Lenovo 3000 J Series manual Locating components, Identifying parts on the system board

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Locating components

The following illustration will help you locate the various components in your computer.

1	Microprocessor and heat sink	5	PCI adapter connectors
2	Memory modules	6	PCI adapter
3	PCI Express x1 adapter connector	7	Power supply assembly
	(some models)
4	PCI Express x16 graphics adapter
	connector (some models)

Identifying parts on the system board

The system board (sometimes called the planar or motherboard) is the main circuit board in your computer. It provides basic computer functions and supports a variety of devices that are factory-installed or that you can install later.

Chapter 3. Installing options 21

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Contents User Guide Lenovo 3000 J Series Page Lenovo 3000 J Series Page Contents Getting information, help Conditions that require immediate action Important safety informationService and upgrades General safety guidelinesStatic electricity prevention Power cords and power adaptersViii User Guide Voltage-selection switch Extension cords and related devicesPlugs and outlets External devices BatteriesHeat and product ventilation Operating environment Electrical current safety information Lithium battery noticeTo connect To disconnect Laser compliance statement Modem safety informationAdditional safety information Power supply statementData safety Cleaning and maintenanceIntroduction Xvi User Guide Arranging your workspace ComfortGlare and lighting Electrical outlets and cable lengths Air circulationConnecting your computer Setting up your computerUser Guide Setting up your computer User Guide 1394 User Guide Turning on power Finishing the software installationCompleting important tasks Shutting down the computer Installing other operating systemsUpdating your operating system Updating your antivirus softwareFeatures Installing optionsMemory Input/output features Available options Specifications Tools requiredHandling static-sensitive devices Installing external options Locating the connectors on the front of your computer Locating the connectors on the rear of your computer Connector Description Obtaining device drivers Removing the cover Identifying parts on the system board Locating componentsUser Guide Installing options What to do next Installing memoryInstalling adapters Secure the adapter with the screw as shown Drive specifications Installing internal drivesUser Guide Installing a drive User Guide Installing options Connecting the first CD drive or DVD drive Connecting a serial ATA hard disk drive Installing security featuresPassword protection Changing the batteryPadlock loop Installing options Erasing a lost or forgotten password clearing Cmos Replacing the cover and connecting the cables User Guide Creating and using the Product Recovery disc Recovering softwarePerforming backup and recovery operations Using the Rescue and Recovery workspace Creating and using rescue media To create rescue media, do the following Creating and using a Recovery Repair disketteRecovering or installing device drivers Solving recovery problems Setting a rescue device in the startup sequenceUser Guide Using passwords Using the Setup UtilityStarting the Setup Utility program Viewing and changing settingsSetting, changing, and deleting a password Password considerationsUser Password Administrator PasswordUsing Security Profile by Device Selecting a startup deviceSelecting a temporary startup device Advanced settings Exiting from the Setup Utility programChanging the startup device sequence Using system programs Updating flashing Bios from a disketteUpdating system programs User Guide Troubleshooting and diagnostics Basic troubleshootingSymptom Action Diagnostic programs PC-Doctor for DOS PC-Doctor for WindowsCreating diagnostic diskettes Cleaning the mouse PC-Doctor for Windows PEOptical mouse Non-optical mouse Troubleshooting and diagnostics User Guide Lenovo Care Getting information, help, and serviceInformation resources Online Books folderWarranty and safety Access HelpHelp and service Using the documentation and diagnostic programsCalling for service Purchasing additional services Using other servicesBasic AT commands Appendix A. Manual modem commandsInternal speaker on until carrier detected Low speaker volumeSet Pulse dial as default Set Tone Dial as defaultExtended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 2 commands Fax Class 1 commandsVoice commands Appendix A. Manual modem commands User Guide Appendix B. Notices Trademarks Television output noticeIndex 14, 22, 23 Page Part Number