Lenovo 804 manual Locating components, Locating parts on the system board

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Connector	Description
Microphone connector	Used to attach a microphone to your computer when you want to record sound or
	if you use speech-recognition software.
Serial port	Used to attach an external modem, a serial printer, or other devices that use a
	9-pin serial port.
USB connector	Used to attach a device that uses a USB connector, such as a USB keyboard,
	a USB mouse, a USB scanner, or a USB printer. If the USB connectors on your
	computer are not enough for you to connect all your USB devices, you can
	purchase a USB hub, which you can use to connect additional USB devices.
VGA monitor connector	Used to attach a VGA monitor or other devices that use a VGA monitor connector.

Locating components

Figure 3 “Component locations” on page 8 shows the locations of the various components in your computer. To remove the computer cover and gain access to the inside of the computer, see “Removing the computer cover” on page 12.

Figure 3. Component locations

1Heat sink and fan assembly

2Power supply assembly

3Memory modules (2)

4Optical drive

5Front USB and audio assembly

6Front bezel

7Front fan assembly

8Hard disk drive

9PCI card (available in some models)

10Heat sink fan duct

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.

8ThinkCentre User Guide

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Contents ThinkCentre User Guide Second Edition September Copyright Lenovo 2010 Contents Index Important safety information Iv ThinkCentre User Guide Features Product overviewSecurity features System management featuresInput/Output I/O features ConnectivityPreinstalled operating system SpecificationsPreinstalled software programs Lenovo ThinkVantage Tools Software overviewSoftware provided with your Windows operating system ThinkVantage Productivity CenterPassword Manager Product RecoveryThinkVantage Rescue and Recovery ThinkVantage Client Security SolutionLocations Adobe ReaderLocating connectors and parts on the rear of your computer ConnectorLocating components Locating parts on the system boardLocating internal drives System board part locationsDrive bay locations Installing external options Installing or replacing hardwareInstalling or replacing hardware Handling static-sensitive devicesRemoving the computer cover Removing the computer coverRemoving and reinstalling the front bezel Removing the front bezelAccessing the system board components and drives Reinstalling the front bezelInstalling or replacing a PCI card Pivoting the drive bay assembly upwardThinkCentre User Guide Removing the PCI card Installing or replacing a memory module What to do nextRemoving the memory module Replacing the battery Installing the memory moduleReplacing the heat sink and fan assembly Removing the old batteryRemoving the heat sink fan duct Screws that secure the heat sink and fan assembly Installing the heat sink fan duct Replacing the microprocessorAccessing the microprocessor Removing the microprocessor Replacing the power supply assembly Removing the heat sink fan duct 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 Installing the optical drive Replacing the hard disk drivePivoting the drive bay assembly Removing the hard disk drive Replacing the front fan assembly Installing the hard disk driveRemoving the front fan assembly Installing the front fan assembly Replacing the USB keyboard or mouseCompleting the parts replacement Connecting the USB keyboard or mouseBasic security features Obtaining device driversInstalling an integrated cable lock Integrated cable lockPadlock Password protectionErasing a lost or forgotten password clearing Cmos ThinkCentre User Guide Creating recovery media Recovery informationCreating and using recovery media On the Rescue and Recovery menu, click Restore your system Using recovery mediaPerforming backup and recovery operations Click the Restore your system from a backup icon Performing a backup operationPerforming a recovery operation Using the Rescue and Recovery workspace Creating and using a rescue mediumUsing a rescue medium Creating a rescue mediumInstalling or reinstalling device drivers Solving recovery problemsViewing or changing settings Using the Setup Utility programStarting the Setup Utility program Using passwordsAdministrator password Password considerationsPower-on password Setting, changing, or deleting a passwordViewing or changing the startup device sequence Selecting a startup deviceSelecting a temporary startup device Exiting the Setup Utility program 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 and Bios update failure Updating system programs ThinkCentre User Guide Troubleshooting and diagnostic programs Basic troubleshootingLenovo ThinkVantage Toolbox Diagnostic programsPC-Doctor for Rescue and Recovery Cleaning an optical mouse PC-Doctor for DOSThinkCentre User Guide Online Books folder Getting information, help, and serviceInformation resources Lenovo ThinkVantage ToolsThinkVantage Productivity Center Access HelpSafety and warranty Lenovo WelcomeLenovo Support Web site Help and serviceUsing the documentation and diagnostic programs Calling for service Using other servicesPurchasing additional services ThinkCentre User Guide Appendix A. Notices Television output notice European conformance CE mark TrademarksAppendix A. Notices ThinkCentre User Guide Index CRUKeyboard, replacing Lenovo Customer Support Center Set Power-On Password ThinkCentre User Guide Page 71Y8530