No good reason to immediately suspect motherboard.
Motherboard suggestion was simply wild speculation.
Motherboard power supply controller, or power supply, or power
switch / wire only may be defective - only some potential
suspects. This assumes, as Kony has said, that literally
nothing operates.
So simple to establish integrity of power supply subsystem
faster and without removing anything. But then a most
standard piece of equipment - 3.5 digit multimeter - is
required.
Procedure to isolate failure to power supply, motherboard
controller, or switch is provided in "I think my power supply
is dead" on 5 Feb 2004 in alt.comp.hardware at
http://www.tinyurl.com\2musa
or "Computer doesn't start at all" in alt.comp.hardware on
10 Jan 2004 at
http://tinyurl.com/2t69q
Take seconds to identify reason for failure or to verify
power supply subsystem is fully functional. Or spend hours
swapping components - shotgunning - to eventually stumble on a
solution. Using the multimeter, one also learns how the power
supply subsystem operates. One learns nothing useful by
shotgunning.
If power supply subsystem checks out, then Kony's procedure
moves on to other 'suspects'. Unfortunately those other
'suspects' will look defective if power supply integrity is
not first established; which is why good techs start with an
essential tool - a 3.5 digit multimeter.
Trent is correct. Someone who is A+ certified should not be
asking this question. But too often A+ Techs don't even know
how to use a multimeter. Gene is also (embarrassingly)
correct - the defective power cord / wall receptacle. But
then a 3.5 digit multimeter also may have eliminated that as
reason for failure.
