Thermal Grease; Removing The System Board - IBM x3630 M3 7377 Problem Determination And Service Manual

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 exchanger, complete the following steps:
1. Place the heat-sink assembly 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 nine uniformly spaced dots of 0.02 mL
6. Continue with step4c on page 227 of the "Installing a microprocessor and heat

Removing the system board

To remove the system board, complete the following steps.
228
IBM System x3630 M3 Type 7377: Problem Determination and Service Guide
exchanger.
Note: Make 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.
Note: 0.01mL 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.
sink" on page 223 procedure.
1. Read the safety information that begins on page vii and "Installation guidelines"
on page 133.
2. Turn off the server, and disconnect all power cords and external cables.
3. Remove the cover (see "Removing the cover" on page 145).
4. If you have the optional hot-swap rear hard disk drive cage installed, rotate it
up (see "Rotating the optional hot-swap rear hard disk drive cage up" on page
147).
5. Remove the air baffle (see "Removing the air baffle" on page 148).
0.02 mL of thermal
grease