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Chapter 3: Maintenance and Component Installation
The Processor Heatsink Module (PHM)
After creating the processor carrier assembly, follow the instructions below to mount the
heatsink onto the carrier assembly to form the processor heatsink module (PHM).
Note:
If this is a new heatsink, the thermal grease has been pre-applied. Otherwise, apply
the proper amount of thermal grease to the underside of the heatsink.
1. Turn the heatsink over with the thermal grease facing up. Pay attention to the two
triangle cutouts (A, B) located at the diagonal corners of the heatsink as shown in the
drawing below.
2. Hold the processor carrier assembly upside-down to locate the triangles on the
processor and the carrier, which indicate pin 1.
3. Turn the processor carrier assembly over so that the gold pins are facing up. Locate the
two-pin 1 locations ("A on the processor and "a" on the processor carrier assembly).
4. Align "a" on the processor carrier assembly with the triangular cutout "A" on the heatsink
along with "b", "c", "d" on the processor assembly with "B", "C", "D" on the heatsink.
5. Once properly aligned, place the heatsink on the processor carrier assembly with all
corners matched up, making sure that the four clips are properly securing the heatsink.
Pin1
A
B
C
D
a
b
c
d
