Chapter 3 Maintaining the Sun Fire Servers 3-23
Caution – The pins on the CPU are very fragile. If the CPU is correctly aligned, it
will enter the CPU socket with little or no resistance. If you feel more than minimal
resistance, stop and recheck the alignment. Forcing a misaligned CPU into the CPU
socket could damage both devices.
b. When the CPU is fully seated in the socket, pivot the release lever downward
and into the locked position, at the side of the socket.
8. Install the heatsink.
a. Turn the heatsink upright and reinsert the two springs and mounting screws.
Caution – Avoid moving the heatsink after it has contacted the top of the CPU. Too
much movement could disturb the layer of thermal grease, leading to component
damage.
b. Carefully position and align the heatsink over the CPU.
Note – The heatsink is not symmetrical and it must be aligned before you place it on
the CPU. Turn the heatsink so that the “Lever Side” label and arrows imprinted on
the top of the heatsink are pointing to the side of the CPU socket that has the release
lever. Also note that the half of the Sun Microsystems logo imprinted on the top of
the heatsink will create a complete logo when correctly aligned with the adjacent
heatsink. See FIGURE 3-11 on page 19.
c. Lower the heatsink onto the CPU, aligning the mounting screws with their
holes on the motherboard.
d. Using an adjustable torque driver, alternately tighten the two heatsink
mounting screws 180 degrees at a time until each spring is completely
compressed. Tighten screws to 7 in-lbs (0.8 Nm).
3.12.3 Replacing a CPU and Heatsink (Sun Fire X4100
M2/X4200 M2 Servers)
Note – This component is an FRU and should be replaced only by qualified service
technicians. Contact your Sun Service representative for assistance.
To Next Page
Loading...
