IBM 84875MU, User Manual

Page: 77 / 160

To replace the power supply, reverse the previous steps, making sure to engage the
hooks on the power supply to the slots on the chassis.
Microprocessor and fan sink
Note:
v Read “Installation guidelines” on page 23.
v Read the safety notices at “Safety information” on page 107.
v Read “Handling static-sensitive devices” on page 24.
Complete the following steps to remove the fan-sink assembly and the
microprocessor:
1. Turn off the server and attached devices; then, disconnect all power cords and
external cables.
2. Turn the server on its side so that it is laying flat, with the cover facing up.
3. Remove the cover and support bracket (see“Removing the side cover” on
page 26 and “Removing and installing the support bracket” on page 28).
4. Disconnect the fan sink cable from the system board.
5. Disconnect any cables that impede access to the microprocessor.
Note: The illustrations in this document might differ slightly from your
hardware.
Orientation indicators
6. Loosen the two captive screws on either side (in leaf spring enclosures) of the
heat sink.
7. With the two captive screws loosened, pivot the leaf-spring assemblies
outward and out of the notches on the fan-sink assembly.
Chapter 6. Field replaceable units
67