Sun Microsystems Netra X4200 M2, Руководство по обслуживанию

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Chapter 3 Maintaining the Netra X4200 M2 Server 81
e. When the CPU is fully seated in the socket, pivot the hinged retainer plate
down onto the top of the CPU.
f. Pivot the release lever down and into the locked position, at the side of the
socket.
The release lever must lock down the retainer plate as you close the lever. See
FIGURE 3-56
for a view of how the lever locks down the edge of the plate.
g. 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.
h. Use one syringe of thermal grease (0.5 g) to carefully apply grease to the top
of the CPU in three lines in the pattern shown in
FIGURE 3-58
.
FIGURE 3-58
Required Pattern for Thermal Grease Application
2. Turn the heatsink upright and reinstall the four springs and mounting bolts.
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.
3. Carefully position and align the heatsink over the CPU.
CPU surface
Lines of thermal grease