Thermal Grease; Processor Board - IBM HS40 - BladeCenter - 8839 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 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.
Note:
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 0.01 mL
6. Install the heat sink onto the microprocessor as described in "Installing an

Processor board

When replacing the processor board, you must either update the system with the
latest firmware or restore the pre-existing firmware that the customer provides on a
diskette or CD image.
Note:
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BladeCenter HS40 Type 8839: Hardware Maintenance Manual and Troubleshooting Guide
v Read "Installation guidelines" on page 33.
v Read the safety notices beginning on page 109.
v Read "Handling electrostatic discharge-sensitive devices" on page 112.
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.
each on the top of the microprocessor.
Microprocessor
Note: 0.01 mL is one tick mark on the syringe. If the grease is properly applied,
approximately half (0.22 mL) of the grease will remain in the syringe.
additional microprocessor" on page 46.
v Read "Installation guidelines" on page 33.
v Read the safety notices beginning on page 109.
0.01 mL of
thermal grease