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Note: If you are installing an additional microprocessor in microprocessor
socket 3 or 4, you must also install a VRM.
8. If necessary, install a VRM in the connector.
a. Open the retaining clips on each end of the VRM connector.
b. Turn the VRM so the keys align with the slot.
c. Insert the VRM into the connector by aligning the edges of the VRM with
the slots at the end of the VRM connector. Firmly press the VRM straight
down into the connector by applying pressure on both ends of the VRM
simultaneously. The retaining clips snap into the locked position when the
VRM is seated in the connector.
9. Install the air baffle in the microprocessor tray.
10. Install the microprocessor tray in the server:
a. Make sure that the microprocessor-tray release latch is open; then, push
the microprocessor tray into the server.
b. Close the tray levers and make sure they are securely latched.
c. Close the microprocessor-tray release latch.
d. Reinstall the fans and memory cards in the server.
11. Install the top cover and bezel (see "Top cover and bezel" on page 113).
12. Slide the server into the rack.
13. Connect the cables and power cords (see "Completing the installation" in the
Installation Guide or User's Guide for cabling instructions).
14. Turn on all attached devices and the server.
Thermal grease
The thermal grease must be replaced whenever the heat sink has been removed
from the top of the microprocessor and is going to be reused or when debris is
found in the grease.
To replace damaged or contaminated thermal grease on the microprocessor and
heat sink, complete the following steps:
1. Place the heat sink on a clean work surface.
2. Remove the cleaning pad from its package and unfold it completely.
3. Use the cleaning pad to wipe the thermal grease from the bottom of the heat
sink.
Note: Make sure that all of the thermal grease is removed.
4. Use a clean area of the cleaning pad to wipe the thermal grease from the
microprocessor; then, dispose of the cleaning pad after all of the thermal grease
is removed.
Microprocessor
0.01 mL of
thermal grease
Chapter 4. Removing and replacing server components
125
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