Removing And Replacing Frus; Removing A Microprocessor - IBM System x3550 Type 7978 Problem Determination And Service Manual

Removing and replacing FRUs

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

Removing a microprocessor

Attention:
v Do not allow the thermal grease on the microprocessor and heat sink to come in
v Use the vacuum tool that comes with the replacement microprocessor to remove
v Do not touch the microprocessor contacts; handle the microprocessor by the
To remove a microprocessor and heat sink, complete the following steps:
Heat sink
installation
label
1. Read the safety information that begins on page vii and "Installation guidelines"
2. Turn off the server and peripheral devices and disconnect all power cords; then,
3. Remove the heatsink. Loosen two captive screws on alternate sides of the
contact with anything. Contact with any surface can compromise the thermal
grease and the microprocessor socket.
the microprocessor. Dropping the microprocessor during installation or removal
can damage the contacts.
edges only. Contaminants on the microprocessor contacts, such as oil from your
skin, can cause connection failures between the contacts and the socket.
Heat sink
on page 95
remove the cover (see "Removing the cover" on page 98).
heatsink fully before loosening the other two captive screws (this helps to break
the bond between the heat sink and the microprocessor). After the captive
screws are loosened, remove the heat sink.
Microprocessor
Alignment indicator
Chapter 4. Removing and replacing server components
137