Lenovo 4219, 4220, 4222, 4215, 4221 manual Opening the retaining clips

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vUse 1 GB, 2 GB, or 4 GB memory modules in any combination up to a maximum of 16 GB.

vInstall memory modules in the sequence of DIMM 1, DIMM 3, DIMM 2, and DIMM 4. See “Locating parts on the system board” on page 11.

To install or replace a memory module, do the following:

1.Remove the computer cover. See “Removing the computer cover” on page 14.

2.Locate the memory slots. See “Locating parts on the system board” on page 11.

3.Remove any parts that might prevent your access to the memory slots. Depending on your computer model, you might need to remove the PCI Express x16 graphics card for easier access to the memory slots. See “Installing or replacing a PCI card” on page 16.

4.Open the retaining clips.

Figure 11. Opening the retaining clips

If you are replacing an old memory module, open the retaining clips and gently pull the memory module out of the memory slot.

Figure 12. Removing a memory module

20User Guide

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Contents ThinkStation User Guide Page ThinkStation User Guide First Edition February Copyright Lenovo Contents Index Important safety information Vi User Guide Features Product overviewSystem management features Security features Specifications DimensionsSoftware overview Software provided by LenovoAdobe Reader Antivirus softwareLocations Locating connectors on the front of your computer Front connector locationsLocating connectors on the rear of your computer Rear connector locationsConnector Description Locating components Component locationsLocating parts on the system board Locating internal drivesDrive bay locations Installing or replacing hardware Installing or replacing hardwareHandling static-sensitive devices Installing external options Removing the computer coverRemoving and reinstalling the front bezel Removing the computer coverInstalling or replacing a PCI card Removing the front bezelOpening the PCI card latch Removing a PCI card Installing or replacing a memory module What to do nextOpening the retaining clips Installing or replacing the optical drive Installing a memory moduleRemoving the optical drive Installing the optical drive Replacing the power supply assembly Removing the screws for the power supply assemblyReplacing the heat sink and fan assembly Removing the heat sink and fan assembly Replacing the primary hard disk drive Removing the primary hard disk driveInstalling the hard disk drive into the bracket Installing the primary hard disk drive Replacing the secondary hard disk driveRemoving the secondary hard disk drive Installing the hard disk drive into the bracket Installing the secondary hard disk drive Replacing the card readerRemoving the card reader Replacing the front fan assembly Removing the front fan assembly Installing the front fan assembly Replacing the rear fan assembly Removing the rear fan assemblyInstalling the rear fan assembly Replacing the keyboardKeyboard connectors Replacing the mouseCompleting the parts replacement Mouse connectorsInstalling security features Reinstalling the computer coverInstalling an integrated cable lock Integrated cable lockErasing lost or forgotten passwords clearing Cmos Password protectionPadlock User Guide Creating and using recovery media Recovery informationCreating recovery media Using recovery media Performing a backup operation Performing backup and recovery operationsPerforming a recovery operation Using the Rescue and Recovery workspace Creating and using rescue media Creating rescue mediaUsing rescue media Creating and using a recovery repair disketteUsing a recovery repair diskette Creating a recovery repair disketteInstalling or reinstalling device drivers Setting a rescue device in the startup sequence Solving recovery problemsUsing the Setup Utility program Starting the Setup Utility programViewing and changing settings Using passwordsPassword considerations Power-On PasswordAdministrator Password Hard Disk PasswordSelecting a startup device Enabling or disabling a deviceSelecting a temporary startup device Exiting from the Setup Utility program Advanced settingsSelecting or changing the startup device sequence Creating RAID volumes Configuring RAIDRAID Level Deleting RAID volumes Updating flashing Bios from a disc Using system programsUpdating system programs Updating flashing Bios from your operating system Recovering from a POST/BIOS update failureUpdating system programs User Guide Troubleshooting and diagnostics Basic troubleshootingLenovo ThinkVantage Toolbox Diagnostic programsLenovo System Toolbox PC-Doctor for Rescue and Recovery PC-Doctor for DOSCleaning the mouse Optical mouseNon-optical mouse User Guide Getting information, help, and service Information resourcesOnline Books folder Lenovo ThinkVantage ToolsHelp and service Safety and WarrantyUsing the documentation and diagnostic programs Calling for service Using other servicesPurchasing additional services Appendix. Notices Television output notice European conformance CE mark TrademarksIndex CRUPage Page User Guide Page Part Number 71Y8009
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