Installing A Cpu (Replacing Heatsink) - Sun Microsystems Sun Fire X4450 Service Manual

4.9.4

Installing a CPU (Replacing Heatsink)

To install a CPU do the following. This procedure replaces the CPU heatsink.
1. Prepare the server for service.
a. Power off the server.
b. Disconnect the power cord (or cords) from the power supply (or supplies).
c. Slide the server out of the rack.
d. Attach an antistatic wrist strap.
e. Remove the top cover.
2. Remove the memory tray.
See
3. Remove the shipping cover from socket.
4. Clean the top of the CPU with the provided alcohol wipe.
5. Place the CPU in the socket with the correct orientation.
6. Engage the lever by rotating downward and pressing into the catch.
7. Remove the plastic protective cover from heatsink.
Be careful not to disturb or touch the pre-installed thermal interface material.
8. Orient the heatsink so the four screws line up with the mounting studs.
9. Tighten the four screws alternately one 1/2 turn in an X pattern until fully
seated.
10. Reinstall the memory tray.
See
11. Return the server to operation.
See Section 2.4, "Powering Off the Server" on page
See Section 2.4, "Powering Off the Server" on page
See Section 2.5, "Extending the Server to the Maintenance Position" on
page 2-5.
See Section 2.7, "Performing Electrostatic Discharge and Antistatic Prevention
Measures" on page 2-9.
See Section 2.8, "Removing the Top Cover" on page
Section 4.2.1, "Removing the Memory Tray" on page
Section 4.2.2, "Installing the Memory Tray" on page
2-3.
2-3.
2-11.
4-13.
Chapter 4 Servicing Motherboard Components
4-11.
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