Thermal Grease; System Reliability Considerations - IBM 8649 - Eserver xSeries 225 Maintenance And Troubleshooting Manual

Thermal grease

This section contains information about removing and replacing the thermal grease
between the heat sink and the microprocessor. The thermal grease must be
replaced any time 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.
Note:
v Read "Safety information" on page 129
v Review the information in "System reliability considerations" on page 33
Complete the following steps to replace damaged or contaminated thermal grease
on the microprocessor and heat sink:
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
4. Use a clean area of the cleaning pad to wipe the thermal grease from the
5. Use the thermal grease syringe to place 16 uniformly spaced dots of 0.01ML
6. Install the heat sink onto the microprocessor as described in "Microprocessor
78
IBM xSeries 225 Types 8649: Hardware Maintenance Manual and Troubleshooting Guide
sink.
Note: Be sure that all of the thermal grease is removed.
microprocessor; then, dispose of the cleaning pad after all of the thermal grease
is removed.
Microprocessor
each on the top of the microprocessor.
and heat sink" on page 77
0.01 mL of
thermal grease