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Repair Center:

Symptom

 

Suggestions

 

Likely Causes

 

Comments

Notebook has short

 

Turn down display

 

Battery.

 

Battery capacity often

operating time when

 

brightness.

 

Motherboard.

 

decreases after a year or

on battery.

 

Check timeout settings in

 

 

 

more.

 

 

Power in Control Panel.

 

 

 

 

 

 

Check power management

 

 

 

 

 

 

settings in BIOS Setup. Try

 

 

 

 

 

 

default settings.

 

 

 

 

 

 

Battery gauge might need

 

 

 

 

 

 

calibration. Run HP Battery

 

 

 

 

 

 

Optimizer from Start menu.

 

 

 

 

 

 

Certain applications can

 

 

 

 

 

 

cause excess CPU and

 

 

 

 

 

 

power usage. (User can get

 

 

 

 

 

 

Intel Power Monitor from

 

 

 

 

 

 

www.intel.com and monitor

 

 

 

 

 

 

CPU load.)

 

 

 

 

 

 

When playing DVD movies

 

 

 

 

 

 

on battery power, use Power

 

 

 

 

 

 

Options in Control Panel to

 

 

 

 

 

 

select Portable/Laptop power

 

 

 

 

 

 

scheme.

 

 

 

 

 

 

When using applications with

 

 

 

 

 

 

automatic save feature (such

 

 

 

 

 

 

as MS Word), extend save

 

 

 

 

 

 

time or disable to reduce hard

 

 

 

 

 

 

disk access and power

 

 

 

 

 

 

usage.

 

 

 

 

 

 

PCMCIA card use can affect

 

 

 

 

 

 

battery life. Some PCMCIA

 

 

 

 

 

 

cards draw power even while

 

 

 

 

 

 

not in use.

 

 

 

 

 

 

Heavy modem use can affect

 

 

 

 

 

 

battery operating time.

 

 

 

 

Turns off

 

Battery may be extremely

 

Battery.

 

 

immediately after

 

low. Plug in AC adapter or

 

 

 

 

turning on.

 

insert charged battery

 

 

 

 

Does not run on

 

Check battery and contacts.

 

Battery or contacts.

 

 

battery; empty

 

Try another battery if

 

Motherboard.

 

 

battery indication.

 

available.

 

 

 

 

Beeps repeatedly.

 

Notebook beeps repeatedly

 

Battery.

 

 

 

 

when battery is low. Connect

 

 

 

 

 

 

AC adapter or replace

 

 

 

 

 

 

battery.

 

 

 

 

Battery does not

 

Make sure AC adapter has

 

Battery or contacts.

 

Check battery and AC

charge.

 

correct power rating.

 

AC adapter.

 

adapter.

 

 

Make sure AC adapter is

 

Motherboard.

 

Check heatsink.

 

 

connected properly and

 

Heatsink.

 

 

 

 

battery installed properly.

 

 

 

 

 

 

 

 

 

 

 

Check battery contacts. If

 

 

 

 

 

 

available, try another battery

 

 

 

 

 

 

and AC adapter.

 

 

 

 

 

 

Move notebook away from

 

 

 

 

 

 

any nearby heat source.

 

 

 

 

 

 

Unplug AC adapter and allow

 

 

 

 

 

 

battery to cool. Check for

 

 

 

 

 

 

blocked air vents.

 

 

 

 

3-8

Troubleshooting and Diagnostics

Service Manual