Manuals / Lenovo / Computer Equipment / Personal Computer

Lenovo 2929, 2988, 2992E5U, 2982, 2993, 2996, 3393, 3395, 3306, 3224 Power connectors on the system board

Models: 2756 2800 2934 2945 2941 2932 2929 2961 3183 3218 3181 3227 3198 3209 3207 3185 3214 3187 3202 3224 3306 3395 3393 2996 2993 2982 2992E5U 2988

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6.Pivot the optical drive upward and disconnect the power supply assembly cables from all drives and from power connectors 1 , 2 and 3 on the system board.

Figure 49. Power connectors on the system board

Note: You might also need to release the power supply assembly cables from some cable clips or ties that secure the cables to the chassis. Ensure that you note the cable routing before disconnecting the cables.

Chapter 5. Installing or replacing hardware 65

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Lenovo 2929, 2988, 2992E5U, 2982, 2993, 2996, 3393, 3395, 3306, 3224, 3202, 3187, 3214, 3185, 3207 Power connectors on the system board

Contents

ThinkCentre User Guide Second Edition September Copyright Lenovo Contents Recovery information Appendix A. Notices 129 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 features Power supply Input/Output I/O featuresSecurity features Preinstalled software programs Environment Specifications Lenovo programs Accessing Lenovo programs on the Windows 7 operating systemAccessing Lenovo programs from Control Panel Communications Utility Accessing Lenovo programs on the Windows 8 operating systemAn introduction to Lenovo programs Password Manager Lenovo Solution CenterPower Manager Recovery Media System Update Rescue and RecoveryLocations SimpleTap Front connector, control, and indicator locations Connector Description Locating connectors on the rear of your computer Connector Description Locating parts on the system board Locating components System board part locations System board part locations Drive bay locations Locating internal drives Machine type and model label Machine type and model label Frequently asked questions Using your computerAccessing Control Panel on the Windows 8 operating system Where can I find help about the Windows operating system? Using Windows shortcut keys Using the keyboardUsing the blue ThinkVantage button Using a fingerprint reader Adjusting audio Using the wheel mouseSetting the volume from the desktop Adding the volume icon to the taskbar Using CDs and DVDs Setting the volume from Control PanelSound topic, click Adjust system volume Handling and storing CD and DVD media Recording a CD or DVD Playing a CD or DVD ThinkCentre User Guide You and your computer Accessibility and comfortArranging your workspace Comfort Electrical outlets and cable lengths Glare and lightingAir circulation Moving your computer to another country or region Voltage-selection switchRegistering your computer Replacement power cords Security Security features Attaching an integrated cable lock Using passwordsBios passwords Configuring the fingerprint reader Windows passwordsUsing and understanding firewalls Protecting data against viruses ThinkCentre User Guide Installing or replacing hardware Installing or replacing hardwareInstalling external options Handling static-sensitive devices Opening the computer cover Removing and reinstalling the front bezel Removing the front bezel What to do next Accessing the system board components and drives Installing or replacing a memory module Removing a memory module Installing a memory module Installing or replacing a PCI card Removing a PCI card Installing the card reader Installing or replacing the card reader Installing the card reader Installing the screw that secures the card reader Removing the screw that secures the card reader Replacing the card reader Installing the card reader Installing the mSATA solid state drive Installing or replacing the mSATA solid state drive Installing or replacing hardware Installing the mSATA solid state drive storage converter Replacing the mSATA solid state drive Removing the mSATA solid state drive storage converter Removing the mSATA solid state drive Installing the mSATA solid state drive storage converter Installing the screw that secures the storage converter Replacing the battery Removing the old battery Installing the solid state disk Installing the solid state disk into the adapter Removing the hard disk drive Replacing the hard disk drive Removing the hard disk drive from the bracket Replacing the optical drive Installing the hard disk drive Pivoting the optical drive bay Removing the old optical drive Installing a new optical drive Replacing the heat sink and fan assembly Screws that secure the heat sink and fan assembly Removing the heat sink fan duct Installing the heat sink fan duct Replacing the power supply assembly Installing or replacing hardware Removing the heat sink fan duct Power connectors on the system board Removing the power supply assembly Replacing the microprocessor Accessing the microprocessor Installing the microprocessor Replacing the cover presence switch Removing the cover presence switch Replacing the internal speaker Installing the new cover presence switch Removing the internal speaker Installing the new internal speaker Replacing the front audio and USB assembly Removing the front audio and USB assembly Removing the WiFi adapter card Replacing the WiFi units Removing the WiFi adapter card Removing the WiFi card module Removing the screws that secure the WiFi card module Installing the WiFi units Installing the WiFi card module Installing the rear WiFi antenna Installing or removing the rear WiFi antenna Installing the rear WiFi antenna Removing the rear WiFi antenna Installing the front WiFi antenna Installing or removing the front WiFi antenna Peeling off the paper that protects the sticker Removing the front WiFi antenna Removing the front WiFi antenna Replacing the keyboard or mouse Completing the parts replacement Obtaining device drivers Creating and using recovery media Recovery informationRecovery information for the Windows 7 operating system Creating recovery media Performing backup and recovery operationsUsing recovery media Performing a backup operation Click the Restore your system from a backup icon Using the Rescue and Recovery workspacePerforming a recovery operation 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 Refreshing your computer Recovery information for the Windows 8 operating system ThinkCentre User Guide Viewing and changing settings Using the Setup Utility programStarting the Setup Utility program Power-On Password Password considerationsAdministrator Password Hard Disk Password Enabling or disabling a device Erasing lost or forgotten passwords clearing Cmos Selecting a startup device Enabling ErP compliance modeSelecting a temporary startup device Selecting or changing the startup device sequence ICE thermal alert ICE performance modeDisabled Exiting the Setup Utility program Updating flashing the Bios from a disc Using system programsUpdating system programs 101 Click Download Drivers & Software Click Use Quick Path Updating flashing the Bios from your operating systemRecovering from a POST/BIOS update failure Keeping your computer current Preventing problemsGetting the latest device drivers for your computer Updating your operating system Basics Using System Update Computer Cleaning your computerKeyboard Optical mouse Moving your computer Good maintenance practicesCleaning a glass-screen surface 107 Troubleshooting and diagnosticsBasic troubleshooting 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 No audio or intermittent audio while playing DVD movie DVD movie will not playPlayback is very slow or choppy Invalid disc or no disc found message All or some keys on the keyboard do not work Intermittent problemsKeyboard, mouse, or pointing device problems Mouse or pointing device does not work Wireless keyboard does not workPointer on the screen does not move smoothly with the mouse Fingerprint reader does not work Image appears to be flickering Monitor problemsWrong characters appear on the screen Image is discolored Networking problems Your computer cannot connect to the network Ethernet problemsClick Start Control Panel Click Hardware and Sound Adapter stops working for no apparent reason Wake on LAN feature is not working Wireless LAN problemWireless WAN problem Bluetooth problems Option problemsAn option that was just installed does not work Sound does not come from the Bluetooth headphone An option that previously worked does not work now Performance and lockup problemsInsufficient free hard disk drive space Click Start Computer Excessive number of fragmented files Serial port problems Printer problemsInsufficient memory Click Optimize Software does not work as expected Software problems Lenovo Solution Center USB problems Getting information, help, and service Using the documentation and diagnostic program Help and serviceCalling for service Lenovo Support Web site Purchasing additional services Using other services ThinkCentre User Guide 129 Appendix A. Notices Trademarks Export classification notice Appendix B. Regulatory informationElectronic emissions notices Federal Communications Commission Declaration of Conformity ThinkCentre User Guide Additional regulatory information ThinkCentre User Guide Important Weee information Appendix C. Weee and recycling informationRecycling information 135 Recycling information for Brazil Battery recycling information for Taiwan Battery recycling information for the European Union ThinkCentre User Guide 139 China RoHS Turkish RoHSUkraine RoHS India RoHS 141 Appendix E. Energy Star model information ThinkCentre User Guide 143 Index Setting, changing, deleting 145 ThinkCentre User Guide