Installing A Heat Sink Retention Module; Removing The System Board - IBM System x3550 M3 Type 4254 Problem Determination And Service Manual

7. If you are instructed to return the heat sink retention module, follow all the

Installing a heat sink retention module

To install a heat sink retention module, complete the following steps:
1. Read the safety information that begins on page vii and "Installation guidelines"
2. Align the retention module with the holes on the system board.
3. Use a screwdriver to reinstall the four screws that you removed earlier.
4. Reinstall the microprocessor and heat sink (see "Installing a microprocessor and
5. Reinstall the air baffle.
6. Install the cover (see "Installing the cover" on page 174).
7. Slide the server into the rack.
8. Reconnect the power cords and any cables that you removed.
9. Turn on the peripheral devices and the server.

Removing the system board

To remove the system board, complete the following steps.
Notes:
1. When you replace the system board, make sure that you remove the virtual
2. When you replace the system board, you must either update the server with the
250
IBM System x3550 M3 Types 4254 and 7944: Problem Determination and Service Guide
packaging instructions, and use any packaging materials for shipping that are
supplied to you.
on page 167.
heat sink" on page 245).
media key and place it on the new system board. For information about the
location of the key, see "Removing the virtual media key" on page 216.
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.
1. Read the safety information that begins on page vii and "Installation guidelines"
on page 167.
2. Turn off the server and any attached devices.
3. Turn off the peripheral devices and disconnect all power cords; then, remove
the cover (see "Removing the cover" on page 174).
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.