Dell 620 Laptop User Manual
Contents
1. MEC cover 0 RIMM1 A _ channe A RIMM2 A riser board RIMM3 B channel B FF a Figure 1 RIMM Socket Designations System Memory Upgrade RIMM Installation Guidelines You must install RIM Ms in pairs This means that the RIMM in each socket on one MEC must be the same memory capacity density and speed as the corresponding RIMM in the same socket on the other MEC Also for either channel A or B of each MEC if one socket contains a RIMM then the other socket must contain either another RIMM or a continuity RIMM CRIM M As an example if you install only one pair of RIMMs in the RIMM1 A socket of each MEC then you must install a CRIMM in socket RIMM2_A of each MEC Channel B sockets RIM M3_B and RIMM4 B may remain empty or it may contain one or two CRIMMs per MEC see Figure 1 However if channel A contains two RIM Ms and you want to install additional RIM Ms the preceding rules also apply for channel B NOTES If 512 MB RIMMs are used they must be populated starting with the bottom RIMM socket RIMM 4 B the one closest to the system board and working up For example see the configuration in the last row in Table 1 In this example you would insert the 512 MB RIM Ms into the bottom three sockets RIMM4A B RIMM3 B RIMM 2_A and insert a CRIMM into the topmost socket RIMM 1 A When you add 512 MB RIMMs from a customer kit you must remove all existing RIMMs and reinstall the new 512 M2. in the User s Guide System Memory Upgrade 7 15 Run the Dell Diagnostics to verify that the memory modules are operating properly NOTE For information on troubleshooting and running the Dell Diagnostics see Troubleshooting in the User s Guide Installing a RIMM NOTICE Before you upgrade RIMMs you must upgrade the BIOS See Upgrading the BIOS on page 1 for instructions If a RIMM ts already installed in the socket you want to use you must remove it For instructions see Removing a RIMM on page 9 To install a RIMM perform the following steps see Figure 2 L Locate the plastic securing clips at each end of the socket Press the clips out ward until they snap open NOTICE To avoid damage to the memory module press the module straight down into the socket with equal force applied at each end of the module 2 Press the memory module straight into the socket until the securing tabs snap into place around the ends of the memory module securing clips 2 Figure 2 Installing a RIMM System Memory Upgrade Support dell com Removing a RIMM NOTICE To avoid damage to the memory module press the securing dips with equal force applied at each end of the socket To remove a RIMM press the securing clips outward simultaneously until the RIMM disengages from the socket See Figure 3 It should pop out slightly securing Clips 2 2 Ba A Figure 3 Removing a RIMM System Memory
3. on page 1 for instructions Turn off the computer and peripherals disconnect them from their electrical out lets and wait 10 to 20 seconds Lay the computer on its right side Open the computer cover To lift the MEC from the system board rotate the MEC cover up and remove the MEC from the computer See Figure 1 NOTE For instructions see Removing and Installing a Memory Expansion Card in your system User s Guide Repeat Step 5 for the other MEC Install or remove RIMMs and CRIMMs as necessary to reach the desired mem ory total NOTE For instructions on installing RIMMs see Installing a RIMM on page 8 For instructions on removing RIM Ms see Removing a RIMM on page 9 Reinstall both MECs on the system board NOTE For instructions see Removing and Installing a Memory Expansion Card in your system User s Guide Close the computer cover 10 Stand the computer upright System Memory Upgrade Support dell com 11 12 13 14 Reconnect the computer and peripherals to their power sources and tum them on As the system boots it detects the presence of the new RIMMs and automati cally changes the system configuration information in system setup NOTES Adding or removing RIM Ms causes the following message to be dis played at the next system start up The amount of system memory has changed After you replace the cover if the chassis intrusion option is set to Enable
4. 20 System Memory Upgrade This document provides instructions for upgrading the Rambus inline memory mod ules RIMMs on the Dell Precision WorkStation 620 Dell Precision 620 systems Support dual direct Rambus dynamic random access memory RDRAM modules These RIM Ms feature error checking and correction ECC NOTES Dell recommends that only a technically knowledgeable person perform this procedure Dell recommends that you read the entire procedure before you begin You must also be familiar with removing the system cover and locating the RIM Ms Dell recommends that you print the contents of the system User s Guide for referencing important information that may not be available during critical procedures This document is available on your Dell Precision ResourceCD and can also be accessed from the User s Guides icon on your current desktop if you have not reinstalled the operating system Upgrading the BIOS You must upgrade the basic input output system BIOS before you upgrade the RIMMs Otherwise the existing BIOS may not recognize the new RIMMs and the system will not operate To upgrade the BIOS L Download the BIOS update utility for the computer to be updated from the Dell Support website a Go to http support dell com If this is your first time to use this website complete the one time registration b Click Downloads for Your Dell c Enter your Service Tag Number for the computer to be updated or s
5. B RIM Ms beginning with socket RIMM 4 B and working up on each riser board in mirror fashion Dell does not recommend or support the mixing of old and new 512 MB RIM Ms in sockets RIMM1 A and RIMM2 A Table 1 Sample Factory Installed RIMM Configurations per MEC Populate both MECs as follows Support dell com For Total Desired RIMM4 B Memory RIMM1_A top RIMM2_A RIMM3_B bottom 128 MB CRIMM 64 MB Empty Empty 256 MB CRIMM 128 MB Empty Empty 384 MB 128 MB 64 MB CRIMM Empty 512 MB 128 MB 128 MB CRIMM Empty 512 MB CRIMM 256 MB Empty Empty 768 MB 256 MB 128 MB CRIMM Empty 1024 MB 128 MB 128 MB 128 MB 128 MB 1024 MB 256 MB 256 MB CRIMM Empty 1536 MB 256 MB 256 MB 256 MB CRIMM 2048 MB 256 MB 256 MB 256 MB 256 MB System Memory Upgrade 5 6 Table 1 Sample Factory Installed RIMM Configurations per MEC continued Populate both MECs as follows For Total Desired RIMM4_B Memory RIMMI1 A top RIMM2_A RIMM3_B bottom 2048 MB Empty CRIMM 512 MB 512 MB 2560 MB CRIMM 256 MB 512 MB 512 MB 3072 MB 256 MB 256 MB 512 MB 512 MB 3072 MB CRIMM 512 MB 512 MB 512 MB To upgrade memory perform the following steps NOTICE See Protecting Against Electrostatic Discharge in your System Information Guide 1 9 CAUTION Before you remove your computer cover see Safety First For You and Your Computer in your system User s Guide If you have not already done so upgrade the BIOS See Upgrading the BIOS
6. Dell Precision WorkStation 620 System Memory Upgrade www dell com support dell com Dell Precision WorkStation 620 System Memory Upgrade www dell com support dell com Notes Notices and Cautions Throughout this guide blocks of text may be accompanied by an icon and printed in bold type or in italic type These blocks are notes notices and cautions and they are used as follows NOTE A NOTE indicates important information that helps you make better use of your computer system NOTICE A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem CAUTION A CAUTION indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury Information in this document is subject to change without notice 2001 Dell Computer Corporation All rights reserved Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden Trademarks used in this text Dell Dell Precision and the DELL logo are trademarks of Dell Computer Corporation Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products Dell Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own May 2001 P N 0E137 Rev A00 Support dell com Dell Precision WorkStation 6
7. Upgrade 9 10 System Memory Upgrade Printed in the U S A 00E137 A00 P N 0E 137 Rev A00 www dell com support dell com
8. d the chassis intrusion detector causes the following message to be displayed at the next system start up ALERT Cover was previously removed Enter system setup When Setup appears in the upperright corner of the screen press lt F2 gt If you wait too long and the operating system begins to load into memory allow the system to complete the load operation shut down the system and try again NOTE For instructions on using system setup see the User s Guide Reset the Chassis Intrusion option a Press the down arrow key to move to the System Secunity option b Press lt Enter gt to access the System Security option s pop up menu c Press the down arrow key to move to the Chassis Intrusion option d Press the left or right arrow key to select Reset e Choose Enabled Enabled Silent or Disabled NOTES The chassis intrusion default is Enabled If a setup password has been assigned by someone else contact the network administrator for information on resetting the chassis intrusion detector See the system User s Guide for information on the chassis intrusion detector When the memory total is correct press lt Esc gt to exit system setup If the memory total is incorrect repeat steps 2 through 9 Check the installed MECs and modules to ensure that they are seated properly in their sockets Then repeat steps 10 through 13 If the memory total is still incorrect contact Dell for technical support See Get ting Help
9. elect the appropriate Dell system System Memory Upgrade 1 2 d Select the appropriate operating system OS and language for the computer to be updated e Select FlashBIOS Updates for the download category f Click Go and follow the instructions on screen to create a diskette containing the BIOS update files NOTE For some Dell systems you are given a choice to create a diskette con taining the BIOS update files or to download a file you can use from the hard drive Select the choice to use the file that creates an installation diskette 2 Insert the BIOS update diskette into the diskette drive of the computer to be updated Then restart the computer The computer automatically updates the BIOS from the diskette 3 When the computer begins to restart and the Dell logo screen appears remove the diskette from the diskette drive so that the computer does not boot from the diskette again Precautionary Measures NOTICE Before you upgrade the RIMMs you must upgrade the BIOS See Upgrading the BIOS on page 1 for instructions Before you perform any of the procedures in this document read the following notice for your personal safety and to prevent damage to the system from electrostatic dis charge ESD NOTICE The procedure in this document requires that you remove the cover and work inside your computer Do not attempt to service the com puter except as explained in this document and elsewhere in Dell doc
10. jury or shock In addition take note of these safety guidelines when appropriate e When you disconnect a cable pull on its connector or on its strain relief loop not on the cable itself Some cables have a connector with locking tabs if you are dis connecting this type of cable press in on the locking tabs before disconnecting the cable As you pull connectors apart keep them evenly aligned to avoid bend ing any connector pins Also before you connect a cable make sure both connectors are correctly oriented and aligned e Handle components and cards with care Do not touch the components or con tacts on a card Hold a card by its edges or by its metal mounting bracket Hold a component such as a RIMM by its edges not by its pins Upgrading System Memory NOTICE Before you upgrade the RIMMs you must upgrade the BIOS See Upgrading the BIOS on page 1 for instructions This computer has two memory expansion cards MECs both consisting of four sockets RIMM1 A RIMM2 A RIMM3 B and RIMM4 B On each MEC sockets RIMM1 A and RIMM2 A comprise channel A and sockets RIMM3_B and RIMM4 B comprise channel B Dell Precision 620 systems support a maximum of eight RIM Ms four RIM Ms per MEC for up to 3 gigabytes GB of total memory NOTE Although you can insert 512 megabyte MB RIM Ms in each socket the BIOS revision only supports a maximum of 3 GB Figure 1 shows the RIMMs and RIMM sockets System Memory Upgrade 3 4
11. umentation Always follow installation and service instructions closely Before Removing the Cover Before you remove the computer cover perform the following steps in the sequence Indicated NOTICE To help avoid possible damage to the system board unplug your computer system and wait 15 to 30 seconds before removing a component from the system board or disconnecting a peripheral device from the computer L Tum off the computer and any peripherals 2 Disconnect the computer and peripherals from their power sources Also discon nect any telephone or telecommunication lines from the computer Before disconnecting a peripheral from the computer or removing a component from the system board verify that the standby power light located on the sys tem board has tumed off If it is on you may need to wait 15 to 30 seconds for it System Memory Upgrade Support dell com to go out See the internal system board label that is attached to the cover of your computer 3 Ground yourself by touching an unpainted metal surface on the chassis such as the metal around the card slot openings at the back of the computer before touching anything inside your computer Dell recommends that you use a wrist grounding strap in this operation While you work penodically touch an unpainted metal surface on the computer chassis to dissipate any static electricity that might harm internal components Doing so reduces the potential for personal in
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