Specifications

Remove the internal memory module:
1. Spread the retaining tabs (1) on each side of the memory module slot to release the memory
module. (The edge of the module opposite the slot rises away from the computer.)
2. Remove the memory module (2) by pulling the module away from the slot at an angle.
NOTE: Memory modules are designed with a notch (3) to prevent incorrect installation into the
memory module slot.
Reverse this procedure to install the internal memory module.
RTC battery
NOTE: Removing the RTC battery and leaving it uninstalled for 5 or more minutes causes all
passwords and CMOS settings to be cleared.
Description Spare part number
RTC battery 449137-001
Before removing the 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 52).
5. Remove the memory/WLAN module compartment cover (see
Expansion memory module
on page 60).
6. Release the keyboard (see
Keyboard on page 68).
Component replacement procedures
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