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Replacing the microprocessor
To replace the microprocessor, do the following:
1. Make sure that the handle used to remove the microprocessor is fully in the
up position. Otherwise the microprocessor pins might be damaged when
installing the microprocessor.
2. Position the microprocessor so that the pins are aligned with the socket and
with the beveled corner in the orientation as shown in Figure 2 on page 36.
3. Lower the handle until it is fully in the down position. This locks the
microprocessor in place.
4.
Note: The cleaning pad and thermal grease are separate FRUs and are not
included with the system board or microprocessor FRUs. These must be
ordered separately and shipped along with the FRUs being replaced.
Remove the cleaning pad from its package that came with the CRU and use
the cleaning pad to wipe the thermal grease from the bottom of the heat sink.
Note: Be sure that all of the thermal grease is removed.
5. If you are replacing the same microprocessor that was removed, use a clean
area of the cleaning pad to wipe the thermal grease from the microprocessor;
then, dispose of the cleaning pad.
6. Use the thermal grease syringe to place 16 uniformly spaced dots of 0.01ML
each on the top of the microprocessor.
Microprocessor
0.01 ML of
thermal grease
Note: 0.01ML is one tick mark on the syringe. If the grease is properly
applied, approximately half (0.22ML) of the grease will remain in the
syringe.
7. Place the heat sink into position on the microprocessor.
8. When tightening the screws that clamp the heat sink, do not overtighten.
Tighten the clamp screws evenly by tightening one side some and then the
other until they are both snug.
9. Install the plastic cover over the heat sink.
10. Continue at Step 21 on page 37.
Replacing internal drives
This section provides information and instructions for removing and replacing
internal drives.
38 Hardware Maintenance Manual