2
.
Remove the memory module
(2)
by pulling the module away from the socket at an angle.
NOTE:
Memory modules are designed with a notch
(3)
to prevent incorrect installation into the
memory module socket.
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 41
).
5
.
Remove the memory/WLAN module compartment cover (see
Expansion memory module
on page 49
).
6
.
Release the keyboard (see
Keyboard on page 56
).
Remove the RTC battery:
Component replacement procedures 59