Lenovo 5548 用户手册

Contents

Important safety information . . . . .

vii

Chapter 1. Product overview . . . . . . 1

Features . . . . . . . . . . . . . . . . . .

Specifications . . . . . . . . . . . . . . . .

Software overview . . . . . . . . . . . . . .

Software provided by Lenovo . . . . . . . .

Adobe Reader . . . . . . . . . . . . . .

Antivirus software. . . . . . . . . . . . .

Locations. . . . . . . . . . . . . . . . . .

Locating connectors on the front of your
computer . . . . . . . . . . . . . . . .

Locating connectors on the rear of your
computer . . . . . . . . . . . . . . . .

Locating components . . . . . . . . . . .

Locating parts on the system board

. . . . .

Locating internal drives . . . . . . . . .

Chapter 2. Installing or replacing
hardware . . . . . . . . . . . . . . .

Handling static-sensitive devices . . . . . . .

Installing or replacing hardware . . . . . . . .

Installing external options

. . . . . . . .

Opening the computer cover . . . . . . .

Accessing the system board components and
drives . . . . . . . . . . . . . . . .

Installing or replacing a memory module . . .

Installing or replacing a PCI card . . . . . .

Replacing the battery . . . . . . . . . .

Replacing the hard disk drive . . . . . . .

Replacing the optical drive . . . . . . . .

Replacing the power supply assembly

. . .

Replacing the heat sink . . . . . . . . .

Replacing the front audio and USB
assembly . . . . . . . . . . . . . . .

Replacing the system fan. . . . . . . . .

Replacing the internal speaker. . . . . . .

Replacing the keyboard or mouse . . . . .

Completing the parts replacement . . . . .

Installing security features . . . . . . . . . .

Integrated cable lock . . . . . . . . . .

Password protection

. . . . . . . . . .

Erasing lost or forgotten passwords (clearing
CMOS) . . . . . . . . . . . . . . . .

Chapter 3. Recovery information. . .

Creating and using recovery media

. . . . . .

Creating recovery media . . . . . . . . .

Using recovery media . . . . . . . . . .

Performing backup and recovery operations . . .

Performing a backup operation . . . . . .

Performing a recovery operation . . . . . .

Using the Rescue and Recovery workspace . . .

Creating and using a rescue medium . . . . . .

Creating a rescue medium . . . . . . . .

Using a rescue medium . . . . . . . . .

Installing or reinstalling device drivers

. . . . .

Solving recovery problems . . . . . . . . . .

Chapter 4. Using the Setup Utility . .

Starting the Setup Utility program . . . . . . .

Viewing and changing settings . . . . . . . .

Using passwords. . . . . . . . . . . . . .

Password considerations . . . . . . . . .

Power-On Password

. . . . . . . . . .

Administrator Password . . . . . . . . .

Hard Disk Password. . . . . . . . . . .

Setting, changing, and deleting a password .

Enabling or disabling a device

. . . . . . . .

Selecting a startup device . . . . . . . . . .

Selecting a temporary startup device . . . .

Selecting or changing the startup device
sequence . . . . . . . . . . . . . . .

Exiting from the Setup Utility program . . . . .

Chapter 5. Updating system
programs . . . . . . . . . . . . . . .

Using system programs . . . . . . . . . . .

Updating (flashing) the BIOS from a disc . . . .

Updating (flashing) the BIOS from your operating
system . . . . . . . . . . . . . . . . . .

Recovering from a POST/BIOS update failure . .

Chapter 6. Troubleshooting and
diagnostics . . . . . . . . . . . . . .

Basic troubleshooting . . . . . . . . . . . .

Diagnostic programs . . . . . . . . . . . .

Lenovo ThinkVantage Toolbox . . . . . . .

PC-Doctor for Rescue and Recovery . . . .

PC-Doctor for DOS . . . . . . . . . . .

Cleaning an optical mouse . . . . . . . . . .

Chapter 7. Getting information, help,
and service . . . . . . . . . . . . . .

Information resources . . . . . . . . . . . .