laptops are very good normally but don't boot up if there is a
device in the USB slot or a CD/DVD in the drive.
If it still
refuses to POST, remove the AC Adapter, remove the battery and remove
the hard drive.
Power the unit up without the hard drive and it
should complete POST and complain that there is no hard drive. If
that doesn't work remove AC adapter, ensure battery is disconnected
and remove hard drive and RAM. Try again. If it still doesn't work,
you have a mother board fault and it needs a service centre to help you out.
If it does work at one of the
options, when you have closed the laptop down, replace the RAM first
and test, then the Hard Drive.
Hope this fixes your problem.
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