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10. Install the four screws to secure the new heat sink and fan assembly on the system board. It is
recommended that you carefully install the four screws using the following method to avoid any possible
damage to the system board.
a. Partially tighten screw 1 , then rmly tighten screw 3 , and then return to screw 1 and rmly tighten
it. Do not over-tighten the screws.
b. Partially tighten screw 2 , then rmly tighten screw 4 , and then return to screw 2 and rmly tighten
it. Do not over-tighten the screws.
Figure 91. Installing the screws to secure the heat sink and fan assembly
11. Connect the heat sink and fan assembly cable to the microprocessor fan connector on the system
board. See “System board components” on page 42
.
Note: If the heat sink and fan assembly cable is too long, loosely knot the cable for proper cable routing.
12. If you are instructed to return the old heat sink and fan assembly, follow all packaging instructions and
use any packaging materials that are supplied to you for shipping.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the replacement, go to “Completing the parts replacement” on page 162.
Replacing the microprocessor
Attention: Do not open your server or attempt any repair before reading and understanding the “Safety information”
on page iii
and “Guidelines” on page 83.
This topic provides instructions on how to replace the microprocessor.
Chapter 6. Installing, removing, or replacing hardware 157