Startup Problems - HP Notebook PC Startup Manual

Startup problems

If the notebook doesn't respond when you turn it on
Connect the AC adapter.
Reset the notebook by inserting the tip of a paper clip into the reset button
on the bottom of the notebook. Then press the power button to turn it on.
If the notebook still doesn't respond, remove the battery and AC adapter,
remove any PC Cards, and undock the notebook if docked. Then plug in
the AC adapter again, and reset the notebook using the reset button.
If the notebook won't boot from battery power
Make sure the battery is properly inserted and fully charged. Check
the battery charge by removing it and pressing the pad on the side of
the battery. The lights show the charge level.
If available, try another battery.
Troubleshooting and Maintenance
Troubleshooting Your Notebook
Startup Guide 31