On Tue, 8 May 2018 15:23:42 -0000 (UTC), Yes wrote:

When I press the on/off button for the pc on the front of the case, I see
it start to light up but within a fraction of a second, it shuts down is
the best way I can describe it - does not continue to boot up. When I
press the on/off button again, nothing happens.

Disconnect everything you can, apart from the motherboard. If the PSU
still doesn't keep the fans running remove any video cards and try
again.

If it's still failing it's likely to be the PSU. It's showing signs of
shutting off due to an overload and it could be the PSU that's failed.

Good luck.

--
Regards - Rodney Pont
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