Sun Microsystems Sun Fire X4450 Service Manual page 97

d. Attach an antistatic wrist strap.
See Section 2.7, "Performing Electrostatic Discharge and Antistatic Prevention
Measures" on page
e. Remove the top cover.
See Section 2.8, "Removing the Top Cover" on page
2. Remove the memory tray.
See Section 4.2.1, "Removing the Memory Tray" on page
3. Remove the heatsink on top of the failed CPU. (
4. Remove the failed CPU.
5. Clean off the old thermal interface material from the heatsink and CPU, using
the supplied alcohol wipe.
6. Set the heat sink aside.
7. Place the new CPU in the socket.
Make sure the orientation is correct.
8. Engage the lever by rotating downward and pressing it into the catch.
9. Using the supplied grease syringe, empty the syringe on to the CPU in a star
shaped pattern.
10. Smooth the grease into a thin even layer on top of the CPU.
You can use a piece of plastic bag over your finger.
11. Orient the heatsink so that the four screws line up with the mounting inserts.
12. Tighten the four screws alternately one 1/2 turn in an X pattern until fully
seated.
13. Reinstall the memory tray.
See Section 4.2.2, "Installing the Memory Tray" on page
14. Return the server to operation.
a. Install the top cover.
See Section 6.1, "Installing the Top Cover" on page
b. Install the server into the rack.
See Section 6.2, "Reinstalling the Server in the Rack" on page
2-9.
Chapter 4
2-11.
4-11.
)
FIGURE 4-21
4-13.
6-2.
6-3.
Servicing Motherboard Components 4-39