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2. Remove the memory module (3) by pulling the module away from the slot at an angle.
NOTE: Memory modules are designed with a notch (4) to prevent incorrect insertion.
Reverse this procedure to install the memory module.
RTC battery
Description Spare part number
RTC battery 599516-001
Before removing the real-time clock (RTC) battery, follow these steps:
1. Shut down 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 all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet
and then unplugging the AC adapter from the computer.
4. Remove the battery (see
Battery on page 37).
5. Remove the service access cover (see
Service access cover on page 38).
Remove the RTC battery:
1. Lift the edge (1) of the battery from the system board.
44 Chapter 4 Removal and replacement procedures