Lenovo 154, 7548, 104, 7539 manual Locating connectors and parts on the rear of your computer

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1

2

3

4

Optical drive eject/close button

Power switch

Hard disk drive activity indicator

Power indicator

5

6

7

8

USB connector

Microphone connector

Headphone connector

USB connector

Locating connectors and parts on the rear of your computer

Figure 2 “Rear connector and part locations” on page 7 shows the locations of the connectors and parts on the rear of your computer. Some connectors on the rear of your computer are color-coded to help you determine where to connect the cables on your computer.

Figure 2. Rear connector and part locations

1Power cord connector

2PS/2 mouse connector

3PS/2 keyboard connector

4DVI monitor connector

5VGA monitor connector

6USB connectors (4)

7Microphone connector

15Serial port

8Audio line-out connector

9Audio line-in connector

10PCI Express x16 graphics card slot

11PCI Express x1 card slot

12PCI card slots (2)

13Parallel port (available in some models)

14Ethernet connector

Chapter 1. Product overview 7

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Contents

ThinkCentre User Guide Page ThinkCentre User Guide First Edition November Copyright Lenovo Contents Appendix A. Notices Important safety information Vi ThinkCentre User Guide Product overview FeaturesConnectivity Security features SpecificationsSoftware provided with your Windows operating system Software overviewLenovo ThinkVantage Tools Lenovo ThinkVantage Toolbox LocationsRear connector and part locations Locating connectors and parts on the rear of your computerLocating components Connector DescriptionComponent locations Locating parts on the system boardSystem board part locations Locating internal drivesDrive bay locations ThinkCentre User Guide Handling static-sensitive devices Installing or replacing hardwareInstalling or replacing hardware Installing external optionsRemoving the computer cover Removing the computer coverRemoving the front bezel Removing and reinstalling the front bezelReinstalling the front bezel Accessing the system board components and drivesPivoting the drive bay assembly upward Installing or replacing a PCI cardThinkCentre User Guide Removing the PCI card What to do next Installing or replacing a memory moduleRemoving the memory module Installing the memory module Replacing the batteryRemoving the old battery Replacing the heat sink and fan assemblyRemoving the heat sink fan duct Screws that secure the heat sink and fan assembly Replacing the microprocessor Installing the heat sink fan ductAccessing the microprocessor Removing the microprocessor Replacing the power supply assemblyInstalling or replacing hardware Removing the power supply assembly Installing the power supply assembly Replacing the optical drive Removing the optical drive screws Slide the optical drive out of the front of the computer Replacing the hard disk drive Installing the optical drivePivoting the drive bay assembly Removing the hard disk drive Replacing the card reader Installing the hard disk driveRemoving the card reader Replacing the front fan assemblyRemoving the front fan assembly Replacing the keyboard Installing the front fan assemblyReplacing the mouse Keyboard connectorsMouse connectors Completing the parts replacementReinstalling the computer cover Obtaining device drivers Basic security featuresIntegrated cable lock Installing an integrated cable lockPassword protection Erasing a lost or forgotten password clearing CmosPadlock Installing or replacing hardware ThinkCentre User Guide Recovery information Creating and using recovery mediaCreating recovery media Using recovery media Performing backup and recovery operationsPerforming a backup operation Using the Rescue and Recovery workspace Performing a recovery operationCreating and using a rescue medium Using a rescue mediumCreating a rescue medium Solving recovery problems Installing or reinstalling device driversThinkCentre User Guide Using passwords Using the Setup Utility programStarting the Setup Utility program Viewing or changing settingsSetting, changing, or deleting a password Password considerationsPower-on password Administrator passwordSelecting a startup device Selecting a temporary startup deviceViewing or changing the startup device sequence Exiting the Setup Utility program Using system programs Updating flashing the Bios from a discUpdating system programs Recovering from a Post and Bios update failure Updating flashing the Bios from your operating systemUpdating system programs ThinkCentre User Guide Basic troubleshooting Troubleshooting and diagnostic programsDiagnostic programs Lenovo ThinkVantage ToolboxPC-Doctor for DOS Running the diagnostic program from the diagnostic disc Cleaning an optical mouseThinkCentre User Guide Lenovo ThinkVantage Tools Getting information, help, and serviceInformation resources Online Books folderLenovo Welcome Access HelpSafety and warranty Help and serviceCalling for service Using the documentation and diagnostic programsPurchasing additional services Using other servicesAppendix A. Notices European conformance CE mark Trademarks Television output noticeCRU IndexKeyboard replacing Lenovo Customer Support Center Solving recovery problems Starting the Setup Utility program ThinkCentre User Guide Page 0A22638