Replacing The System Board; Replacing A Memory Module - Lenovo ThinkCentre A57e Hardware Maintenance Manual

10. Go to "Completing the FRU replacement" on page 104.

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.
This section provides instructions on how to remove and install the system board.
To replace the system board, do the following:
1. Remove the side cover. See "Opening the cover" on page 84.
2. Disconnect the cables from the system board and from all drives.
3. Carefully take note of the location of all cable connections on the system board
4. Remove the screws that secure the system board to the chassis.
5. Lift the system board out of the chassis.
6. Install the new system board into the chassis and align the screw holes with
7. Remove the memory modules, adapter cards and battery from the failing
8. Connect all remaining cables to the system board. See "Locating parts on the
9. Go to "Completing the FRU replacement" on page 104.

Replacing a memory module

This section provides information on how to remove and replace a memory
module.
To remove or replace the memory module, do the following:
1. Remove the computer cover. See "Opening the cover" on page 84.
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
and disconnect all cables. See "Locating parts on the system board" on page 86.
those in the chassis. Insert and tighten the screws that secure the system board.
system board and install them in the same location on the new system board.
system board" on page 86.
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: For this procedure, it helps to lay the computer on its side.
Chapter 8. Replacing FRUs - Tamdhu Computers
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