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Replacing the system board

UPC - 884942570094

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Replacing the system board CAUTION: The heat sink and microprocessor might be very hot. Turn off the computer and wait three to five minutes to let the computer cool before opening the computer cover. Attention Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to: http://www.lenovo.com/support Note: When replacing the system board a new retention module for the microprocessor heat sink is required. Make sure you have a new retention module before beginning this procedure. This section provides instructions on how to remove and replace the system board. The procedure varies depending upon the machine type. 1. Remove the cover. See "Removing the computer cover" on page 85. 2. Place the computer on its right side to help make the system board more accessible. 3. Remove any adapter cards installed in the PCI connectors. 4. Disconnect the signal and power cables from the hard disk drive and remove the hard disk drive out of the chassis. See "Replacing the primary hard disk drive" on page 102. 5. Disconnect the heat sink and fan assembly cable from the system board. And lift the heat sink and fan assembly off the failing system board. See the system board illustration for your machine type at "System board connectors" on page 84. 6. Carefully take note of the location of all cable connections on the system board and disconnect all cables. See the system board illustration for your machine type at "System board connectors" on page 84. 7. Remove the screws that secure the system board to the chassis. 8. Remove the failing system board out of the chassis. 9. Install the new retention module to the new system board. 10. Remove the memory modules from the failing system board and install them in the same location on the new system board. 11. Install the new system board into the chassis and align the screw holes with those in the chassis. Insert and tighten the screws that secure the system board. 12. Install the new Microprocessor in the new system board. See "Replacing the microprocessor" on page 94. 13. Install the heat sink and fan assembly on the system board. See "Replacing the heat sink and fan assembly" on page 92. 14. Connect the heat sink and fan assembly cable to the new system board. See the system board illustration for your machine type at "System board connectors" on page 84. 90 Hardware Maintenance Manual

Section	Page
Contents	5
Chapter 1. About this manual	7
Important Safety Information	7
Important information about replacing RoHS compliant FRUs	8
Chapter 2. Safety information	9
General safety	9
Electrical safety	9
Voltage-selection switch	11
Safety inspection guide	11
Handling electrostatic discharge-sensitive devices	12
Grounding requirements	13
Safety notices (multi-lingual translations)	13
Chapter 3. General information	45
The ThinkVantage Productivity Center program	45
Additional information resources	45
Specifications	46
Types 7258, 7260, 7268, 7270, 7280, 7296, 7298, 7304, 7307,7413, 7491, and 7508	46
Types 7259, 7267, 7269, 7279, 7297, 7303, 7306, 7487, 7506, and 7514	46
Chapter 4. General Checkout	49
Problem determination tips	49
Chapter 5. Diagnostics	51
Lenovo System Toolbox	51
PC-Doctor for Windows PE	51
Running diagnostics from the Rescue and Recovery workspace	51
PC-Doctor for DOS	52
Creating a diagnostic CD/DVD image	52
Running diagnostics from the disc	52
Navigating through the diagnostics programs	52
Running tests	52
Test results	53
Quick and Full erase - hard drive	54
Viewing the test log	54
Chapter 6. Using the Setup Utility	55
Starting the Setup Utility program	55
Viewing and changing settings	55
Using passwords	55
Password considerations	55
Power-On Password	56
Privileged Access Password	56
Setting, changing, and deleting a password	56
Enabling or disabling a device	56
Selecting a startup device	57
Selecting a temporary startup device	57
Selecting or changing the startup device sequence	57
Advanced settings	58
Exiting from the Setup Utility program	58
Chapter 7. Symptom-to-FRU Index	59
Hard disk drive boot error	59
Power Supply Problems	59
Diagnostic error codes	60
Beep symptoms	81
POST error codes	82
Miscellaneous error messages	84
Undetermined problems	85
Chapter 8. Replacing FRUs (Types 7258, 7260, 7268, 7270, 7280, 7296, 7298, 7304, 7307,7413, 7491, and 7508)	87
Locations	88
Rear connectors	88
Computer components	89
System board connectors	90
Removing the computer cover	91
Removing and installing the front bezel	93
Replacing the power supply assembly	94
Replacing the system board	96
Replacing the heat sink and fan assembly	98
Replacing the microprocessor	100
Replacing a memory module	104
Installing or replacing an adapter card	106
Replacing the primary hard disk drive	108
Replacing the secondary hard disk drive	111
Replacing an optical drive	115
Replacing the diskette drive or card reader	116
Replacing the front fan assembly	118
Replacing the rear fan assembly	120
Replacing the front audio/USB assembly	122
Replacing the power switch/LED assembly	123
Replacing the CMOS battery	124
Replacing the Internal speaker	125
Completing the FRU replacement	126
Chapter 9. Replacing FRUs (Types 7259, 7267, 7269, 7279, 7290, 7297, 7303, 7306, 7408, 7487, 7506 and 7514)	127
Locations	128
Rear connectors	128
Computer components	129
System board connectors	130
Opening the cover	131
Accessing system board components and drives	132
Replacing a memory module	133
Replacing the battery	134
Replacing the power supply	135
Replacing the system board	137
Replacing the microprocessor	140
Replacing the heat sink and fan assembly	143
Replacing the hard disk drive	144
Replacing the optical drive	147
Replacing the internal speaker	150
Replacing the power switch/LED assembly	151
Replacing the card reader	152
Installing or replacing an adapter card	153
Completing the FRU replacement	156
Chapter 10. FRU lists	157
Machine Type 7258	157
Machine Type 7259	169
Machine Type 7260	180
Machine Type 7267	191
Machine Type 7268	202
Machine Type 7269	213
Machine Type 7270	224
Machine Type 7279	235
Machine Type 7296	246
Machine Type 7297	257
Machine Type 7298	268
Machine Type 7303	280
Machine Type 7304	292
Machine Type 7306	303
Machine Type 7307	314
Machine Type 7408	326
Machine Type 7491	337
Machine Type 7506	349
Machine Type 7508	360
Machine Type 7514	372
Special bid information	382
Chapter 11. Additional Service Information	385
Security features	385
Hardware controlled Passwords	385
Operating system password	385
Vital product data	385
BIOS levels	385
Flash update procedures	385
Updating (flashing) BIOS from a disc	386
Updating (flashing) BIOS from your operating system	386
Recovering from a POST/BIOS update failure	386
Power management	388
Automatic configuration and power interface (ACPI) BIOS	388
Automatic Power-On features	388
Appendix. Notices	389
Television output notice	390

Match case Limit results 1 per page

Replacing the system board

CAUTION:

The heat sink and microprocessor might be very hot. Turn off the computer and

wait three to five minutes to let the computer cool before opening the computer

cover.

Attention

Do not open your computer or attempt any repair before reading and understanding the

“Important safety information” in the

ThinkCentre Safety and Warranty Guide

that came with

your computer. To obtain a copy of the

ThinkCentre Safety and Warranty Guide

, go to:

http://www.lenovo.com/support

Note:

When replacing the system board a new retention module for the

microprocessor heat sink is required. Make sure you have a new retention

module before beginning this procedure.

This section provides instructions on how to remove and replace the system board.

The procedure varies depending upon the machine type.

Remove the cover. See “Removing the computer cover” on page 85.

Place the computer on its right side to help make the system board more

accessible.

Remove any adapter cards installed in the PCI connectors.

Disconnect the signal and power cables from the hard disk drive and remove

the hard disk drive out of the chassis. See “Replacing the primary hard disk

drive” on page 102.

Disconnect the heat sink and fan assembly cable from the system board. And

lift the heat sink and fan assembly off the failing system board. See the system

board illustration for your machine type at “System board connectors” on

page 84.

Carefully take note of the location of all cable connections on the system

board and disconnect all cables. See the system board illustration for your

machine type at “System board connectors” on page 84.

Remove the screws that secure the system board to the chassis.

Remove the failing system board out of the chassis.

Install the new retention module to the new system board.

10.

Remove the memory modules from the failing system board and install them

in the same location on the new system board.

11.

Install the new system board into the chassis and align the screw holes with

those in the chassis. Insert and tighten the screws that secure the system

board.

12.

Install the new Microprocessor in the new system board. See “Replacing the

microprocessor” on page 94.

13.

Install the heat sink and fan assembly on the system board. See “Replacing the

heat sink and fan assembly” on page 92.

14.

Connect the heat sink and fan assembly cable to the new system board. See

the system board illustration for your machine type at “System board

connectors” on page 84.

Hardware Maintenance Manual