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Replacing the internal speakers . . . . . . 55
Replacing the thermal sensor . . . . . . . 56
Replacing the integrated camera. . . . . . 58
Replacing the Wi-Fi card . . . . . . . . . 60
Replacing the ambient light sensor . . . . . 61
Replacing the card reader . . . . . . . . 62
Replacing the ExpressCard . . . . . . . . 63
Replacing the heat sink and fan assembly for
GPU . . . . . . . . . . . . . . . . . 64
Replacing the rear PS/2 connectors and serial
port assembly . . . . . . . . . . . . . 66
Replacing the mouse . . . . . . . . . . 67
Replacing the keyboard . . . . . . . . . 70
Completing the parts replacement . . . . . 71
Chapter 6. Recovery information . . . 73
Recovery information for the Windows 7 operating
system. . . . . . . . . . . . . . . . . . 73
Creating and using recovery media . . . . . 73
Performing backup and recovery operations . 74
Using the Rescue and Recovery workspace . 75
Creating and using a rescue medium . . . . 76
Reinstalling preinstalled applications and
device drivers . . . . . . . . . . . . . 77
Reinstalling software programs . . . . . . 78
Reinstalling device drivers . . . . . . . . 78
Solving recovery problems . . . . . . . . 78
Recovery information for the Windows 8 or
Windows 8.1 operating system . . . . . . . . 79
Refreshing your computer . . . . . . . . 79
Resetting your computer to the factory default
settings. . . . . . . . . . . . . . . . 79
Using the advanced startup options . . . . 79
Recovering your operating system if Windows
8 or Windows 8.1 fails to start . . . . . . . 80
Chapter 7. Using the Setup Utility
program . . . . . . . . . . . . . . . . 81
Starting the Setup Utility program . . . . . . . 81
Viewing and changing settings . . . . . . . . 81
Using passwords. . . . . . . . . . . . . . 81
Password considerations. . . . . . . . . 82
Power-On Password . . . . . . . . . . 82
Administrator Password . . . . . . . . . 82
Hard Disk Password. . . . . . . . . . . 82
Setting, changing, and deleting a password . 82
Erasing lost or forgotten passwords (clearing
CMOS) . . . . . . . . . . . . . . . . 83
Enabling or disabling a device . . . . . . . . 83
Selecting a startup device . . . . . . . . . . 84
Selecting a temporary startup device . . . . 84
Selecting or changing the startup device
sequence . . . . . . . . . . . . . . . 84
Enabling ErP compliance mode . . . . . . . . 84
ICE performance mode . . . . . . . . . . . 85
ICE thermal alert . . . . . . . . . . . . . . 85
Exiting the Setup Utility program . . . . . . . 86
Chapter 8. Updating system
programs . . . . . . . . . . . . . . . 87
Using system programs . . . . . . . . . . . 87
Updating (flashing) the BIOS from a disc . . . . 87
Updating (flashing) the BIOS from your operating
system. . . . . . . . . . . . . . . . . . 88
Recovering from a POST/BIOS update failure . . 88
Chapter 9. Preventing problems . . . 89
Keeping your computer current . . . . . . . . 89
Getting the latest device drivers for your
computer . . . . . . . . . . . . . . . 89
Updating your operating system . . . . . . 89
Using System Update . . . . . . . . . . 90
Cleaning and maintenance . . . . . . . . . . 90
Basics . . . . . . . . . . . . . . . . 90
Cleaning your computer . . . . . . . . . 91
Good maintenance practices . . . . . . . 92
Moving your computer . . . . . . . . . . . 93
Chapter 10. Troubleshooting and
diagnostics . . . . . . . . . . . . . . 95
Basic troubleshooting . . . . . . . . . . . . 95
Troubleshooting procedure . . . . . . . . . . 96
Troubleshooting . . . . . . . . . . . . . . 96
Audio problems . . . . . . . . . . . . 97
CD problems . . . . . . . . . . . . . 98
DVD problems . . . . . . . . . . . . . 99
Intermittent problems . . . . . . . . . . 101
Keyboard, mouse, or pointing device
problems . . . . . . . . . . . . . . . 101
Monitor problems. . . . . . . . . . . . 103
Networking problems . . . . . . . . . . 105
Option problems . . . . . . . . . . . . 107
Performance and lockup problems . . . . . 108
Printer problems . . . . . . . . . . . . 110
Serial connector problems . . . . . . . . 110
Software problems . . . . . . . . . . . 111
USB problems . . . . . . . . . . . . . 112
Lenovo Solution Center . . . . . . . . . . . 112
Chapter 11. Getting information, help,
and service . . . . . . . . . . . . . 113
Information resources . . . . . . . . . . . . 113
Lenovo ThinkVantage Tools . . . . . . . . 113
ii ThinkCentre M93z User Guide