3. Detach the RTC battery (2) from the system board. (The RTC battery is attached to the system
board with double-sided tape.)
4. Remove the RTC battery.
Reverse this procedure to install the RTC battery.
Fan/heat sink assembly
NOTE: The fan/heat sink assembly spare part kit includes replacement thermal material.
Replacement thermal material is also available in the Thermal Material Kit, spare part numbers
650277-001 (for use only with computer models equipped with an AMD processor) and 646135-001
(for use only with computer models equipped with an Intel processor).
Description Spare part number
For use only with computer models equipped with an AMD processor 647316-001
For use only with computer models equipped with an Intel Core i5 or i3 processor and a graphics
subsystem with discrete video memory
646182-001
For use only with computer models equipped with an Intel Core i5 or i3 processor and a graphics
subsystem with UMA video memory
646183-001
For use only with computer models equipped with an Intel Pentium processor and a graphics
subsystem with discrete video memory
646180-001
For use only with computer models equipped with an Intel Pentium processor and a graphics
subsystem with UMA video memory
646181-001
For use only with computer models equipped with an Intel Celeron processor and a graphics
subsystem with UMA video memory
646184-001
Component replacement procedures 73
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