HP Pavilion a387x Desktop PC - Manual (Page 147)

upgrading and servicing the pc (2) 139
6 Hook the notches onto the knobs.
7 Press the front cover toward the chassis until it snaps into place.
8 Close the door of the CD holder located on the top of the chassis, if your
computer has one (Chassis II and Chassis III only).
9 Reconnect the power cord and all other cables.
10 Reconnect the modem/telephone cable.
11 Turn on the computer and all peripherals.
12 Install any software drivers supplied by the drive manufacturer.
replacing the battery
A lithium battery on the motherboard provides backup power for the
computer’s timekeeping capability. The battery has an estimated life expectancy
of seven years.
When the battery starts to weaken, the date and time may be incorrect. If the
battery fails, replace it with a CR2032 lithium battery (3 volt, 220mAH rating) or
an equivalent battery.
WARNING: There is danger of explosion if the battery is incorrectly
replaced. Replace only with the same, or equivalent, type of
battery. Discard used batteries according to the manufacturer’s
instructions.
To replace the battery:
1 Turn off the computer and all peripherals.
2 Disconnect the modem/telephone cable.