Use this information to replace a microprocessor and heat
sink.
The following notes describe the type of microprocessor
that the server supports and other information that you must consider
when you install a microprocessor and heat sink:
Attention:
- Microprocessors are to be installed only by trained technicians.
- 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.
- Dropping the microprocessor during installation or removal can
damage the contacts.
- 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.
- The pins on the sockets are fragile. Any damage to the pins might
require replacing the system board.
Read the safety information in Safety and Installation guidelines.
If you are replacing a server component in the server,
you need to slide the server out from the rack enclosure, turn off
the server and peripheral devices, and disconnect the power cords
and all external cables.
To install a microprocessor and heat sink, complete the
following steps.
- Carefully turn the server on its side so that it is lying
flat, with the cover facing up.
Attention:
- When you handle static-sensitive devices, take precautions to
avoid damage from static electricity. For details about handling these
devices, see Handling static-sensitive devices.
- The microprocessor contacts are fragile; handle the microprocessor
very carefully. Do not touch the microprocessor contacts with your
skin.
- The microprocessor fits only one way on the socket.
- Align the microprocessor with the socket (note the alignment
mark and the position of the notches); then, carefully place the microprocessor
on the socket, close the microprocessor bracket frame, and close the
microprocessor release latch.
Figure 1. Microprocesssor installation
- Gently lower the heat sink on the microprocessor.
- Align the screw holes on the heat sink with the holes on
the system board.
Figure 2. Heat sink installation
- Install the heat sink on the microprocessor.
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, contact your service technician.
- Make sure that the thermal material is still on the
bottom of the heat sink; then, align the heat sink so that the arrows
on the label point toward the DIMMs and place the heat sink on top
of the microprocessor, thermal material side down.
- Align the screws on the heat sink with the screw holes
on the system board.
- Tighten the screws with a screwdriver, alternating among
the screws until they are tight. If possible, each screw should be
rotated two full rotations at a time. Repeat until the screws are
tight. Do not overtighten the screws by using excessive force.
Attention: When the two screws that are closer to
the rear of the server are tightened, the screw heads are not level
with the surface of the heat sink. Do not overtighten the screws by
using excessive force.
- Reinstall the air baffle if it was removed before (see Replacing the air baffle).
- Reinstall the cover (see Replacing the cover).
What to do next
- Install the server into the rack enclosure and push the server
into the rack until it clicks into place.
- Reconnect the power cords and any cables that you removed.
- Turn on the peripheral devices and the server.