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Chapter 3: Maintenance and Component Installation
Heatsink
(Upside Down)
C
D
d
c
a
b
A
B
At locations C and D,
the notches
snap onto the heat sink’s
mounting holes
At locations A and B, the notches
snap onto the heatsink’s sides
A
B
D
C
Make sure the mounting
notches snap into place
Triangle on the CPU
Triangle on the
Processor Clip
Non-Fabric CPU and Processor Clip
(Upside Down)
Figure 3-4. Processor Heatsink Module (PHM)
Removing the Processor Heatsink Module (PHM)
Before removing the processor heatsink module (PHM), unplug power cord from the power
outlet.
1. Using a T30 Torx-bit screwdriver, turn the screws on the PHM counterclockwise to
loosen them from the socket, starting with screw marked #4 (in the sequence of 4, 3, 2,
1).
2. After all four screws are removed, wiggle the PHM gently and pull it up to remove it from
the socket.
Note
: To properly remove the processor heatsink module, be sure to loosen and remove the
screws on the PHM in the sequence of 4, 3, 2, 1 as shown below. Wait for the heatsink to cool
down before removing it.
