Contents
Chapter 1. About this manual . . . . .1
Important Safety Information . . . . . . . . .1
Important information about replacing RoHS
compliant FRUs . . . . . . . . . . . . .2
Turkish statement of compliance . . . . . . . .3
Chapter 2. Safety information . . . . .5
General safety . . . . . . . . . . . . . .5
Electrical safety . . . . . . . . . . . . .5
Safety inspection guide . . . . . . . . . . .7
Handling electrostatic discharge-sensitive devices . .8
Grounding requirements . . . . . . . . . .8
Safety notices (multi-lingual translations) . . . . .9
Chapter 3. General information . . . .39
Additional information resources . . . . . . .39
Specifications . . . . . . . . . . . . . .40
Chapter 4. General Checkout . . . . .41
Problem determination tips . . . . . . . . .41
Chapter 5. Diagnostics . . . . . . . .43
Lenovo System Toolbox . . . . . . . . . .43
PC-Doctor for DOS . . . . . . . . . . . .43
Creating a diagnostic CD/DVD image . . . .44
Running diagnostics from the disc . . . . . .44
Navigating through the diagnostics programs . . .44
Running tests . . . . . . . . . . . . . .44
Test results . . . . . . . . . . . . .45
Fixed disk advanced test (FDAT) . . . . . .45
Quick and Full erase - hard drive . . . . . .47
Viewing the test log . . . . . . . . . . .47
Chapter 6. Using the Setup Utility . . .49
Starting the Setup Utility program . . . . . . .49
Viewing and changing settings . . . . . . . .49
Using passwords . . . . . . . . . . . .49
Password considerations . . . . . . . . .50
Power-On Password . . . . . . . . . .50
Administrator Password . . . . . . . . .50
Setting, changing, and deleting a password . . .50
Selecting a startup device . . . . . . . . . .51
Selecting a temporary startup device . . . . .51
Changing the startup device sequence . . . .51
Exiting from the Setup Utility program . . . . .51
Chapter 7. Symptom-to-FRU Index . . .53
Hard disk drive boot error . . . . . . . . .53
Power Supply Problems . . . . . . . . . .53
Diagnostic error codes . . . . . . . . . . .54
POST error codes . . . . . . . . . . . .75
Miscellaneous error messages . . . . . . . .77
Undetermined problems . . . . . . . . . .78
Chapter 8. Replacing FRUs (Type 7848) 81
Locating the connectors on the rear of your
computer . . . . . . . . . . . . . . .82
Locating the connectors on the front of your
computer . . . . . . . . . . . . . . .83
Locations . . . . . . . . . . . . . . .84
Identifying parts on the system board . . . . .85
Removing the computer cover . . . . . . . .86
Removing and replacing the front bezel . . . . .88
Installing or replacing a memory module . . . .89
Replacing a PCI adapter card . . . . . . . .92
Replacing the CMOS battery . . . . . . . . .94
Replacing the power supply . . . . . . . . .95
Replacing the heat sink and fan assembly . . . .97
Replacing the microprocessor . . . . . . . .99
Replacing the system board . . . . . . . . 102
Replacing a hard disk drive . . . . . . . . 104
Replacing an optical drive . . . . . . . . . 105
Replacing the Media Card Reader . . . . . . 105
Replacing the power switch or LED assembly . . 107
Completing the FRU replacement . . . . . . 107
Chapter 9. FRU lists . . . . . . . . 109
Machine Type 7848 . . . . . . . . . . . 109
Chapter 10. Additional Service
Information . . . . . . . . . . . . 111
Security features . . . . . . . . . . . . 111
Hardware controlled Passwords . . . . . . 111
Operating system password . . . . . . . 111
BIOS levels . . . . . . . . . . . . . . 111
Flash update procedures . . . . . . . . . . 111
Updating (flashing) BIOS from a diskette or disc 111
Updating (flashing) BIOS from the operating
system . . . . . . . . . . . . . . .112
Power management . . . . . . . . . . .113
Automatic configuration and power interface