Locating components | Lenovo 8142, 8426, 8421, 8145, 8420, 8141, 8095

Locating components

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

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

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 1. Installing options 11

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Lenovo 8142, 8426, 8421, 8145, 8420, 8141, 8095, 8096 manual Locating components, Identifying parts on the system board

Contents

User Guide Types 8095, 8096, 8141 Types 8145, 8420, 8421 Page User Guide Types 8095, 8096, 8141 Types 8145, 8420, 8421 Page Contents Iv User Guide Conditions that require immediate action Important safety information Service General safety guidelines Extension cords and related devices Power cords and power adapters Batteries Plugs and outlets Heat and product ventilation CD and DVD drive safety Additional safety information Lithium battery noticeTo connect To disconnect Laser compliance statement Modem safety information Power supply statement Information resources Overview Xiv User Guide Features Installing options Memory Operating systems, preinstalled varies by model type Specifications Available options 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 Obtaining device drivers Connector Description Removing the cover Identifying parts on the system board Locating components Installing memory Installing options What to do next Installing adapters What to do next Drive specifications Installing internal drives Installing a drive User Guide Connecting the first optical drive Connecting a serial ATA hard disk drive Installing security features Password protection Changing the batteryPadlock loop User Guide Replacing the cover and connecting the cables Erasing a lost or forgotten password clearing Cmos User Guide Using passwords Using the Setup Utility programStarting the Setup Utility program Viewing and changing settings IDE Drive Master Password User passwordAdministrator password IDE Drive User Password Setting, changing, and deleting a password Using Security Profile by DeviceSelecting a startup device Exiting from the Setup Utility program Selecting a temporary startup deviceChanging the startup sequence System programs Updating flashing Bios from a disketteUpdating flashing Bios from your operating system Appendix A. Updating system programs Click Continue Click Downloads and drivers Recovering from a POST/BIOS update failure Appendix B. Cleaning the mouse Cleaning an optical mouseCleaning a mouse with a ball User Guide Basic AT commands Appendix C. Manual modem commands Internal speaker on until carrier detected Low speaker volumeSet Pulse dial as default Set Tone Dial as default Extended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 2 commands Fax Class 1 commands Voice commands Appendix C. Manual modem commands User Guide Appendix D. Notices Trademarks Television output notice Index Page Page Part Number 19R0462