HP ProLiant DL140, Maintenance And Service Manual

Page: 49 / 112

Contents 49
To remove a processor:
1. Disengage the load lever.
2. Lift up the retention plate to expose the socket body.
3.
Grasp the processor by its edges and carefully lift it out of its socket.
Figure 33
Removing the processor
4.
Place the processor on a static-dissipating work surface or inside an anti-static bag.
To apply thermal grease:
CAUTION: Never touch the bottom of the processor; any contaminant on this side of the processor
could prevent the mounting pads from making contact with the socket.
CAUTION: Applying too little thermal grease will cause a gap between the contact surfaces. This
means that the heat sink is not even in direct contact with the processor, and therefore its capacity
to draw out heat is greatly reduced. Furthermore, applying too much thermal grease could make it
squish out from the sides and go all over the processor pins or to the system board when the heat
sink is installed. The thermal grease may cause electrical shorts that can damage the system.
1. Use the alcohol pad (included in the new processor spare kit) to clean the contact surfaces on
the heat sink and the new processor. Wipe the contact surfaces several times to make sure that
no particles or dust contaminants are evident. Allow the alcohol to evaporate before continuing.
2. Apply 0.5 gram (0.25 ml) of the thermal grease evenly onto the top of the processor.
To install the new processor:
1. Hold the processor by its edges, and then insert it in the socket.
Make sure that the alignment tabs on the socket fit the two notches located on the edge of the
processor. The pins are keyed in such a way that you cannot install the processor in the wrong
orientation without bending the pins.
2. Close the retention plate.
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