Replacing The System Board - Lenovo ThinkCentre Hardware Maintenance Manual
Machine types: 3026, 3029, 3039, 3054, 3137, 3139, 3149, 3219, 3245, 3246, 3245, 3282, 3319, 3349, 3394, 3421, 3491, 3544, 3627, 3652, 3699, 3769, 3878, 3934, 4972, 4992, 5132, 5206, 5261, 5267, 5297, 5325, 5384, 5391, 5450, 5472, 5474, 5485, 5498, 5536,
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Also See for ThinkCentre:
- Hardware maintenance manual (546 pages) ,
- Safety and warranty manual (265 pages) ,
- User manual (32 pages)
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Figure 12. Removing the microprocessor
7. Make sure that the small handle is in the raised position and the microprocessor retainer is fully open.
8. Hold the new microprocessor and align the notches on it with the alignment keys in the microprocessor
socket, or align the small triangle on one corner of the new microprocessor with the corresponding
beveled corner of the microprocessor socket.
9. Lower the new microprocessor straight down into the microprocessor socket on the system board.
10. Close the microprocessor retainer and lock it into position with the small handle to secure the new
microprocessor in the socket.
11. Reinstall the heat sink and fan assembly. See "Replacing the heat sink and fan assembly" on page 75.
12. Reinstall any other parts or reconnect any other cables you removed.
13. Go to "Completing the parts replacement" on page 98.
Replacing the system board
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
This section provides instructions on how to replace 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 removing the computer cover.
To replace the system board:
1. Remove the computer cover. See "Removing the computer cover" on page 68.
2. Place the computer on the right side to make the system board more accessible.
3. Remove any adapter cards installed.
4. Disconnect the signal and power cables from the hard disk drive.
5. Remove the hard disk drive from the computer to gain access to the system board. See "Replacing the
primary hard disk drive" on page 85.
.
Chapter 8
Replacing FRUs (Machine Types: 3029, 3054, 3139, 3219, 3246, 3282, 3349, 3421, 3544, 3652, 3769, 3934,
4992, 5206, 5267, 5325, 5384, 5450, 5474, 5498, 5554, 5852, 6232, and 6590.)
79
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