HP Notebook PC - Manual (Page 36)

Troubleshooting and Maintenance
Troubleshooting Your Notebook
If nothing happens, insert the tip of a paper clip into the reset button on the
bottom of the notebook. Then press the power button to turn the notebook
back on.
To avoid lockup problems, avoid pressing
Fn+F5
to switch display devices
while graphic-intensive applications are running. Also avoid turning the
notebook off or putting it into Standby while such applications are running.
Power and battery problems
If the notebook turns off immediately after it turns on
Battery power is probably extremely low. Plug in the AC adapter or insert
a charged battery.
If the notebook keeps beeping
The notebook beeps repeatedly or displays a warning when battery power is low.
Save your work, shut down Windows immediately, and insert a charged battery
or plug in the AC adapter.
If the battery doesn’t charge
Make sure the AC adapter is fully plugged into the power source and the
notebook, and that the light on the adapter is on.
If you’re using a power strip, remove the AC adapter from the power strip
and plug it directly into a wall outlet.
Make sure the battery is fully installed and locked in place.
Make sure you’re using only the AC adapter included with your notebook
(or other approved adapter that meets the power requirements of the
notebook). Do not use a 60-watt, 3.16-amp adapter.
Move the notebook away from any nearby heat source. Unplug the
AC adapter and allow the battery to cool down. If the battery gets too hot,
it will not charge properly.
If available, try another battery and AC adapter.
30 Startup Guide