Sun Microsystems Sun Fire X4100 User Manual
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Sun Fire X4100 and Sun Fire X4200 Servers Service Manual • June 2006
6. Install the new CPU and heatsink:
Note –
Mixing CPU speeds or mixing dual-core CPUs with single-core CPUs is not
supported. Use two identical CPUs in your server.
a. Unpack the new CPU and heatsink.
b. Ensure that the CPU socket release lever is in the fully open, vertical position.
c. Align the CPU in the socket as shown in
Note –
Align the triangle that is printed on one corner of the CPU with the tiny
triangle that is imprinted on the CPU socket, as shown in the red circle in
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.
d. Gently insert the CPU pins into the socket.
e. When the CPU is fully seated in the socket, pivot the release lever down and
into the locked position, at the side of the socket.
f. If you are reinstalling an existing CPU or heatsink, use an alcohol pad to clean
all old thermal grease from the component surface.
Caution –
Ensure that the thermal grease in the syringe supplied with the CPU is
pliable and not stiff. If your syringe of grease has aged, the grease might be too stiff
to adequately spread out and ensure thermal conductance.
g. Use one syringe of thermal grease (one ml) to carefully apply grease to the top
of the CPU in three lines in the pattern shown in
.