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Boot up After Power Supply Change

957 Views 1 Reply 2 Participants Last post by  SpywareDr
I have a Gateway Desk Top running Windows XP, I recently changed out power supply with an Identical one, PC will not boot up and fans run at high speed, fans don't go to slower speed at all. (I assume this is because pc won't boot up). I have checked all connections multiple times and still the same.
Any and all help would be greatly appreciated.
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What I'd do is take it back down to bare bones out on a table. Nothing but
  • motherboard (on a non-conductive surface)
  • CPU (w/heatsink & fan)
  • RAM
  • PSU
  • video (including monitor)
  • keyboard and mouse

Now see if it will boot into the BIOS/UEFI. If not, try a different PSU and/or RAM. Once you do get into the BIOS/UEFI reset it to factory defaults.

Now power down, hook up your drive with Windows on it and try the same, (exercise it, web, games, whatever), and leave it running overnight.

If it's fine the next morning, power down and reassemble everything back in the case. As you continue beyond the bare minimum though, only add one or two pieces of hardware at a time and then test to make sure what was added isn't causing problems. You get the idea ...
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