Lenovo 3039, 3026, 3269, 5548, 5536 Locating parts on the system board, System board part locations

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1

2

3

4

Hard disk drive (installed in some models)

Heat sink

Internal speaker (installed in some models)

System fan assembly

5

6

7

Optical drive

Memory module

Power supply assembly

Locating parts on the system board

Figure 4 “System board part locations” on page 9 shows the locations of the parts on the system board.

Figure 4. System board part locations

1PCI card slot

2PCI Express x16 graphics card slot

3Internal speaker connector

4Cover presence switch connector (Intrusion switch connector)

5Battery

6Thermal sensor connector

7Microprocessor fan connector

8Microprocessor

94-pin power connector

10Memory slot 2

11Memory slot 1

12Memory slot 4

13Memory slot 3

14Front panel connector

15PS/2 keyboard and mouse connector

16Serial (COM) connector

17Front audio connector

1824-pin power connector

19Power fan connector

20SATA connectors (2)

21eSATA connector

22Front USB connectors (2)

23Clear CMOS (Complementary Metal Oxide Semiconductor) /Recovery jumper

Chapter 1. Product overview 9

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Contents ThinkCentre User Guide Page ThinkCentre User Guide First Edition October Copyright Lenovo Contents Appendix A. Notices Important safety information Viii ThinkCentre User Guide Product overview FeaturesPower supply Preinstalled software programs SpecificationsSoftware provided by Lenovo Software overviewThinkVantage Productivity Center Antivirus software Locations Locating connectors on the front of your computerAdobe Reader Connector Description Locating connectors on the rear of your computerComponent locations Locating componentsSystem board part locations Locating parts on the system boardDrive bay locations Locating internal drivesInstalling or replacing hardware Installing or replacing hardwareInstalling external options Handling static-sensitive devicesOpening the computer cover Accessing the system board components and drivesPivoting the optical drive bay assembly Installing or replacing a memory moduleOpening the retaining clips What to do next Installing or replacing a PCI cardRemoving a PCI card Installing the PCI card Replacing the batteryReplacing the hard disk drive Removing the old batteryRemoving the hard disk drive Replacing the optical drive Installing the hard disk driveRemoving the old optical drive Installing a new optical drive Replacing the power supply assemblyRemoving the retaining screws for the power supply assembly Replacing the heat sink Removing the power supply assemblyRemoving the heat sink Replacing the front audio and USB assembly Removing the front bezel Replacing the system fanRemoving the system fan Replacing the internal speakerRemoving the front bezel Removing the internal speaker Replacing the keyboard or mouse Installing the new internal speakerConnecting a new keyboard or mouse Completing the parts replacementIntegrated cable lock Installing security featuresErasing lost or forgotten passwords clearing Cmos Password protectionCreating recovery media Recovery informationCreating and using recovery media Performing a backup operation Using recovery mediaPerforming backup and recovery operations Using the Rescue and Recovery workspace Performing a recovery operationCreating a rescue medium Creating and using a rescue mediumInstalling or reinstalling device drivers Using a rescue mediumSolving recovery problems Starting the Setup Utility program Using the Setup UtilityViewing and changing settings Using passwordsAdministrator Password Power-On PasswordHard Disk Password Setting, changing, and deleting a passwordSelecting a startup device Exiting from the Setup Utility programSelecting a temporary startup device Selecting or changing the startup device sequenceThinkCentre User Guide Updating system programs Using system programsUpdating flashing the Bios from a disc Recovering from a POST/BIOS update failure Updating flashing the Bios from your operating systemBasic troubleshooting Troubleshooting and diagnosticsLenovo ThinkVantage Toolbox Diagnostic programsPC-Doctor for DOS PC-Doctor for Rescue and RecoveryCleaning an optical mouse Information resources Getting information, help, and serviceOnline Books folder Lenovo ThinkVantage ToolsLenovo Welcome Access HelpSafety and Warranty Calling for service Help and serviceUsing the documentation and diagnostic programs Purchasing additional services Using other servicesAppendix A. Notices European conformance CE mark Trademarks Television output noticeCRU IndexRescue and Recovery workspace Page ThinkCentre User Guide Page 71Y7175