Question about HP Computers & Internet
You may try:
1)open cover take out all exterior devices like cdrom/HD/PCI card/AGPcard then power on, go next if nothing change.
2)open cover see any fan turning when power on , if nothing run, check biger power supply plug pin(Ps-on and 5Vsb)all at 5V are OK, less than 3V or nothing is power supply box damage. change new power box to test. still same trouble go next
2）open cover you can see a LED light on on the motherboard
and check power on button is working well(switch).
3) check all biger capacitor top, any one bulged shows motherboard DC damage and need to repair by PC specialist.
4) nothing change above, you have to change motherboard.
Posted on Dec 21, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
Make sure that there are no objects placed on the keyboard, or
if you have one, the external keyboard. Turn off the computer,
and turn off all attached devices. Turn on the computer first;
then turn on the attached devices.
If an external keyboard is connected, do the following:
v Turn off the computer and disconnect the external keyboard;
then turn on the computer. Make sure that the built-in
keyboard operates correctly. If it does, have the external
Make sure that the external keyboard is connected to the
Please feel free to ask me if you any further questions or concerns.
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