Microprocessor And Heat Sink; System Reliability Considerations - IBM 8649 - Eserver xSeries 225 Maintenance And Troubleshooting Manual

Microprocessor and heat sink

Before you begin:
v Read "Installation guidelines" on page 33
v Read "Safety information" on page 129
v Review the information in "System reliability considerations" on page 33
To remove the microprocessor and heat sink, complete the following steps:
1. Turn off the server and remove external cables.
2. Remove the side cover and frame-support bracket (see "Removing the side
3. Disconnect any cables that impede access to the microprocessor.
4. Remove the heat sink from the microprocessor:
5. Rotate the microprocessor socket lever arm upward to its maximum vertical
6. To install a microprocessor, see "Installing an additional microprocessor" on
cover" on page 36 and "Removing and installing the support bracket" on page
38).
a. Loosen the two captive screws on either side (in leaf spring enclosures) of
the fansink.
b. With the two captive screws loosened, pivot the leaf spring assemblies
outward and out of the notches on the fan sink assembly.
c. Lift the heat sink up and out of the server.
Note: It might be necessary to gently twist the heat sink to loosen it from
the microprocessor.
Important: Be careful when handling the adhesive material on the
microprocessor. If the adhesive material on the microprocessor will be
reused, do not contaminate it. If replacement adhesive material is provided
with the replacement part, be sure to remove all traces of existing adhesive
material from the microprocessor before applying the new adhesive material.
position, and lift the microprocessor up and out of the server.
page 57
Chapter 5. Field replaceable units
77