HP Compaq Presario,Presario 1800-XL1 User Manual page 118

See also
Symptom Problem
You forgot your Your Notebook will
power-on not start without
password. entering the
power-on password.
Your Notebook Power button on your
will not turn on. Notebook has not
been pressed.
Power plug is not
properly connected
to AC adapter or
wall outlet.
AC adapter is not
properly connected
to back of
your Notebook.
Battery is fully
discharged or
not installed.
Keyboard controller
needs to be reset.
Wall outlet is bad.
Wrong memory
modules were used in
upgrade, or memory
modules were
installed in the
wrong location.
Power
Solution
Take your Notebook to your
local Compaq Authorized
Service Provider.
See the Warranty Statement
for details.
Press the Power
your Notebook.
Reconnect the power plug to
AC adapter and wall outlet.
Reconnect the AC adapter to
the back of your Notebook.
Connect AC adapter to the
back of your Notebook and
a wall outlet or insert a
charged battery.
1. Unplug AC adapter from
back of your Notebook.
2. Remove the battery and
wait 30 seconds.
3. Reinstall AC adapter
and battery.
Test the outlet by connecting
a different electrical device
to outlet.
Contact your Compaq
Authorized Service Provider to
verify the type of memory
modules to use and where to
install them. See the Warranty
Statement for details.
button on