Removing And Replacing Frus; Removing A Microprocessor And Heat Sink - IBM BladeCenter HS20 Problem Determination And Service Manual

Removing and replacing FRUs

FRUs must be installed only by trained service technicians.
The illustrations in this document might differ slightly from your hardware.

Removing a microprocessor and heat sink

Read the following important guidelines before removing a microprocessor that is
not faulty (for example, when you are replacing the system board assembly).
Attention:
If you are not replacing a defective heat sink or microprocessor, the thermal
material on the heat sink and microprocessor will remain effective if you complete
the following steps:
1. Carefully handle the heat sink and microprocessor when removing or installing
2. In a dual-microprocessor blade server, the microprocessor and the heat sink are
Notes:
v The heat-sink FRU is packaged with the thermal material applied to the
v The microprocessor FRU for this system board includes a heat sink.
v A heat-sink FRU can be ordered separately if the thermal material becomes
To remove a microprocessor, complete the following steps:
1. Read the safety information that begins on page vii, the "Installation guidelines"
2. Remove the blade server from the BladeCenter unit (see "Removing the blade
3. Remove the blade server cover (see "Removing the blade server cover" on
4. Remove the bezel assembly (see "Removing the bezel assembly" on page 61
5. Identify the microprocessor that is to be removed.
6. Remove the heat sink.
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BladeCenter HS20 Type 7981 and 1884: Problem Determination and Service Guide
Do not use an alcohol wipe with the microprocessor.
these components. Do not touch the thermal material or otherwise allow it to
become contaminated.
a matched set. First transfer the heat sink and microprocessor from one socket
to the new system board; then, transfer the other heat sink and microprocessor.
(This will ensure that the thermal material remains evenly distributed between
each heat sink and microprocessor.)
underside. This thermal material is not available as a separate FRU. The heat
sink must be replaced when new thermal material is required, such as when a
defective microprocessor is replaced or if the thermal material is contaminated or
has come in contact with another object other than its paired microprocessor.
contaminated.
on page 55 and "Handling static-sensitive devices" on page 56.
server from a BladeCenter unit" on page 57).
page 59 for instructions).
for instructions).
Note: If you are replacing a failed microprocessor, make sure that you have
selected the correct microprocessor for replacement (see "Light path
diagnostics" on page 38).