Removing a microprocessor and heat sink
Attention:
v Always use the microprocessor installation tool to remove a microprocessor.
Failing to use the microprocessor installation tool may damage the
microprocessor sockets on the system board. Any damage to the microprocessor
sockets may require replacing the system board.
v Microprocessors are to be removed only by trained service technicians.
v Do not allow the thermal grease on the microprocessor and heat sink to come in
contact with anything. Contact with any surface can compromise the thermal
grease and the microprocessor socket.
v Dropping the microprocessor during installation or removal can damage the
contacts.
v Do not touch the microprocessor contacts; handle the microprocessor by the
edges only. Contaminants on the microprocessor contacts, such as oil from your
skin, can cause connection failures between the contacts and the socket.
To remove a microprocessor and heat sink, complete the following steps:
1. Read the safety information that begins on page vii, “Handling static-sensitive
devices” on page 193, and “Installation guidelines” on page 191.
2. Turn off the server and peripheral devices and disconnect the power cord and
all external cables.
3. Remove the cover (see “Removing the cover” on page 205).
4. Depending on which microprocessor you are removing, remove the following
components, if necessary:
v Microprocessor 1: PCI riser-card assembly 1 and DIMM air baffle (see
“Removing a PCI riser-card assembly” on page 218 and “Removing the air
baffle” on page 206)
v Microprocessor 2: PCI riser-card assembly 2 (see “Removing a PCI
riser-card assembly” on page 218).
5. Disconnect any cables that impede access to the heat sink and the
microprocessor.
6. Locate the microprocessor to be removed (see “System-board internal
connectors” on page 17).
7. Remove the heat sink:
Attention: Do not touch the thermal material on the bottom of the heat sink.
Touching the thermal material will contaminate it. If the thermal material on the
microprocessor or heat sink becomes contaminated, you must wipe off the
contaminated thermal material on the microprocessor or heat sink with the
alcohol wipes and reapply clean thermal grease to the heat sink.
a. Open the heat sink release lever to the fully open position.
b. Lift the heat sink out of the server. After removal, place the heat sink (with
the thermal grease side up) on a clean, flat surface.
Chapter 5. Removing and replacing server components 279