS F2A55 M LK2 Series 1 5 3 Installing a DIMM Chapter 1 Product introduction 1 6 Expansion slots In the future you may need to install expansion cards The following sub se
31. High quality Conductive Polymer Capacitors F2A55 M LK2 PLUS only This motherboard uses all high quality conductive polymer capacitors for durability improved lifespan and enhanced thermal capacity ASUS F2A55 M LK2 Series 1 1 1 1 2 ASUS DIGI VRM DIGI POWER CONTROL Digital Power Design for the APU ASUS motherboards using the AMD A55 chipset employ precise digital voltage regulation for the APU called DIGI VRM Voltage Regulation Modules digital power design The APU voltage is adjusted via either carefully developed automated modes or by using user defined profiles The effect is that DIGI VRM technology ensures greater energy efficiency and the most precise power delivery Boosted by world renowned ASUS quality it creates an ideal computing platform for a diverse range of applications from gaming to multimedia or office work and heavy multitasking Engineered and tested to assure unmitigated performance ASUS A55 boards with DIGI VRM remain efficient and accurate for reliable application in every scenario DIGI VRM functions also available in FM2 socket compatible CPUs 1 1 3 ASUS Exclusive Features Network iControl Network iControl is an intuitive one step network control center that makes it easier for you to manage your bandwidth and allows you to set monitor and schedule the bandwidth priorities for your network programs It allows you to automatically connect to a PPPoE network for a more convenient online exper
32. NumLock State ON AN 2 27 2 7 5 Wait for F1 If Error Enabled 11 nnaman aaa 2 27 2 7 6 Option ROM Messages Force BIOS 2 27 2 7 7 Setup Mode EZ 00061 lt lt lt lt lt 2 27 2 7 8 CSM Para Motels naa agahan 2 27 2 7 9 Cal CA 2 28 27 10 Boot Option 6186 224 3 2 24425 40252 2555 55424 42235 25 2 29 STT 9006666106 4 425 asas tai siais iaia ii 2 29 2 8 _ 1008118110 4 ian a i i ii iii 2 30 2 8 1 ASUS EZ Flash E 2 30 2 8 2 ASUS SPD Informationi conii dun 2 30 2 8 3 ASUS O C Profile ita ile 2 30 A Exit Menini 2 31 Appendices OC Lai aa A 1 ASUS contact 10111811011 lt lt A 3 vi Safety information Electrical safety To prevent electrical shock hazard disconnect the power cable from the electrical outlet before relocating the system When adding or removing devices to or from the system ensure that the power cables for the devices are unplugged before the signal cables are connected If possible disconnect all power cables from the existing system before you add a device Before connecting or removing signal cables from the motherboard ensure that all power cables are unplugged Seek professional assistance before using an adapter or extension cord These devices could interrupt the grounding circuit Ensure that your powe
33. PLUS Serial port COM1 connector YA The COM module is purchased separately ASUS F2A55 M LK2 Series 1 27 1 9 Software support 1 9 1 Installing an operating system This motherboard supports Windows XP Vista Windows 7 Windows 8 Operating Systems OS Always install the latest OS version and corresponding updates to maximize the features of your hardware YA Motherboard settings and hardware options vary Refer to your OS documentation for detailed information Ensure that you install Windows XP Service Pack 3 or later versions Windows Vista Service Pack 1 or later versions before installing the drivers for better compatibility and system stability BIOS and drivers updates are required to support Windows 8 1 9 2 Support DVD information The Support DVD that comes with the motherboard package contains the drivers software applications and utilities that you can install to avail all motherboard features YA The contents of the Support DVD are subject to change at any time without notice Visit the ASUS website at www asus com for updates To run the Support DVD Place the Support DVD into the optical drive If Autorun is enabled in your computer the DVD automatically displays the Specials screen Click Drivers Utilities Make Disk Manual and Contact tabs to display their respective menus YA The following screen is for reference only Click an icon to display Support DVD motherboard informat
34. SATA connectors in the BIOS to RAID See section 2 5 2 SATA Configuration for details You must install Windows XP Service Pack 3 or later version before using Serial ATA hard disk drives The Serial ATA RAID feature is available only if you are using Windows XP SP3 or later version When using hot plug and NCQ set the type of the SATA connectors in the BIOS to AHCI See section 2 5 2 SATA Configuration for details Chapter 1 Product introduction 4 System panel connector 10 1 pin PANEL This connector supports several chassis mounted functions F_PANEL WR BTN PWR LED T PLED PLED PWR 33 GND PINA HD LED RESET F2A55 M LK2 PLUS System panel connector Reset Ground HD LED HD LED System power LED 2 pin PLED This 2 pin connector is for the system power LED Connect the chassis power LED cable to this connector The system power LED lights up when you turn on the system power and blinks when the system is in sleep mode KG Hard disk drive activity LED 2 pin IDELED This 2 pin connector is for the HDD Activity LED Connect the HDD Activity LED cable to this connector The IDE LED lights up or flashes when data is read from or written to the HDD o ATX power button soft off button 2 pin PWRBTN This 2 pin connector is for the system power button Reset button 2 pin RESET
35. SHED FOR INFORMATIONAL USE ONLY AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies and are used only for identification or explanation and to the owners benefit without intent to infringe Offer to Provide Source Code of Certain Software This product contains copyrighted software that is licensed under the General Public License GPL under the Lesser General Public License Version LGPL and or other Free Open Source Software Licenses Such software in this product is distributed without any warranty to the extent permitted by the applicable law Copies of these licenses are included in this product Where the applicable license entitles you to the source code of such software and or other additional data you may obtain it for a period of three years after our last shipment of the product either 1 for free by downloading it from http support asus com download or 2 for the cost of reproduction and shipment which is dependent on the preferred carrier and the location where you want to have it shipped to by sending a request to ASUSTeK Computer Inc Legal Compliance
36. SUS optimized phase tuning profile Extreme Proceeds the full phase mode Manual Adjustment Allows manual adjustment Manual Adjustment Fast Select Ultra Fast for a faster response The reaction time will be longer when Regular is selected Configuration options Ultra Fast Fast Medium Regular CPU Voltage Frequency Auto Switching frequency will affect the VRM transient response and component thermal Setting a higher frequency gets faster transient response Use the lt gt and lt gt keys to adjust the value The values range from 200k Hz to 350k Hz with a 50k Hz interval Chapter 2 BIOS information 2 15 2 16 CPU Power Duty Control T Probe T Probe Maintains the VRM thermal balance Extreme Maintains the VRM current balance Do not remove the thermal module while changing the DIGI VRM related parameters The thermal conditions should be monitored ASUS F2A55 M LK2 Series 2 5 Advanced menu The Advanced menu items allow you to change the settings for the CPU and other system devices NN Be cautious when changing the settings of the Advanced meru items Incorrect field values IN can cause the system to malfunction 2 5 1 CPU Configuration The items in this menu show the CPU related information that the BIOS automatically detects B The items shown in submenu may be different due to the CPU you installed AMD PowerNow function Enabled Enables or disables the AMD PowerNow function
37. Screen Logo Enabled Enabled Enables the full screen logo display feature Disabled Disables the full screen logo display feature KA Set this item to Enabled to use the ASUS MyLogo 2 feature Post Report 5 sec This item appears only when the Full Screen Logo item is set to Disabled and allows you to set the waiting time for the system to display the post report Configuration options 1 sec 2 sec 3 sec 4 sec 5 sec 6 sec 7 sec 8 sec 9 sec 10 sec Until Press ESC ASUS F2A55 M LK2 Series 2 7 3 Post Delay Time 3 sec Allows you to set the POST Report wait time This configuration only functions in Normal Boot mode Configuration options 0 sec 1 sec 2 sec 3 sec 4 sec 5 sec 6 sec 7 sec 8 sec 9 sec 10 sec 2 7 4 Bootup NumLock State On On Sets the power on state of the NumLock to On Off Sets the power on state of the NumLock to Off 2 7 5 Wait for F1 If Error Enabled When this item is set to Enabled the system waits for the F1 key to be pressed when error occurs Configuration options Disabled Enabled 2 7 6 Option ROM Messages Force BIOS Force BIOS The third party ROM messages will be forced to display during the boot sequence Keep Current The third party ROM messages will be displayed only if the third party manufacturer had set the add on device to do so 2 7 7 Setup Mode EZ Mode Advanced Mode Sets Advanced Mode as the default sc
38. al waste This symbol of the crossed out wheeled bin indicates that the battery should not be placed in municipal waste ASUS Recycling Takeback Services ASUS recycling and takeback programs come from our commitment to the highest standards for protecting our environment We believe in providing solutions for you to be able to responsibly recycle our products batteries other components as well as the packaging materials Please go to http csr asus com english Takeback htm for detailed recycling information in different regions Appendices ASUS contact information ASUSTeK COMPUTER INC Address 15 Li Te Road Peitou Taipei Taiwan 11259 Telephone 886 2 2894 3447 Fax 886 2 2890 7798 E mail info asus com tw Web site www asus com tw Technical Support Telephone 86 21 38429911 Online support support asus com ASUS COMPUTER INTERNATIONAL America Address 800 Corporate Way Fremont CA 94539 USA Telephone 1 812 282 3777 Fax 1 510 608 4555 Web site usa asus com Technical Support Telephone 1 812 282 2787 Support fax 1 812 284 0883 Online support support asus com ASUS COMPUTER GmbH Germany and Austria Address Harkort Str 21 23 D 40880 Ratingen Germany Fax 49 2102 959911 Web site www asus de Online contact www asus de sales Technical Support Telephone 49 1805 010923 Support Fax 49 2102 9599 11 Online support support asus com EUR 0 14 minute from a German fixed landline EUR 0 42 minute from a m
39. atement This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions This device may not cause harmful interference This device must accept any interference received including interference that may cause undesired operation This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with manufacturer s instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment to an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help d The use of shielded cables for connection of the monitor to the graphics card is required to assur
40. ch to the Folder Info field 6 Press the Up Down arrow keys to find the BIOS file and then press lt Enter gt to perform the BIOS update process Reboot the system when the update process is done A This function supports USB flash disks formatted using FAT 32 16 on a single partition DONOT shut down or reset the system while updating the BIOS to prevent system boot failure 2 2 ASUS F2A55 M LK2 Series 2 1 3 ASUS CrashFree BIOS 3 utility The ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS file when it fails or gets corrupted during the updating process You can restore a corrupted BIOS file using the motherboard support DVD or a USB flash drive that contains the updated BIOS file A Before using this utility rename the BIOS file in the removable device into F2A5MLK2 CAP for F2A55 M LK2 or F2A5MK2P CAP for F2A55 M LK2 PLUS The BIOS file in the support DVD may not be the latest version Download the latest BIOS file from the ASUS website at www asus com Recovering the BIOS To recover the BIOS 1 Turn on the system 2 Insert the support DVD to the optical drive or the USB flash drive that contains the BIOS file to the USB port 3 The utility automatically checks the devices for the BIOS file When found the utility reads the BIOS file and enters ASUS EZ Flash 2 utility automatically 4 The system requires you to enter BIOS Setup to recover BIOS setting To ensure system c
41. ctions describe the slots and the expansion cards that they support Unplug the power cord before adding or removing expansion cards Failure to do so may cause you physical injury and damage motherboard components 1 6 1 Installing an expansion card To install an expansion card 1 Before installing the expansion card read the documentation that came with it and make the necessary hardware settings for the card 2 Remove the system unit cover if your motherboard is already installed in a chassis 3 Remove the bracket opposite the slot that you intend to use Keep the screw for later use 4 Align the card connector with the slot and press firmly until the card is completely seated on the slot 5 Secure the card to the chassis with the screw you removed earlier 6 Replace the system cover 1 6 2 Configuring an expansion card After installing the expansion card configure it by adjusting the software settings 1 Turn on the system and change the necessary BIOS settings if any See Chapter 2 for information on BIOS setup 2 Assign an IRQ to the card 3 Install the software drivers for the expansion card A When using PCI cards on shared slots ensure that the drivers support Share IRQ or that the cards do not need IRQ assignments Otherwise conflicts will arise between the two PCI groups making the system unstable and the card inoperable 1 6 3 PCI slot The PCI slot supports cards such as a LAN card SCSI
42. ctor 32 Mb Flash ROM UEFI AMI BIOS PnP DMI 2 0 WfM 2 0 SM BIOS 2 6 ACPI 2 0a Multi language BIOS ASUS EZ Flash 2 ASUS CrashFreen BIOS 3 F12 Printscreen function F3 Shortcut function and ASUS DRAM SPD Serial Presence Detect memory information Drivers ASUS Update ASUS utilities Anti Virus software OEM version uATX form factor 8 9 in x 6 8 in 22 6 cm x 17 3 cm YA Specifications are subject to change without notice Package contents Check your motherboard package for the following items EH ADKIZV SOCKET FM2 F2A55 M LK2 PLUS PCIEXI6 POEXII 2 x Serial ATA 3 0 Gb s cables T User Guide Support DVD YA F2A55 M LK2 Series motherboards include F2A55 M LK2 PLUS and F2A55 M LK2 models The package contents vary from models If any of the above items is damaged or missing contact your retailer The illustrated items above are for reference only Actual product specifications may vary with different models xi xii Product introduction 1 1 Special features 1 1 1 Product highlights AMD A series accelerated processors with AMD Radeon HD 7000 series graphics This motherboard supports AMD A series accel
43. cts ASUS F2A55 M LK2 Series 1 2 Before you proceed Take note of the following precautions before you install motherboard components or change any motherboard settings Unplug the power cord from the wall socket before touching any component Before handling components use a grounded wrist strap or touch a safely grounded object or a metal object such as the power supply case to avoid damaging them due to static electricity Hold components by the edges to avoid touching the ICs on them Whenever you uninstall any component place it on a grounded antistatic pad or in the bag that came with the component Before you install or remove any component switch off the ATX power supply and detach its power cord Failure to do so may cause severe damage to the motherboard peripherals or components Standby Power LED The motherboard comes with a standby power LED that lights up to indicate that the system is ON in sleep mode or in soft off mode This is a reminder that you should shut down the system and unplug the power cable before removing or plugging in any motherboard component The illustration below shows the location of the onboard LED SB_PWR gt ON Standby Power Powered Off F2A55 M LK2 PLUS Onboard LED Chapter 1 Product introduction 1 3 Motherboard overview 1 3 1 Placement direction When installing the motherboard ensure
44. definition compliant definition F2A55 M LK2 PLUS Front panel audio connector We recommend that you connect a high definition front panel audio module to this connector to avail of the motherboard high definition audio capability If you want to connect a high definition front panel audio module to this connector set the Front Panel Type item in the BIOS to HD See section 2 5 5 Onboard Devices Configuration for details The front panel audio UO module is purchased separately Chapter 1 Product introduction 8 USB 2 0 connectors 10 1 pin USB56 USB78 These connectors are for USB 2 0 ports Connect the USB module cable to any of these connectors then install the module to a slot opening at the back of the system chassis These USB connectors comply with USB 2 0 specification that supports up to 480Mbps connection speed C Dom 7 F2A55 M LK2 PLUS USB2 0 connectors Never connect a 1394 cable to the USB connectors Doing so will damage the motherboard YA The USB 2 0 module is purchased separately 9 Serial port connector 10 1 pin COM This connector is for a serial COM port Connect the serial port module cable to this connector then install the module to a slot opening at the back of the system chassis RXD O O 08 3 cs E F2A55 M LK2
45. e AC power loss Power On By PS 2 Keyboard Disabled Disabled Disables the Power On by a PS 2 keyboard Space Bar Sets the Space Bar on the PS 2 keyboard to turn on the system Ctrl Esc Sets the Ctrl Esc key on the PS 2 keyboard to turn on the system Power Key Sets Power key on the PS 2 keyboard to turn on the system This feature requires an ATX power supply that provides at least 1A on the 5VSB lead Power On By PS 2 Mouse Disabled Disabled Disables the Power On by a PS 2 mouse Enabled Enables the Power On by a PS 2 mouse This feature requires an ATX power supply that provides at least 1A on the 5VSB lead Power On By PME Disabled Disabled Disables the PME to wake up by PCI PCIE devices Enabled Allows you to turn on the system through a PCI PCIE LAN or modem card This feature requires an ATX power supply that provides at least 1A on the 5VSB lead Power On By Ring Disabled Disabled Disables Ring to generate a wake event Enabled Enables Ring to generate a wake event Power On By RTC Disabled Disabled Disables RTC to generate a wake event Enabled When set to Enabled the items RTC Alarm Date Days and Hour Minute Second will become user configurable with set values RTC Alarm Date Days This item appears only when you set the previous item to Enabled and allows you to select RTC alarm time days When you set the time to zero the RTC alarms everyday Use lt gt and lt
46. e compliance with FCC regulations Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user s authority to operate this equipment IC Canadian Compliance Statement Complies with the Canadian ICES 003 Class B specifications This device complies with RSS 210 of Industry Canada This Class B device meets all the requirements of the Canadian interference causing equipment regulations This device complies with Industry Canada license exempt RSS standard s Operation is subject to the following two conditions 1 this device may not cause interference and 2 this device must accept any interference including interference that may cause undesired operation of the device Cut appareil num rique de la Classe B est conforme a la norme NMB 003 du Canada Cet appareil num rique de la Classe B respecte toutes les exigences du R glement sur le mat riel brouilleur du Canada Cet appareil est conforme aux normes CNR exemptes de licence d Industrie Canada Le fonctionnement est soumis aux deux conditions suivantes 1 cet appareil ne doit pas provoquer d interf rences et 2 cet appareil doit accepter toute interf rence y compris celles susceptibles de provoquer un fonctionnement non souhait de l appareil ASUS F2A55 M LK2 Series A 1 A 2 Canadian Department of Communications Statement This digital apparatus does not exceed the Class B limits for radio noise emiss
47. eral help EB Delos Lab Logaoy USB Support DCI off USD Single Port 1 Submenu item Pop up window Navigation keys Menu bar The menu bar on top of the screen has the following main items For changing the basic system configuration Ai Tweaker For changing the overclocking settings Advanced For changing the advanced system settings Monitor For displaying the system temperature power status and changing the fan settings For changing the system boot configuration For configuring options for special functions For selecting the exit options and loading default settings ASUS F2A55 M LK2 Series Menu items The highlighted item on the menu bar displays the specific items for that menu For example selecting Main shows the Main menu items The other items Ai Tweaker Advanced Monitor Boot Tool and Exit on the menu bar have their respective menu items Back button This button appears when entering a submenu Press lt Esc gt or use the USB mouse to click this button to return to the previous menu screen Submenu items A greater than sign gt before each item on any menu screen means that the item has a submenu To display the submenu select the item and press lt Enter gt or double click the item Pop up window Select a menu item and press lt Enter gt to display a pop up window with the configuration options for that item Scroll bar A scroll bar appears on the right side of a men
48. erated processor with AMD Radeon HD 7000 series graphics This revolutionary APU Accelerated Processing Unit combines processing power and advanced DirectX 11 graphics in one small energy efficient design to enable accelerated performance and an industry leading visual experience It features Dual channel DDR3 memory support and accelerates data transfer rate up to 5GT s AMD A55 FCH chipset AMD A55 FCH is designed to support up to 5GT s interface speed and 6 x SATA 3 0Gb s ports Dual Channel DDR3 1866 1600 1333 1066 MHz Support The motherboard supports the dual channel DDR3 memory that features data transfer rates of DDR3 1866 1600 1333 1066 MHz to boost the system s performance and to meet the higher bandwidth requirements of 3D graphics multimedia and Internet applications 8 channel high definition audio The onboard 8 channel HD audio High Definition Audio previously codenamed Azalia CODEC enables high quality 192KHz 24 bit audio output and jack detect feature that automatically detects and identifies what types of peripherals are plugged into the audio I O jacks and notifies users of inappropriate connection which means there will be no more confusion of Line in Line out and Mic jacks Gigabit LAN solution The onboard LAN controller is a highly integrated Gb LAN controller It is enhanced with an ACPI management function to provide efficient power management for advanced operating systems 100 All
49. fset the voltage by a positive or negative value CPU Offset Mode Sign To offset the voltage by a positive value To offset the voltage by a negative value CPU Offset Voltage Auto Allows you to set the CPU Offset voltage The values range from 0 00625V to 0 500V with a 0 00625V interval Refer to the CPU documentation before setting the CPU voltage Setting a high voltage may damage the CPU permanently and setting a low voltage may make the system unstable VDDNB Offset Mode Sign To offset the voltage by a positive value To offset the voltage by a negative value VDDNB Offset Voltage Auto Allows you to set the VDDNB Offset voltage The values range from 0 00625V to 0 500V with a 0 00625V interval 2 4 8 DRAM Voltage Auto Allows you to set the DRAM voltage The values range from 1 35V to 1 65V with a 0 15V interval 2 4 9 SB 1 1V Voltage Auto Allows you to set the Southbridge 1 1V voltage The values range from 1 1V to 1 22V with a 0 04V interval The values of the CPU Offset Voltage VDDNB Offset Voltage DRAM Voltage and SB 1 1V Voltage items are labeled in a different color indicating the risk levels of high voltage settings The system may need a better cooling system to work properly under high voltage settings ASUS F2A55 M LK2 Series 2 4 10 01814 VRM CPU Load Line Calibration Auto Load line Calibration is defined by AMD VRM specifications and affects CPU voltage The
50. hipset Memory Graphics Expansion slots Storage RAID AMD Socket FM2 A series Athlon Series Processors AMD Turbo Core Technology 3 0 support Microsoft DirectX 11 support Refer to www asus com for the AMD APU support list AMD A55 FCH Hudson D2 2 x 240 pin DIMM slots support maximum 32GB unbuffered non ECC DDR3 1866 1600 1333 1066 MHz memory modules Dual channel memory architecture Supports AMD Memory Profile AMP memory The maximum 32GB memory capacity can be supported with 16GB or above DIMMs ASUS will update the memory QVL once the DIMMs are available in the market Refer to www asus com for the latest Memory QVL Qualified Vendors List When you install a total memory of 4GB capacity or more Windows 32 bit operating system may only recognize less than 3GB We recommend a maximum of 3GB system memory if you are using a Windows 32 bit operating system Integrated AMD Radeon HD 7000 Series Graphics in the A Series APU Supports DVI D and D Sub ports Supports DVI with max resolution 2560x1600 60Hz Supports D Sub with max resolution 1920x1600 60Hz AMD Dual Graphics technology support Supports Microsoft DirectX 11 Refer to http www amd com us products technologies dual graphics Pages dual graphics aspx 3 for the discrete GPUs which support Dual Graphics technology 1x PCle 2 0 x16 slot 1 x PCle 2 0 x1 slots 1 x PCI slot AMD A55 FCH
51. ience The ASUS Network iControl feature does not support Windows XP Vista operating systems ASUS UEFI BIOS EZ Mode ASUS UEFI BIOS a UEFI compliant architecture offers the first mouse controlled intuitive graphical BIOS interface that goes beyond the traditional keyboard only BIOS controls providing you with more flexibility convenience and easy to navigate EFI BIOS than the traditional BIOS versions It offers you with dual selectable modes and native support for hard drives larger than 2 2 TB ASUS UEFI BIOS includes the following new features F12 BIOS snapshot hotkey F3 Shortcut for most accessed information ASUS DRAM SPD Serial Presence Detect information detecting faulty DIMMs and helping with difficult POST situations EPU EPU Energy Processing Unit the world s first real time system power saving chip automatically detects the current system load and intelligently moderates power usage It offers a total system wide energy optimization reduces fan noise and extends the component s lifespan ASUS Anti Surge Protection This special design protects expensive devices and the motherboard from damage caused by power surges from switching power supply unit PSU Chapter 1 Product introduction Al Suite II With its user interface ASUS Al Suite Il integrates several ASUS utilities and allows you to launch and operate these utilities simultaneously It allows you to configure the overclocking settings adjust
52. in 2 4 6 or 8 channel configuration Audio 2 4 6 or 8 channel configuration Headset 2 channel Light Blue Rear panel Lineln Rear Speaker Out Rear Speaker Out Rear Speaker Out Lime Rear panel Line Out Front Speaker Out Front Speaker Out Front Speaker Out Pink Rear panel Mic In Mic In Bass Center Bass Center Side Speaker Out 4 channel 6 channel 8 channel A To configure an 8 channel audio output Use a chassis with HD audio module in the front panel to support an 8 channel audio output ASUS F2A55 M LK2 Series 1 21 6 USB 2 0 ports 1 and 2 These two 4 pin Universal Serial Bus USB ports are for USB 2 0 1 1 devices 7 USB 2 0 ports 3 and 4 These two 4 pin Universal Serial Bus USB ports are for USB 2 0 1 1 devices 8 Video Graphics Adapter VGA port This 15 pin port is for a VGA monitor or other VGA compatible devices 9 DVI D port This port is for any DVI D compatible device DVI D can t be converted to output RGB Signal to CRT and isn t compatible with DVI I 10 PS 2 Keyboard port purple This port is for a PS 2 keyboard 1 8 2 Internal connectors 1 CPU and chassis fan connectors 4 pin CPU FAN and 3 pin CHA FAN Connect the fan cables to the fan connectors on the motherboard ensuring that the black wire of each cable matches the ground pin of the connector CPU_FAN a Us 2226 age Za 85
53. introduction 1 8 1 4 2 APU heatsink and fan assembly installation Apply the Thermal Interface Material tothe APU heatsink and APU before you install the heatsink and fan if necessary ASUS F2A55 M LK2 Series 1 9 To uninstall the APU heatsink and fan assembly Chapter 1 Product introduction 1 5 System memory 1 5 1 Overview This motherboard comes with two Double Data Rate 3 DDR3 Dual Inline Memory Modules DIMM sockets A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched differently to prevent installation on a DDR2 DIMM socket DDR3 modules are developed for better performance with less power consumption The figure illustrates the location of the DDR3 DIMM sockets SCH DIMM B1 CI DIMM A1 Channel Sockets Channel A DIMM A1 Channel B DIMM B1 F2A55 M LK2 PLUS 240 pin DDR3 DIMM sockets ASUS F2A55 M LK2 Series 1 11 1 12 1 5 2 Memory configurations You may install 1GB 2GB 4GB and 8GB unbuffered non ECC DDR3 DIMMs into the DIMM sockets A You may install varying memory sizes in Channel A and Channel B The system maps the total size of the lower sized channel for the dual channel configuration Any excess memory from the higher sized channel is then mapped for single channel operation We recommend that you install the memory modules from the blue slots for better overclocki
54. ion Click an item to install VA If Autorun is NOT enabled on your computer browse the contents of the Support DVD to 2 locate the file ASSETUP EXE from the BIN folder Double click the ASSETUP EXE to run the DVD 1 28 Chapter 1 Product introduction BIOS information 2 1 Managing and updating your BIOS A Save a copy of the original motherboard BIOS file to a USB flash disk in case you need to restore the BIOS in the future Copy the original motherboard BIOS using the ASUS Update utility 2 1 1 ASUS Update utility The ASUS Update is a utility that allows you to manage save and update the motherboard BIOS in Windows environment VA ASUS Update requires an Internet connection either through a network or an Internet Service Provider ISP This utility is available in the support DVD that comes with the motherboard package Installing ASUS Update To install ASUS Update 1 Place the support DVD in the optical drive The Specials menu appears 2 Click the Utilities tab then click Al Suite Il 3 Follow the onscreen instructions to complete the installation ff Quit all Windows applications before you update the BIOS using this utility Updating the BIOS To update the BIOS 1 From the Windows desktop click Start gt Programs gt ASUS gt Al Suite II gt Al Suite II X XX XX to launch the Al Suite II utility The Al Suite Il Quick Bar appears 2 Click Update button from the Quick Bar and then
55. ions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications This class B digital apparatus complies with Canadian ICES 003 VCCI Japan Compliance Statement VCCI Class B Statement 7 5 dt RIE MR E TAM ONT TORE MUGURETLAREN TAMIGI 2 77 ASMA RE tr gt 279 2 gt 2 2 27 2 2 LEY s ng CRL 2312075 27 gt amp amp 2 7 CES KC Korea Warning Statement BE 717 HRS d n o 717 AB 82733 7 7 22M FE AAAA Ak 5425 SE 729444 NGO 5 deu Od 2924 344 ULLI 49944 NA REACH Complying with the REACH Registration Evaluation Authorisation and Restriction of Chemicals regulatory framework we published the chemical substances in our products at ASUS REACH website at http csr asus com english REACH htm DO NOT throw the motherboard in municipal waste This product has been designed to enable proper reuse of parts and recycling This symbol of the crossed out wheeled bin ii indicates that the product electrical and electronic equipment should not be placed in municipal waste Check local regulations for disposal of electronic products DO NOT throw the mercury containing button cell battery in municip
56. ization of a minimal set of devices to launch active boot option Configuration options Disabled Enabled 4 The following three items appear only when you set Fast Boot to Enabled USB Support Partial Initial Disabled All USB devices will not be available until OS boot up for a fastest POST time Full Initial All USB devices will be available during POST This process will extend the POST time Partial Initial For a faster POST time only the USB ports with keyboard and mouse connections will be detected PS 2 Keyboard and Mouse Support Auto Auto For a faster BIOS POST time PS 2 devices will only be available when the system boots up PS 2 devices will not be available and BIOS Setup program will not be accessible via PS 2 devices when the system is restarted Full Initial For full system control PS 2 devices will be available during POST at any circumstances This process will extend the POST time Disabled All PS 2 devices will not be available until OS bootup for a fastest POST time Network Stack Driver Support Disabled Disabled The BIOS skips over the Network Stack Driver and tries to boot from the next device Enabled Allows the BIOS to boot from the Network Stack Driver Next boot after AC Power Loss Normal Boot Normal Boot Returns to normal boot on the next boot after an AC power loss Fast Boot Accelerates the boot speed on the next boot after an AC power loss 2 7 2 Full
57. just the maximum CPU fan duty cycle The values range from 40 to 100 When the CPU temperature reaches the upper limit the CPU fan will operate at the maximum duty cycle CPU_FAN Lower Temperature 20 C Displays the lower limit of the CPU temperature CPU_FAN Fan Min Duty Cycle 40 Use the lt gt and lt gt keys to adjust the minimum CPU fan duty cycle The values range from 40 to 100 When the CPU temperature is under the lower limit the CPU fan will operate at the minimum duty cycle CPU Voltage 3 3V Voltage 5V Voltage 12V Voltage The onboard hardware monitor automatically detects the voltage output through the onboard voltage regulators Select Ignore if you do not want to detect this item 2 6 5 Anti Surge Support Enabled This item allows you to enable or disable the Anti Surge function Configuration options Auto Disabled Enabled ASUS F2A55 M LK2 Series 2 7 Boot menu The Boot menu items allow you to change the system boot options ER Sepport PZ Keyboard ami Bee Taupas 1 Metuerk Stack Iriver Support Rest linet after MC Mower Loss Fall Screen Loge POST Delay Tine Meetup EE Walt Por PI If Eris DR ioe WP Beien Setup Mode CR Compatibility Support Modale Scroll down to display the following items But Option 3 kot Option 2 Hard Delve BBS Pr bon lies Chapter 2 BIOS information 2 25 2 26 2 7 1 Fast Boot Enabled Enable or disable boot with initial
58. llows you to set the system time 2 34 Security The Security menu items allow you to change the system security settings YA If you have forgotten your BIOS password erase the CMOS Real Time Clock RTC RAM to clear the BIOS password See section 1 7 Jumpers for information on how to erase the RTC RAM The Administrator or User Password items on top of the screen show the default Not Installed After you set a password these items show Installed ASUS F2A55 M LK2 Series Administrator Password If you have set an administrator password we recommend that you enter the administrator password for accessing the system Otherwise you might be able to see or change only selected fields in the BIOS setup program To set an administrator password 1 Select the Administrator Password item and press lt Enter gt 2 From the Create New Password box key in a password then press lt Enter gt 3 Confirm the password when prompted To change an administrator password 1 Select the Administrator Password item and press lt Enter gt 2 From the Enter Current Password box key in the current password then press lt Enter gt 3 From the Create New Password box key in a new password then press lt Enter gt 4 Confirm the password when prompted To clear the administrator password follow the same steps as in changing an administrator password but press lt Enter gt when prompted to create confirm the password After
59. lly detects and displays the CPU chassis fan speeds in rotations per minute RPM If the fan is not connected to the motherboard the field shows N A Select Ignore if you do not wish to display the detected speed 2 6 3 CPU Q Fan Control Enabled Disabled Disables the CPU Q Fan control feature Enabled Enables the CPU Q Fan control feature Fan Speed Low Limit 200 RPM This item appears only when you enable the CPU Q Fan Control feature and allows you to disable or set the CPU fan warning speed Configuration options Ignore 200RPM 300 RPM 400 RPM 500 RPM 600 RPM Chapter 2 BIOS information 2 23 2 24 Fan Profile Standard This item appears only when you enable the CPU Q Fan Control feature and allows you to set the appropriate performance level of the CPU fan Standard Sets to Standard to make the CPU fan automatically adjust depending on the CPU temperature Silent Sets to Silent to minimize the fan speed for quiet CPU fan operation Turbo Sets to Turbo to achieve maximum CPU fan speed Manual Sets to Manual to assign detailed fan speed control parameters YA The following four items appear only when you set CPU Profile to Manual 2 6 4 CPU FAN Upper Temperature 70 C Use the lt gt and lt gt keys to adjust the upper limit of the CPU temperature The values range from 20 C to 90 C CPU FAN Fan Max Duty Cycle 100 Use the lt gt and lt gt keys to ad
60. m Auto Allows the system to detect the presence of USB devices at startup If detected the USB controller legacy mode is enabled If no USB device is detected the legacy USB support is disabled EHCI Hand off Disabled Enabled Enables the support for operating systems without an EHCI hand off feature Disabled Disables the function USB Single Port Control Allows you to enable disable individual USB ports 2 5 4 NB Configuration IGFX Multi Monitor Disabled Enables or disables the Internal Graphics Device Multi Monitor support for add on VGA devices And the memory size of Internal Graphics Device will keep memory reserved Configuration options Disabled Enabled Primary Video Device PCIE PCI Video Selects the primary display device Configuration options IGFX Video PCIE PCI Video Integrated Graphics Auto Enables the integrated graphics controller Configuration options Auto Force UMA Frame Buffer Size Auto This item appears only when you set the previous item to Force Configuration options Auto 32M 64M 128M 2G Chapter 2 BIOS information 2 19 2 5 5 Onboard Devices Configuration HD Audio Device Enabled Enabled Enables the High Definition Audio Controller Disabled Disables the controller YA The following two items appear only when you set the HD Audio Device item to Enabled Front Panel Type HD Allows you to set the front panel audio connector AAFP
61. n are for reference purposes only and may not exactly match what you see on your screen Ensure that a USB mouse is connected to your motherboard if you want to use the mouse to control the BIOS setup program The default BIOS settings for this motherboard apply for most conditions to ensure optimum performance If the system becomes unstable after changing any BIOS settings load the default settings to ensure system compatibility and stability Select the Load Optimized Defaults item under the Exit Menu See section 2 9 Exit Menu If the system fails to boot after changing any BIOS setting try to clear the CMOS and reset the motherboard to the default value Refer to section 1 7 Jumpers on how to erase the RTC RAM The BIOS setup program does not support the bluetooth devices BIOS menu screen The BIOS setup program can be used under two modes EZ Mode and Advanced Mode You can change modes from the Exit menu or from the Exit Advanced Mode button in the EZ Mode Advanced Mode screen ASUS F2A55 M LK2 Series EZ Mode By default the EZ Mode screen appears when you enter the BIOS setup program The EZ Mode provides you an overview of the basic system information and allows you to select the display language system performance mode and boot device priority To access the Advanced Mode click Exit Advanced Mode then select Advanced Mode or press F7 hot key for the advanced BIOS settings The default screen for entering the
62. n the system Click an item to start booting from the selected device Chapter 2 BIOS information 2 29 2 30 2 8 Tools menu The Tools menu items allow you to configure options for special functions Select an item then press lt Enter gt to display the submenu RS Flash 2 RAS SPD Laformat bow SS OC Profile 2 8 1 ASUS EZ Flash 2 Utility Allows you to run ASUS EZ Flash 2 Press Enter to launch the ASUS EZ Flash 2 screen YA For more details see section 2 1 2 ASUS EZ Flash 2 2 8 2 ASUS SPD Information DIMM Slot DIMM A1 Displays the Serial Presence Detect SPD information of the DIMM module installed on the selected slot Configuration options DIMM A1 DIMM B1 2 8 3 ASUS O C Profile This item allows you to store or load multiple BIOS settings KA The Setup Profile Status items show Not Installed if no profile is created Label Allows you to input the label of the setup profile Save to Profile Allows you to save the current BIOS settings to the BIOS Flash and create a profile Key in a profile number from one to eight press lt Enter gt and then select Yes Load from Profile Allows you to load the previous BIOS settings saved in the BIOS Flash Key in the profile number that saved your CMOS settings press lt Enter gt and then select Yes DONOT shut down or reset the system while updating the BIOS to prevent the system boot failure We recommend that yo
63. ng capability Always install DIMMs with the same CAS latency For optimal compatibility we recommend that you install memory modules of the same version or date code D C from the same vendor Check with the retailer to get the correct memory modules Due to the memory address limitation on 32 bit Windows OS when you install 4GB or more memory on the motherboard the actual usable memory for the OS can be about 3GB or less For effective use of memory we recommend that you do any of the following Install a maximum of 3GB system memory if you are using a 32 bit Windows OS Use a 64 bit Windows OS if you want to install 4GB or more memory on the motherboard This motherboard does not support DIMMs made up of 512Mb 64MB chips or less The maximum 32GB memory capacity can be supported with 16GB or above DIMMs ASUS will update the memory QVL once the DIMMs are available in the market YA The default memory operation frequency is dependent on its Serial Presence Detect SPD which is the standard way of accessing information from a memory module Under the default state some memory modules for overclocking may operate at a lower frequency than the vendor marked value To operate at the vendor marked or at a higher frequency refer to section 2 4 Ai Tweaker menu for manual memory frequency adjustment For system stability use a more efficient memory cooling system to support a full memory load 2 DIMMs or o
64. obile phone Manufacturer ASUSTeK Computer Inc Address 4F No 150 LI TE RD PEITOU TAIPEI 112 TAIWAN R O C Authorised representative in ASUS Computer GmbH Europe Address HARKORT STR 21 23 40880 RATINGEN GERMANY ASUS F2A55 M LK2 Series A 3 almeubis ef zioz bunew 39 601 11 uibaq o Jea usys Auer 100121 039 UONISOd Bupyew Awiojuoo 93 ZVOZ OL Jag ajeq uonese pag Bupew 39X angoa SHOHNING OZA 600 827 on 03 uonejnbay 3 6002 zb9 ON 03 uonejnbay C 8002 9221 ON 03 UONeInBay 3 amond d13 93 S2 1 6002 LLOZ ZLY 2002 99009 N3 OLOZ ZY 2002 99009 N3 DO LLOZ ZIV 1 05609 N3 RI 6002 LLW 1 05609 N3 O aNd 7 86 900200 800Z LLEZ9 NI z00z S8 0S NI 08002 171 2 29 LOE NA 602002 16 92 ZOE NI 90 2002 2 T LA 9 ZOE Na 60 0L0z L G LA 72 687 LOE NA G0 6002 L L ZA 21 68 LOE NI LI 2002 L HLA 668 LOE NI LI S002 L E LA 2 68 LOE NA G0 6002 L P LA 7687 LOE NA 80 2002 PLA 68 LOE NA 60 1402 2 6 LA 1 68 LOE NI 0L0z 6 729 NI 1002 09 05 N3 o oLoz L S LA 2 0 00 NA 00102 1 2 14 L 0 006 NA L0 6002 L L LA 29 ZOE NI LO 6002 L L LA ere ZOE Na LI LL02 L 9 LA E68 LOE NA L0 LLOZ 1 Z SA 2 806 LOE NA SO LL0Z L Z SA 1 806 LOE NA E0 E002 7 0 6A LLS LOE NA B0 0L02 L P LA 0 00 NA 80 0L02 L 9 LA Opt 006 NA 01 9002 2 LA 8ZE 00 NI DO000OOD
65. ompatibility and stability we recommend that you press lt F5 gt to load default BIOS values DO NOT shut down or reset the system while updating the BIOS Doing so can cause H system boot failure Chapter 2 BIOS information 2 3 2 1 4 ASUS BIOS Updater The ASUS BIOS Updater allows you to update BIOS in DOS environment This utility also allows you to copy the current BIOS file that you can use as a backup when the BIOS fails or gets corrupted during the updating process YA The succeeding utility screens are for reference only The actual utility screen displays may not be same as shown Before updating BIOS 1 Prepare the motherboard support DVD and a USB flash drive formatted using FAT32 16 on a single partition 2 Download the latest BIOS file and BIOS Updater from the ASUS website at http support asus com and save them on the USB flash drive A NTFS is not supported under DOS environment Do not save the BIOS file and BIOS Updater to a hard disk drive or USB flash drive in NTFS format 3 Turn off the computer and disconnect all SATA hard disk drives optional Booting the system in DOS environment 1 Insert the USB flash drive with the latest BIOS file and BIOS Updater to the USB port 2 Boot your computer When the ASUS Logo appears press lt F8 gt to show the BIOS Boot Device Select Menu Insert the support DVD into the optical drive and select the optical drive as the boot device PI boot device S
66. ou installed on the motherboard Renory Frequency Su Moltiplber RU frege 00 Zen ug Bode Mitt Tining Control CRI Voltage CRI Offset Made Sige 0 Uf fort Voltage UDORE Of fart Mode Stan Scroll down to display the following items 0 Bi net Made Siga CPO Offset Bol Lago NONG Offset Mods Siga 0 1 Voltage bm Voltage 35 1 10 Voltage CPU Load Lise Calibration CHUB Load Liem Cal brat bon CAI Corrent Capability CR Carrenk Capability CRU Phase Contro CPU Bol tago ASUS F2A55 M LK2 Series Target CPU Speed xxxxMHz Displays the current CPU speed Target DRAM Speed xxxxMHz Displays the current DRAM speed 2 4 1 Ai Overclock Tuner Auto Allows you to select the CPU overclocking options to achieve the desired CPU internal frequency Select any of these preset overclocking configuration options Auto Loads the optimal settings for the system Manual Allows you to individually set overclocking parameters APU Frequency XXX This item appears only when you set the Ai Overclock Tuner item to Manual Use the lt gt and lt gt keys to adjust the value You can also key in the desired value using the numeric keypad The values range from 90 0MHz to 300 0MHz 2 4 2 Memory Frequency Auto Allows you to set the memory operating frequency Configuration options Auto DDR3 800MHz DDR3 1066MHZz DDR3 1333MHZz DDR3 1600MHz DDR3
67. r supply is set to the correct voltage in your area If you are not sure about the voltage of the electrical outlet you are using contact your local power company If the power supply is broken do not try to fix it by yourself Contact a qualified service technician or your retailer Operation safety Before installing the motherboard and adding devices on it carefully read all the manuals that came with the package Before using the product ensure all cables are correctly connected and the power cables are not damaged If you detect any damage contact your dealer immediately To avoid short circuits keep paper clips screws and staples away from connectors slots sockets and circuitry Avoid dust humidity and temperature extremes Do not place the product in any area where it may become wet Place the product on a stable surface If you encounter technical problems with the product contact a qualified service technician or your retailer About this guide This user guide contains the information you need when installing and configuring the motherboard How this guide is organized This guide contains the following parts Chapter 1 Product introduction This chapter describes the features of the motherboard and the new technology it supports Chapter 2 BIOS information This chapter tells how to change system settings through the BIOS Setup menus Detailed descriptions of the BIOS parameters are also provided
68. reen for entering the BIOS setup program EZ Mode Sets EZ Mode as the default screen for entering the BIOS setup program 2 7 8 CSM Parameters This option controls whether or not CSM Compatibility Support Module will be launched Launch CSM Auto Configuration option Auto Enabled Disabled YA The following four items appear only when you set Launch CSM to Enabled Boot Device Control UEFI and Legacy OpROM Configuration option UEFI and Legacy OpRom Legacy OpROM only UEFI only Boot from Network Devices Legacy OpROM first Configuration option Legacy OpROM first UEFI driver first Ignore Boot from Storage Devices Legacy OpRom first Configuration option Both Legacy OpROM first Both UEFI driver first Legacy OpROM first UEFI driver first Ignore Boot from PCle PCI Expansion Devices Legacy OpROM first Configuration option Legacy OpROM first UEFI driver first Chapter 2 BIOS information 2 27 2 7 9 Secure Boot This option allows you to configure the Secure Boot related parameters OS Type Other OS Configuration option Windows UEFI mode Other OS Secure Boot Mode Standard This item appears only when you set the OS Type to Windows UEFI Configuration option Standard Custom VA The following items appear when Secure Boot Mode is set to Custom Key Management Manage the Secure Boot Keys PK KEK DB DBX Install default Secure Boot Keys Configuration options
69. rmal condition or in sleep mode 2 Keyboard power 3 pin KBPWR This jumper allows you to enable or disable the keyboard wake up feature When you set this jumper to pins 2 3 5VSB you can wake up the computer by pressing a key on the keyboard This feature requires an ATX power supply that can supply at least 1A on the 5VSB lead and a corresponding setting in the BIOS KBPWR 12 CET 5V Default 23 CEE 5VSB F2A55 M LK2 PLUS Keyboard power setting 1 20 Chapter 1 Product introduction 1 8 Connectors 1 8 1 Rear panel ports 10 9 8 7 6 5 1 PS 2 Mouse port green This port is for a PS 2 mouse 2 LAN RJ 45 port This port allows Gigabit connection to a Local Area Network LAN through a network hub LAN port LED indications ACT LINK SPEED LED LED Activity Link LED Speed LED sella OFF No link OFF 10Mbps connection PE ORANGE Linked ORANGE 100Mbps connection BLINKING Data activity GREEN 1Gbps connection LAN port 3 Line In port light blue This port connects to the tape CD DVD player or other audio sources 4 Line Out port lime This port connects to a headphone or a speaker In the 4 6 and 8 channel configurations the function of this port becomes Front Speaker Out 5 Microphone port pink This port connects to a microphone YA Refer to the audio configuration table below for the function of the audio ports
70. te a RAID configuration from the SATA hard disk drives AHCI Set to AHCI when you want the SATA hard disk drives to use the AHCI Advanced Host Controller Interface The AHCI allows the onboard storage driver to enable advanced Serial ATA features that increases storage performance on random workloads by allowing the drive to internally optimize the order of commands Board SATA RAID ROM Legacy ROM This item only appears when OnChip SATA Type is set to RAID Disabled Disables this function Legacy ROM Select this option when using legacy operating systems UEFI DRIVER Select this option when using UEFI operating systems S M A R T Status Check Enabled S M A R T Self Monitoring Analysis and Reporting Technology is a monitor system When read write of your hard disk errors occur this feature allows the hard disk to report warning messages during the POST Configuration options Enabled Disabled ASUS F2A55 M LK2 Series 2 5 3 USB Configuration The items in this menu allow you to change the USB related features YA The USB Devices item shows the auto detected values If no USB device is detected the item shows None USB Device Enable Enabled Enabled Enables available USB devices Disabled Disables available USB devices Legacy USB Support Enabled Enabled Enables the support for USB devices on legacy operating systems OS Disabled The USB devices can be used only for the BIOS setup progra
71. that you place it into the chassis in the correct orientation The edge with external ports goes to the rear part of the chassis as indicated in the image below 1 3 2 Screw holes Place six screws into the holes indicated by circles to secure the motherboard to the chassis A DO NOT overtighten the screws Doing so can damage the motherboard Place this side towards the rear of the chassis ASUS F2A55 M LK2 Series 1 3 3 Motherboard layout YA F2A55 M LK2 Series motherboards include F2A55 M LK2 PLUS and F2A55 M LK2 Ce models The package contents vary from models The layout illustrations in this user guide are for F2A55 M LK2 PLUS only 17 8cm 7 in CI TO NA KBMS 0 ATX12V CPU_FAN um a 3135 alla SE KEPWI elle 6 EE SEPA E a 5 S alla ra lle lt e SUR o gt wd 515 O a m 3 Si 5 USB34 alla o o amp amp alla alla LAN1_USB12 S CHA FAN 3 AUDIO F F2A55 M LK2 PLUS PCIEX16 Ge SATA3G 1 jo i PCIEX1 1 5 AMD im O ASS SATA3G_2 Super TJ LC PCI 3246 BIOS CLRTC Mla 8 SPEAKER a spor OUT HO d USB56 CE SATA3G_3 SAT
72. u screen when there are items that do not fit on the screen Press the Up Down arrow keys or lt Page Ups lt Page Down gt keys to display the other items on the screen Navigation keys At the bottom right corner of the menu screen are the navigation keys for the BIOS setup program Use the navigation keys to select items in the menu and change the settings General help At the top right corner of the menu screen is a brief description of the selected item Configuration fields These fields show the values for the menu items If an item is user configurable you can change the value of the field opposite the item You cannot select an item that is not user configurable A configurable field is highlighted when selected To change the value of a field select it and press lt Enter gt or click on it to display a list of options Chapter 2 BIOS information 2 9 2 10 2 3 Main menu The Main menu screen appears when you enter the Advanced Mode of the BIOS Setup program The Main menu provides you an overview of the basic system information and allows you to set the system date time language and security settings 2 3 1 System Language English Allows you to choose the BIOS language version from the options Configuration options English Fran ais Espa ol Deutsch Pyccxu D 458 2820730 fal AH IC 2 3 2 System Date Day xx xx xxxx Allows you to set the system date 2 3 3 System Time xx xx xx A
73. u update the BIOS file only coming from the same memory CPU configuration and BIOS version ASUS F2A55 M LK2 Series 2 9 Exit menu The Exit menu items allow you to load the optimal default values for the BIOS items and save or discard your changes to the BIOS items You can access the EZ Mode from the Exit menu Load Optimized Defaults This option allows you to load the default values for each of the parameters on the Setup menus When you select this option or if you press lt F5 gt a confirmation window appears Select Yes to load the default values Save Changes amp Reset Once you are finished making your selections choose this option from the Exit menu to ensure the values you selected are saved When you select this option or if you press lt F10 gt a confirmation window appears Select Yes to save changes and exit Discard Changes amp Exit This option allows you to exit the Setup program without saving your changes When you select this option or if you press lt Esc gt a confirmation window appears Select Yes to discard changes and exit ASUS EZ Mode This option allows you to enter the EZ Mode screen Launch EFI Shell from filesystem device This option allows you to attempt to launch the UEFI Shell application shellx64 efi from one of the available devices that have a filesystem Chapter 2 BIOS information 2 31 2 32 ASUS F2A55 M LK2 Series Appendices Notices Federal Communications Commission St
74. verclocking condition F2A55 M LK2 Series Motherboard Qualified Vendors Lists QVL DDR3 1866 MHz capability Chi DIMM socket Part No SS DS SP ChipNO Timing Voltage Support Optional 1 DIMM 2DIMMs Brand CMT4GX3M2A1866C9 XMP 4GB 2 x 2GB 9 9 9 24 1 65V CMT6GX3MA1866C9 XMP 6GB 3 x 2GB 9 9 9 24 1 65V CMZ8GX3M2A1866C9 XMP 8GB 2 x 4GB 9 10 9 27 1 50V F3 14900CL9Q 16GBZL XMP1 3 16GB 4GB x 4 n 9 10 9 28 1 5V F3 14900CL10Q2 64GBZLD XMP1 3 64GB 8GB x 8 H 10 11 10 30 1 5V F3 14900CL9D 8GBXL XMP 8GB 2 x 4GB RH 9 10 9 28 1 5V F3 14900CL9Q 8GBXL XMP 8GB 2GB x 4 9 9 9 24 1 6V KHX1866C9D3K4 16GX XMP 16GB 4GB x 4 1 65V KHX1866C9D3T1K3 6GX XMP 6GB 3 x 2GB 1 65V KHX1866C11D3P1K2 8G 8GB 4GB x 2 LI gt 1 5V 1 65V Chapter 1 Product introduction DDR3 1600 MHz capability Vendors AM2U16BC2P1 Timing 3CCD 1509A EL1126T DIMM socket support Optional 1DIMM 2DIMMs Voltage AM2U16BC4P2 AX3U1600GC4G9 2G XMP 8GB 2 x 4GB 3CCD 1509A EL1126T 9 9 9 24 1 55V 1 75V AX3U1600XC4G79 2X XMP 8GB 2 x 4GB 5 7 9 7 21 1 55V 1 75V 78 B1GE3 9L10C 4GB Apacer C AM5D5908D EQSCK CMD12GX3M6A1600C8 XMP 12GB 6 x 2GB 8 8 8 24 1 65V CMZ32GX3M4X1600C10 XMP 32GB 8GB x 4 10 10 10 27 1 50V CMP4GX3M2A1600C8 XMP 4GB 2 x 2GB 8 8 8 24 1 65V CMP4GX3M2A1600C9 XMP 4GB 2 x 2
75. you clear the password the Administrator Password item on top of the screen shows Not Installed User Password If you have set a user password you must enter the user password for accessing the system The User Password item on top of the screen shows the default Not Installed After you set a password this item shows Installed To set a user password 1 Select the User Password item and press lt Enter gt 2 From the Create New Password box key in a password then press lt Enter gt 3 Confirm the password when prompted To change a user password 1 Select the User Password item and press lt Enter gt 2 From the Enter Current Password box key in the current password then press lt Enter gt 3 From the Create New Password box key in a new password then press lt Enter gt 4 Confirm the password when prompted To clear the user password follow the same steps as in changing a user password but press lt Enter gt when prompted to create confirm the password After you clear the password the User Password item on top of the screen shows Not Installed Chapter 2 BIOS information 2 11 2 12 2 4 Ai Tweaker menu The Ai Tweaker menu items allow you to configure overclocking related items l Be cautious when changing the settings of the Ai Tweaker menu items Incorrect field values can cause the system to malfunction The configuration options for this section vary depending on the CPU and DIMM model y

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