Removing Or Installing The System Board - Lenovo ThinkServer RD240 Hardware Maintenance Manual

Removing or installing the system board

This section provides the instructions on how to remove or install the system board.
Removing the system board
Attention
Do not open your server or attempt any repair before reading and understanding the Safety Information and the
Warranty and Support Information on the ThinkServer Documentation DVD that comes with your product, and
Guidelines. To obtain a copy of the publications, go to:
http://www.lenovo.com/support
This section provides instructions on how to remove the system board.
CAUTION:
The heat sink and microprocessor might be very hot. Turn off the server and wait three
to five minutes to let the server cool before removing the server cover.
To remove the system board, do the following:
1. Remove all media from the drives and turn off all attached devices and the server. Then, disconnect all
power cords from electrical outlets and disconnect all cables that are connected to the server.
2. Remove the server cover. See Removing the server cover.
3. Remove the microprocessor fan duct. See Removing the microprocessor fan duct.
4. Remove the riser card assembly. See Removing the riser card assembly.
5. Remove the heat sink and a memory module. See Removing the heat sink and Removing a memory
module.
6. Remove the battery. See Removing the system board battery.
7. Remove the microprocessor. See Removing the microprocessor.
8. Note the location of all cable connections on the system board and disconnect all cables. Locating
parts on the system board.
9. Remove the nine screws that secure the system board to the chassis, following the sequence shown in
the figure below:
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ThinkServer RD240 Hardware Maintenance Manual