Installing Or Replacing A Vrm; Installing A Microprocessor Vrm; Replacing The Xa-32 Chipset Vrm Or The Memory Board Vrm - IBM eserver xSeries 360 8686 User Reference Manual

5. Install the microprocessor heat sink.
6.
7. If you have other options to install or remove, do so now; otherwise, go to

Installing or replacing a VRM

The server comes with one pluggable VRM for each of the microprocessors, one for
the chipset, and one on the memory board for the memory components.

Installing a microprocessor VRM

Complete the following steps to install a microprocessor VRM:
1. Read the safety precautions beginning on page 53, and "Handling static-sensitive
2. Turn off the server, disconnect all power cords and external cables, and remove
3. Lift off the microprocessor heat sink stabilizer.
Attention: When you handle Electrostatic Discharge-Sensitive devices (ESD), take
precautions to avoid damage from static electricity. For details on handling these
devices, see "Handling static-sensitive devices" on page 52.
4. If you are replacing a microprocessor VRM, grasp the blue tab and lift the old
5. Holding the new VRM by the blue tab, plug it firmly into the slot; then install the
6. If you have other options to install or remove, do so now; otherwise, go to

Replacing the XA-32 chipset VRM or the memory board VRM

Complete the following steps to replace either the XA-32 chipset VRM or the memory
board VRM:
1. Read the safety precautions beginning on page 53, and "Handling static-sensitive
2. Turn off the server, disconnect all power cords and external cables, and remove
3. Lift off the microprocessor heat sink stabilizer.
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IBM® xSeries 360: User's Reference
c. Align the triangle icon on the microprocessor with the triangle icon on the
socket and press the microprocessor gently into the socket.
Attention: Make sure that the microprocessor is aligned correctly before you
proceed. To avoid bending the pins on the microprocessor, do not use
excessive force when pressing it into the socket.
d. Close the locking lever to secure the microprocessor.
Attention: Do not disturb or contaminate the heat-conducting grease on the
bottom of the new heat sink. Doing so damages its heat-conducting capability
and exposes the new microprocessor to overheating.
Remove the heat sink from its package and secure it to the top of the
microprocessor (two thumbscrews). Press firmly on the thumbscrews and tighten
them, alternating between screws until finger tight. Do not overtighten the
screws.
Install the heat-sink stabilizer.
"Completing the installation" on page 86.
devices" on page 52.
the top cover (see "Removing the server top cover and bezel" on page 66).
VRM out of its slot, as shown in the section on installing a microprocessor.
microprocessor heat sink stabilizer.
"Completing the installation" on page 86.
devices" on page 52.
the top cover (see "Removing the server top cover and bezel" on page 66).