Opening the cover | Lenovo 8105, 8121, 8119, 8120, 8107, 8109, 8108, 8104

Opening the cover

Important:

Read “Important safety information” on page v and “Handling static-sensitive devices” on page 6 before opening the computer cover.

To open the computer cover:

1.Remove any media (DVDs, CDs, or tapes) from the drives, shut down your operating system, and turn off all attached devices and the computer.

2.Unplug all power cords from electrical outlets.

3.Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer.

4.Remove the optional floor stand, if attached.

5.Remove any locking devices such as a cable lock that secure the cover.

6.Press the buttons on the sides of the computer and pivot the cover upward to open the computer as shown.

10User Guide

Image 26

Lenovo 8105, 8121, 8119, 8120, 8107, 8109, 8108, 8104, 8118, 8117, 8106 manual Opening the cover

Contents

Page Page Page Page Contents Iv User Guide Important safety information Conditions that require immediate action General safety guidelines Service Power cords and power adapters Batteries Extension cords and related devicesPlugs and outlets CD and DVD drive safety Heat and product ventilation To connect To disconnect Additional safety informationLithium battery notice Modem safety information Laser compliance statement Power supply statement Overview Information resources Xiv User Guide Installing options Features Video subsystem Operating systems, preinstalled varies by model type Specifications Supported operating positions Available options Handling 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 Opening the cover Locating components Identifying parts on the system board Installing memory Installing options Installing a PCI adapter What to do next What to do next Installing an optical drive Security features Integrated cable lock Password protection Changing the battery User Guide Erasing a lost or forgotten password clearing Cmos Closing the cover and connecting the cables Viewing and changing settings Using the Setup Utility programStarting the Setup Utility program Exiting from the Setup Utility program Administrator Password Password considerationsUser Password IDE Drive User Password Resetting the hard disk drive and power-on password IDE Drive Master PasswordSetting, changing, and deleting a password Selecting a startup device Using Security Profile by DeviceUsing IDE Drives Setup Parallel ATA Selecting a temporary startup device Changing the startup sequence User Guide System programs Updating flashing Bios from a diskette or CD-ROMAppendix A. Updating system programs Updating flashing Bios from your operating system Recovering from a POST/BIOS update failure Cleaning a mouse with a ball Appendix B. Cleaning the mouseCleaning an optical mouse User Guide Appendix C. Manual modem commands Basic AT commands Set Tone Dial as default Low speaker volumeSet Pulse dial as default Internal speaker on until carrier detected Extended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 1 commands Fax Class 2 commands Voice commands Appendix C. Manual modem commands User Guide Tier 2 CRUs Appendix D. Customer replaceable unit CRU parts listTier 1 CRUs User Guide Appendix E. Notices Television output notice Trademarks Bios IndexPage Page Part Number 39J8083