Sun Microsystems Blade X6450, Service Manual

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Chapter 3 Maintaining the Server 3-31
b. Align the CPU over the CPU socket.
Use the triangle symbols on the CPU and the CPU socket for proper alignment.
Caution –
Possible irreparable damage to the CPU or motherboard from excessive
downward pressure. Do not press down on the CPU. The CPU does not need to be
forcibly seated in the socket. Downward pressure will damage the pins in the socket.
c. Gently set the CPU on the socket.
When properly aligned, the CPU sits flat in the CPU socket and has minimal
side-to-side movement.
d. When the CPU is in the socket, lower the release lever down and into the
locked position, at the side of the socket.
This action secures the CPU in the socket.
8. To install the heat sink:
a. Using one syringe of thermal compound (500 mg [0.2 ml]), carefully apply the
compound to the top of the CPU in an X pattern as shown in
FIGURE 3-14
.
FIGURE 3-14
Replacing the CPU
b. If you are reinstalling an existing heatsink, use an alcohol pad to clean all the
old thermal compound from the bottom surface of the heatsink. Also, clean
any dust from the heatsink fins.