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S
P
ERVICE
ROCEDURES
T
CPU
O REPLACE A
COOLING ASSEMBLY
This procedure assumes that you have installed the CPU in the motherboard CPU
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socket, as described in
1. Prepare the surfaces of the CPU and CPU cooling assembly for proper thermal conduction:
• If you removed the original CPU cooling assembly from the motherboard in order to
install it on a new motherboard, first remove all thermal compound residue from the
surface of each CPU and the base of each heatsink. (Use the flat edge of a non-conductive
tool to scrape off the residue, and a lint-free cloth moistened with alcohol to clean the base
of the heatsink.) Then apply fresh thermal compound to the surface of each CPU using
the applicator provided with the new motherboard.
• If you are installing a new CPU cooling assembly, make sure that fresh thermal compound
is present on the base of the new heatsink. New cooling assemblies ship with thermal
compound preapplied to the base of the heatsink.
2. Place the cooling assembly on the CPU (see
Align the four mounting screws in the cooling assembly with the four mounting holes in the
motherboard. Make sure that the thermal compound on the base of the assembly completely
covers the CPU chip. Incorrect installation could cause the CPU to overheat.
3. Tighten the four screws to secure the cooling assembly to the motherboard and motherboard
tray.
To avoid flexing and possibly damaging the motherboard, partially tighten each screw before
you tighten any one screw completely.
4. Connect the CPU fan cable to its designated connector on the motherboard (see
5. If you installed a new CPU, clear the CMOS (see
You must clear the CMOS after installing a new CPU to ensure compatibility between the
new component and previous settings stored in the BIOS.
Be sure to remove the power cable from the imagePRESS Server before clearing the
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CMOS.
• Remove the battery (see
• Wait two minutes to allow the motherboard electrical components to fully discharge.
• Reinstall the battery (see
6. Reassemble the imagePRESS Server and verify its functionality (see
7. If you installed a new CPU and cleared the CMOS, configure the time and date in Setup.
For more information, see Configuration and Setup on the User Documentation CD.
page
105.
Figure 35 on page
page
page
97).
page
97).
104).
98).
page
130).
106
page
76).
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