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6 Removal and replacement
procedures for Authorized Service
Provider parts
CAUTION: Components described in this chapter should only be accessed by an authorized service
provider. Accessing these parts can damage the computer or void the warranty.
Component replacement procedures
This chapter provides removal and replacement procedures for Authorized Service Provider only parts.
There are as many as 94 screws that must be removed, replaced, and/or loosened when servicing the
computer. Make special note of each screw size and location during removal and replacement.
RTC battery
Description Spare part number
For use only on computer models equipped with an AMD processor 651948-001
For use only on computer models equipped with an Intel processor 718440-001
Before removing the RTC battery, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery (see
Battery on page 43).
5. Remove the service cover (see
Solid-state drive on page 44).
Remove the RTC battery:
52 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts