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Lenovo 1985, 1993, 1995, 1986, 1987, 1994, 1982, 1983, 1990 Locating components, Component locations

Models: 1992 1990 1983 1982 1994 1987 1985 1986 1995 1993

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Locating components

Figure 3 “Component locations” on page 11 shows the locations of the various components in your computer. To remove the computer cover, see “Removing the computer cover” on page 30.

Figure 3. Component locations

1Heat sink and fan assembly

2Memory modules

3Optical drive

4Front audio and USB assembly

5Internal speaker (installed in some models)

6System board

7Hard disk drive

8PCI card (installed in some models)

9Cover presence switch (also called intrusion switch)

10Rear fan

11Power supply assembly

12Microprocessor

Chapter 1. Product overview 11

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Lenovo 1985, 1993, 1995, 1986, 1987, 1994, 1982, 1983, 1990, 1992 manual Locating components, Component locations

Contents

ThinkCentre User Guide Third Edition June Copyright Lenovo 2011 Contents Appendix A. Notices 107 Index Iv ThinkCentre User Guide Static electricity prevention Important safety informationService and upgrades Extension cords and related devices Power cords and power adapters Heat and product ventilation Plugs and outletsExternal devices Operating environment Modem safety information Laser compliance statement Power supply statementCleaning and maintenance ThinkCentre User Guide Product overview Features Connectivity System management featuresInput/Output I/O features Preinstalled operating system Power supplySecurity features Preinstalled software programs Software provided by Lenovo SpecificationsSoftware overview Fingerprint Software Lenovo Solution CenterLenovo ThinkVantage Tools Lenovo Welcome ThinkVantage Rescue and Recovery Product RecoveryThinkVantage Password Manager ThinkVantage Power Manager Locations ThinkVantage System UpdateAdobe Reader Antivirus software Front connector, control, and indicator locations Rear connector locations Locating connectors on the rear of your computer Connector Description Component locations Locating components System board part locations Locating parts on the system board Drive bay locations Locating internal drives Machine type and model label Machine type and model label Using Windows shortcut keys Using your computerFrequently asked questions Using the keyboard About your computer audio Using a fingerprint readerUsing the wheel mouse Adjusting audio Adding the volume icon to the taskbar Setting the volume from the desktopSetting the volume from Control Panel Using CDs and DVDs Recording a CD or DVD Playing a CD or DVD Comfort Accessibility and comfortYou and your computer Arranging your workspace Electrical outlets and cable lengths Glare and lightingAir circulation Moving your computer to another country or region Voltage-selection switchReplacement power cords Register your computer with Lenovo ThinkCentre User Guide Security Security features Locking the computer cover Installing a padlock Attaching an integrated cable lock Using passwordsBios passwords Protecting data against viruses Windows passwordsConfiguring the fingerprint reader Using and understanding firewalls Security ThinkCentre User Guide Handling static-sensitive devices Installing or replacing hardwareInstalling or replacing hardware Installing external options Removing the computer cover Removing the computer cover What to do next Removing and reinstalling the front bezelInstalling or replacing a PCI card Opening the PCI card latch Removing a PCI card Installing a PCI card Installing or replacing a memory module Removing a memory module Installing a memory module Installing or replacing the optical drive Removing the optical drive Installing the optical drive Installing or replacing the card reader Removing the card reader retainer Installing the card reader Installing the card reader Removing the card reader Replacing the card reader Replacing the battery Install a new battery Replacing the power supply assembly Removing the screws for the power supply assembly Replacing the heat sink and fan assembly Removing the heat sink and fan assembly Replacing the microprocessor Reinstalling the heat sink and fan assembly Accessing the microprocessor Replacing the primary hard disk drive Removing the primary hard disk drive Replacing the secondary hard disk drive Installing the primary hard disk drive Removing the secondary hard disk drive Installing the secondary hard disk drive Replacing the front fan assembly Removing the front fan assembly Replacing the rear fan Installing the front fan assembly Removing the rear fan Installing the rear fan Replacing the front audio and USB assembly Replacing the internal speaker Removing the old internal speaker Replacing the keyboard or mouse Installing a new internal speaker Connecting the USB keyboard or mouse Completing the parts replacement Obtaining device drivers Reinstalling the computer cover Creating recovery media Recovery informationCreating and using recovery media Performing a backup operation Using recovery mediaPerforming backup and recovery operations Click the Restore your system from a backup icon Performing a recovery operationUsing the Rescue and Recovery workspace Creating a rescue medium Creating and using a rescue mediumUsing a rescue medium Reinstalling preinstalled device drivers Reinstalling preinstalled applications and device driversReinstalling preinstalled applications Solving recovery problems Reinstalling software programsReinstalling device drivers Recovery information ThinkCentre User Guide Viewing and changing settings Using the Setup Utility programStarting the Setup Utility program Hard Disk Password Password considerationsPower-On Password Administrator Password Enabling or disabling a device Erasing lost or forgotten passwords clearing Cmos Selecting or changing the startup device sequence Enabling ErP compliance modeSelecting a startup device Selecting a temporary startup device Exiting the Setup Utility program ThinkCentre User Guide Updating system programs Using system programsUpdating flashing the Bios from a disc Click Downloads and drivers Updating flashing the Bios from your operating systemRecovering from a POST/BIOS update failure Updating your operating system Preventing problemsKeeping your computer current Getting the latest device drivers for your computer Basics Using System Update Optical mouse Cleaning your computerComputer Keyboard Moving your computer Good maintenance practicesCleaning a glass-screen surface Basic troubleshooting Troubleshooting and diagnostics Troubleshooting Troubleshooting procedure No audio in Windows Audio problems No audio in DOS applications or games CD problemsSound comes from one external speaker only Black screen instead of DVD video DVD problemsCD or DVD does not work Invalid disc or no disc found message DVD movie will not playNo audio or intermittent audio while playing DVD movie Playback is very slow or choppy All or some keys on the keyboard do not work Intermittent problemsKeyboard, mouse, or pointing device problems Pointer on the screen does not move smoothly with the mouse Monitor problemsWireless keyboard does not work Mouse or pointing device does not work Image appears to be flickering Wrong characters appear on the screen Image is discolored Networking problemsEthernet problems Adapter stops working for no apparent reason Wake on LAN feature is not workingYour computer cannot connect to the network Click Start Control Panel Click Hardware and Sound Bluetooth problems Wireless LAN problemWireless WAN problem An option that previously worked does not work now Option problemsAn option that was just installed does not work Sound does not come from the Bluetooth headphone Click Start Computer Performance and lockup problemsClick Disk Cleanup Insufficient free hard disk drive space Insufficient memory Printer problemsExcessive number of fragmented files Software does not work as expected Serial port problemsSoftware problems Diagnostic programs USB problems Lenovo ThinkVantage Toolbox Lenovo Solution Center PC-Doctor for DOS Creating a diagnostic discRunning the diagnostic program from a diagnostic disc ThinkCentre User Guide Getting information, help, and service Lenovo Support Web site Help and serviceUsing the documentation and diagnostic program Calling for service Purchasing additional services Using other services ThinkCentre User Guide 107 Appendix A. Notices Trademarks Electronic emissions notices Appendix B. Regulatory informationExport classification notice Television output notice Industry Canada Class B emission compliance statement Additional regulatory information ThinkCentre User Guide 113 Appendix C. Weee and recycling informationImportant Weee Information Recycling information Recycling information for Brazil Battery recycling information for Taiwan Battery recycling information for the European Union ThinkCentre User Guide 117 China RoHS Turkish RoHSUkraine RoHS India RoHS 119 Index Memory module 121 ThinkCentre User Guide Page 1P0B07068