Can The Notebook Not Be Turned On - HP Compaq NC4200 Getting Started Manual

Can the Notebook Not Be Turned On?

If an AC adapter light is off and the notebook cannot be turned
on, adequate power might not be available to the notebook.
■
If the notebook is running on battery power or is connected
to an external power source other than an AC outlet, connect
the notebook to an AC outlet using the AC adapter. Make
sure the power cord and AC adapter connections are secure.
■
Verify that the AC outlet is providing adequate power by
plugging another electrical device into the outlet.
When an AC adapter light is on, the notebook is receiving
adequate AC power.
If all power and power/standby lights are on, the notebook is on.
If all power and power/standby lights are off, the notebook is off.
✎
If the notebook can be turned on when connected to external
power but cannot be turned on when running on a battery pack,
recharge the battery pack. For more information about running
the notebook on battery power, refer to the Hardware and
Software Guide.
Getting Started
Troubleshooting
A–3