Microprocessor Module: Dell Latitude C840 Service Manual
2 perpendicular screwdriver
3 processor die (do not touch)
b. Use the microprocessor extraction tool to remove the microprocessor module.
Replacing the Microprocessor Module
NOTICE:
If you received a flash BIOS update floppy disk or CD with the replacement
microprocessor, you must update the BIOS after replacing the microprocessor module.
NOTICE:
Proper seating of the microprocessor module does not require
force.
NOTICE:
A microprocessor module that is not properly seated can result in an intermittent
connection and subsequent failures.
1. Align the pin-1 triangle on the microprocessor with the pin-1 triangle in the socket, insert the
microprocessor into the socket, and move the microprocessor around slightly until you feel it
settle into the socket.
When the microprocessor module is correctly seated, all four corners are aligned to the same
height. If one or more corners of the module are higher than the others, the module is not seated
correctly.
NOTICE:
Hold the microprocessor down while turning the cam screw to prevent intermittent
contact between the cam screw and microprocessor (see "
").
2. Tighten the cam screw.
NOTICE:
Do not over- or undertighten the screw. Tighten the screw until the screw indicator
points to the "closed" or "locked" indicator on the socket.
3. Replace the microprocessor thermal-cooling assembly.
Closing the Microprocessor Retaining Clip
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