RTC battery
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 following components:
a.
Bottom door (see
Bottom door on page 43
).
b.
Hard drive (see
Hard drive on page 46
)
c.
Optical drive (see
Optical drive on page 44
)
d.
WLAN module (see
WLAN/Bluetooth combo card on page 52
)
e.
WWAN module (see
WWAN module on page 50
)
f.
Fan (see
Fan on page 81
)
g.
Heat sink (see
Heat sink on page 83
)
h.
Keyboard (see
Keyboard on page 57
)
i.
Top cover (see
Top cover on page 59
)
j.
System board (see
System board on page 76
)
Remove the RTC battery:
1.
Position the computer upside-down with the front toward you.
2.
Use a screwdriver to loosen the battery from the slot
(1)
.
Component replacement procedures
79
