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3-8 Troubleshooting and Diagnostics HP Omnibook 500
Symptom Call Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Power/Battery
Short battery
operating time.
Turn down the display
brightness.
Check power management
settings in BIOS Setup. Try
the default settings.
Restart the computer, press
F6 when the HP logo
appears, and follow the
instructions that appear
onscreen. This process
calibrates the main battery
and any secondary battery in
the expansion base’s left
module bay, and requires
four to five hours per battery.
You cannot use the computer
during this process.
Some applications can use
excess power. (Users can
get the Intel Power Monitor
from www.intel.com and
monitor CPU load.)
PCMCIA cards can affect
battery life. Some cards draw
power even while not in use.
Heavy modem use can affect
battery operating time.
Battery.
Motherboard.
Battery capacity often
decreases after a year or
more.
Turns off
immediately after
turning on.
Battery may be extremely
low. Plug in the AC adapter,
insert a charged battery (if
undocked), or plug in a
secondary battery (if
docked).
Battery.
Does not run on
battery; empty
battery indication.
Check the battery and
contacts. If one is available,
try another battery.
Battery or contacts.
Motherboard.
Beeps repeatedly. The computer beeps
repeatedly when the battery
is low. Save your work
immediately, shut down
Windows, and insert a
charged battery or plug in the
AC adapter.
Battery.
Computer stops
while swapping
main battery in
Standby mode.
Disable device settings that
use extra power during
Standby (for example, turn
off Windows 2000 Wake On
LAN option).
Shut down or plug in AC
adapter before swapping.
Plug in AC adapter and allow
to stand overnight to
recharge backup battery.
Unplug any USB devices.
Backup battery.