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To remove the PHM:
The heatsink may be hot after the system has been powered down. Allow the
heatsink to cool down for a few minutes before removing it.
1.
Remove the access panel.
2.
Disconnect the cable of the super-capacitor.
3.
Remove the air duct.
4.
Remove the PHM:
a.
Loosen the four screws securing the PHM to the CPU socket anticlockwise in
the sequence as shown on the heatsink label with a T30 Torx screwdriver.
b.
Push the four lock-in wires inward to unlocked position with both hands
simultaneously.
c.
Gently lift the PHM off the CPU socket.
Figure 4-16 Removing the PHM
Use a protective cover to protect the CPU socket to avoid damaging socket
pins after the PHM has been removed.
The gold pins on the CPU are fragile and can be easily damaged if touched.
During removal and installation, always keep the gold pins side up and DO
NOT touch the pins when processor dedicated insertion/removal tool (CPU
tray) is unavailable.
