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System board locations are different depending on the machine type., Power switch/LED

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1 Fan plenum, fan, and heat 6 sink Diskette drive 2 Microprocessor 7 Front panel card 3 Optical drive 8 Memory modules 4 Power switch/LED assembly 9 System board 5 Hard disk drive 10 Power supply Identifying parts on the system board System board locations are different depending on the machine type. Chapter 9. Replacing FRUs (Types 7390, 7391, 7392, 7396, 7397, and 7398) 95

Section	Page
Chapter 1. About this manual	7
Important Safety Information	7
Important information about replacing RoHS compliant FRUs	7
Chapter 2. Safety information	9
General safety	9
Electrical safety	9
Safety inspection guide	11
Handling electrostatic discharge-sensitive devices	11
Grounding requirements	12
Safety notices (multi-lingual translations)	12
Chapter 3. General information	35
The Lenovo Care program	35
Additional information resources	35
Specifications	35
Machine types 7387, 7388, 7389, 7393, 7394, and 7395	36
Machine types 7390, 7391, 7392, 7396, 7397, and 7398	36
Chapter 4. General Checkout	39
Problem determination tips	39
Chapter 5. Diagnostics	41
PC-Doctor for Windows	41
PC-Doctor for DOS	41
Creating a diagnostic CD image	41
Creating diagnostic diskettes	42
Running diagnostics from the CD or diskettes	42
Running diagnostics from the Rescue and Recovery workspace	42
PC-Doctor for Windows PE	43
Running diagnostics from the Rescue and Recovery workspace	43
Navigating through the diagnostics programs	43
Running tests	43
Test results	44
Fixed disk advanced test (FDAT)	44
Quick and Full erase - hard drive	46
Viewing the test log	46
Chapter 6. Using the Setup Utility	47
Starting the Setup Utility program	47
Viewing and changing settings	47
Using passwords	47
User Password	47
Administrator or Supervisor Password	48
Selecting a startup device	48
Selecting a temporary startup device	48
Changing the startup device sequence	49
Exiting from the Setup Utility program	49
Chapter 7. Symptom-to-FRU Index	51
Hard disk drive boot error	51
Power Supply Problems	51
Diagnostic error codes	52
Beep symptoms	69
POST error codes	70
Miscellaneous error messages	71
Undetermined problems	73
Chapter 8. Replacing FRUs (Types 7387, 7388, 7389, 7393, 7394, and 7395)	75
Rear connectors	75
Removing the covers	76
Locations	76
Identifying parts on the system board	77
Machine Types 7387, 7388, and 7389	78
Machine Types 7393, 7394, and 7395	79
Removing and replacing the front bezel	79
Replacing a memory module	80
Replacing a PCI adapter	81
Replacing the CMOS battery	82
Replacing the power supply	82
Replacing the system board (Types 7393, 7394, and 7395)	83
Replacing the system board (Types 7387, 7388, and 7389)	86
Replacing the microprocessor (Types 7393, 7394, and 7395)	88
Replacing the microprocessor (Types 7387, 7388, and 7389)	91
Replacing the primary hard disk drive	94
Replacing an optical drive	95
Replacing the diskette drive	96
Replacing the power switch/ LED assembly	97
Replacing the front panel card assembly	97
Completing the FRU replacement	98
Chapter 9. Replacing FRUs (Types 7390, 7391, 7392, 7396, 7397, and 7398)	99
Rear connectors	99
Removing the cover	100
Locations	100
Identifying parts on the system board	101
Machine Types 7390, 7391, and 7392	102
Machine Types 7396, 7397, and 7398	103
Removing and replacing the drive bay assembly	103
Replacing a memory module	104
Replacing a PCI adapter	105
Replacing the CMOS battery	106
Replacing the power supply	107
Replacing the system board (Types 7396, 7397, and 7398)	108
Replacing the system board (Types 7390, 7391, and 7392)	111
Replacing the microprocessor (Types 7396, 7397, and 7398)	114
Replacing the microprocessor (Types 7390, 7391, and 7392)	117
Replacing the hard disk drive	120
Replacing an optical drive	121
Replacing the diskette drive	122
Replacing the power switch/ LED assembly	122
Replacing the front panel card	123
Completing the FRU replacement	123
Chapter 10. FRU lists	125
Machine Type 7387	125
Machine Type 7388	133
Machine Type 7389	138
Machine Type 7390	142
Machine Type 7392	146
Machine Type 7393	150
Machine Type 7394	159
Machine Type 7395	163
Machine Type 7396	174
Machine Type 7397	182
Machine Type 7398	187
Chapter 11. Additional Service Information	191
Security features	191
Hardware controlled Passwords	191
Operating system password	191
Vital product data	191
BIOS levels	191
Flash update procedures	191
Updating (flashing) BIOS from a diskette	192
Recovering from a POST/BIOS update failure	192
Power management	192
Automatic configuration and power interface (ACPI) BIOS	192
Automatic Power-On features	192
Recovering software	193
Appendix A. Notices	195
Television output notice	196
Trademarks	196