IBM IntelliStation M Pro 6218, Problem Determination And Service Manual

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4. Install the heat sink (see Figure 51):
a. Make sure that the heat-sink retention lever is in the fully open position.
Important: Be careful when handling the microprocessor and heat sink. Do
not contaminate the thermal material between them.
b. Slide the bottom edge of the heat sink under the lower flange of the
retention module; then, place the top of the heat sink onto the top of the
retention module.
Note: The bottom edge of the heat sink is keyed to a 45-degree angle in
one corner of the retention module to maintain proper orientation.
c. Close the heat-sink retention lever and lock it securely in place.
5. Reconnect any cables that were disconnected during removal.
6. Install the air baffle onto the microprocessor fan assembly (see “Installing the
microprocessor fan assembly” on page 83).
7. Install the hard disk drive bracket, if one was removed (see “Installing the hard
disk drive bracket” on page 97).
8. Install the side cover (see “Installing the side cover” on page 76).
9. Reconnect the external cables and power cords; then, turn on the attached
devices and the computer.
Retention lever
Orientation
key
Figure 51. Installing the heat sink
Chapter 4. Removing and replacing computer components
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