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Removing the system board
To remove the system board, complete the following steps.
80
IBM System x3610 Type 7942: Problem Determination and Service Guide
1. Read the safety information that begins on page vii and "Installation guidelines"
on page 43.
2. Turn off the server, and disconnect all power cords and external cables.
3. Remove the server cover (see "Removing the cover" on page 46).
Note: When you replace the system board, you must either update the server
with the latest firmware or restore the pre-existing firmware that the customer
provides on a diskette or CD image. Make sure that you have the latest
firmware or a copy of the pre-existing firmware before you proceed.
4. Remove the air duct (see "Removing the air duct" on page 47).
5. Remove all adapters and place them on a static-protective surface for
reinstallation
Important: Note which DIMMs are in which connectors, before you remove the
DIMMs. You must install them in the same configuration on the replacement
system board.
6. Remove all DIMMs, and place them on a static-protective surface for
reinstallation (see "Removing a memory module (DIMM)" on page 52).
7. Disconnect all cables from the system board.
Attention:
In the following step, do not allow the thermal grease to come in
contact with anything, and keep each heat sink paired with its microprocessor
for reinstallation. Contact with any surface can compromise the thermal grease
and the microprocessor socket; a mismatch between the microprocessor and
its original heat sink can require the installation of a new heat sink instead.
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