Sun Oracle Sun Fire X4270 M2 Service Manual page 121

2. Unpack the CPU kit.
The kit includes a CPU chip and a heatsink with the thermal grease pre-applied.
3. Install the CPU (
FIGURE 4-14
a. Properly orient the CPU with the socket alignment tabs and carefully place
the CPU into the socket [1].
Ensure that the orientation is correct as damage might result if the CPU pins are
not aligned correctly.
b. Lower the pressure frame [2].
Ensure that the pressure frame sits flat around the periphery of the CPU.
c. Engage the release lever by rotating it downward and slipping it under the
catch [2].
d. Orient the heatsink so that the two screws line up with the mounting studs
and so that the heatsink is aligned with the other heatsink, that is, the front
of the heatsink should align with the front of the other heatsink [3].
Caution – When handling the heatsink, be careful not get the thermal grease on
your fingers so as not to transfer the grease to other server components. To do so
could cause component contamination and/or damage.
e. Carefully position the heatsink on the CPU, aligning it with the mounting
posts to reduce movement after it makes initial contact with the layer of
thermal grease [3].
Caution – If the heatsink assembly is moved too much during its installation, the
layer of thermal grease may not be distributed evenly, leading to component damage.
f. Tighten the screws alternately one-half turn until fully seated [3].
4. Return the server to operation.
a. Install the top cover.
See Section 6.2, "Installing the Server Top Cover" on page
b. Install the server into the rack.
See Section 6.3, "Reinstalling the Server in the Rack" on page
c. Return the server to the normal rack position.
See Section 6.4, "Returning the Server to the Normal Rack Position" on page 6-5
).
Chapter 4 Servicing Motherboard Components
6-2.
6-4.
4-35