HP xw3400 HP xw3400 Workstation - Service and Technical Reference Guide - Page 97

Processor, Secure the locking lever. If reusing the existing heatsink

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Processor 1. Prepare the workstation for disassembly (Preparation for disassembly on page 59). 2. Remove the access panel (Access panel on page 61). 3. Disconnect the heatsink control cable from the system board and remove the heatsink (Heatsink on page 86). 4. Rotate the locking lever to its full open position (1). 5. Raise and rotate the microprocessor retainer to its fully open position (2). 6. Carefully lift the processor from the socket (3). CAUTION: Do NOT handle the pins in the processor socket. These pins are very fragile and handling them could cause irreparable damage. Once pins are damaged it may be necessary to replace the system board. The heatsink must be installed within 24 hours of installing the processor to prevent damage to the processor's solder connections. To install a new processor: 1. Place the processor in its socket and close the retainer. 2. Secure the locking lever. If reusing the existing heatsink, go to step 3. If using a new heatsink, go to step 6. 3. If reusing the existing heatsink, clean the bottom of the heatsink with the alcohol pad provided in the spares kit. CAUTION: Before reinstalling the heatsink you must clean the top of the processor and the bottom of the heatsink with an alcohol pad supplied in the spares kit. After the alcohol has evaporated, apply thermal grease to the top of the processor from the syringe supplied in the spares kit. 4. Apply the thermal grease provided in the spares kit to the top of the processor and install the heatsink atop the processor. ENWW Processor 87

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Processor
1
.
Prepare the workstation for disassembly (
Preparation for disassembly
on page
59
).
2
.
Remove the access panel (
Access panel
on page
61
).
3
.
Disconnect the heatsink control cable from the system board and remove the heatsink (
Heatsink
on page
86
).
4
.
Rotate the locking lever to its full open position (1).
5
.
Raise and rotate the microprocessor retainer to its fully open position (2).
6
.
Carefully lift the processor from the socket (3).
CAUTION:
Do NOT handle the pins in the processor socket. These pins are very fragile and
handling them could cause irreparable damage. Once pins are damaged it may be necessary to
replace the system board.
The heatsink must be installed within 24 hours of installing the processor to prevent damage to the
processor’s solder connections.
To install a new processor:
1
.
Place the processor in its socket and close the retainer.
2
.
Secure the locking lever. If reusing the existing heatsink, go to step 3. If using a new heatsink, go to
step 6.
3
.
If reusing the existing heatsink, clean the bottom of the heatsink with the alcohol pad provided in the
spares kit.
CAUTION:
Before reinstalling the heatsink you must clean the top of the processor and the bottom
of the heatsink with an alcohol pad supplied in the spares kit. After the alcohol has evaporated,
apply thermal grease to the top of the processor from the syringe supplied in the spares kit.
4
.
Apply the thermal grease provided in the spares kit to the top of the processor and install the heatsink
atop the processor.
ENWW
Processor
87