Installing Or Replacing The Microprocessor - Lenovo ThinkServer RD650 User Manual And Hardware Maintenance Manual

b. Gently twist the heat sink to free it from the microprocessor and then lift the heat sink off the system
board.
c. Lay aside the old heat sink.
Notes:
• Use a cleaning pad to wipe the thermal grease from the top of the microprocessor before installing
the new heat sink. Dispose of the cleaning pad after all of the thermal grease is removed from
the microprocessor.
• When handling the heat sink, do not touch the thermal grease on the bottom of it.
7. Touch the static-protective package that contains the new heat sink to any unpainted surface on the
outside of the server. Then, remove the new heat sink from the package.
8. Remove any protective cover that protects the thermal grease on the bottom of the new heat sink. Then,
place the new heat sink on the system board so that the four screws on the new heat sink are aligned
with the corresponding mounting studs on the system board.
9. Install the four screws to secure the new heat sink 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
it. Do not over-tighten the screws.
b. Partially tighten screw
it. Do not over-tighten the screws.
Figure 106. Installing the screws to secure the heat sink
10. If you are instructed to return the old heat sink, 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 installation or replacement, go to "Completing the parts replacement" on page 193.

Installing or replacing the microprocessor

This topic contains the following information:
• "Installing the second microprocessor" on page 131
130
ThinkServer RD650 User Guide and Hardware Maintenance Manual
1 , then firmly tighten screw
2 , then firmly tighten screw
1
4
3 , and then return to screw
4 , and then return to screw
2
3
1 and firmly tighten
2 and firmly tighten