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When I turned my computer on this morning, it whirred for five seconds then powered itself off. My brand new computer.
I tried it again. Same thing. Every time.
Crap.
Assuming the motherboard wasn't fried, I could only think of one hypothesis - the power supply wasn't powerful enough. It had been a bit touch and go buying a 400W power supply - the minimum recommendation for my graphics card - but it was a quality PSU and I thought it would be okay. But maybe it wasn't, maybe the power supply was deciding that too much was being asked of it and switching itself off.
Odd that it had been working happily for a couple of weeks already though. Still, that was the only theory I could think of. I could test the theory by swapping the power supply from my old computer. That computer also had a decent unit, but a more powerful 650W one - it would certainly be up to the job.
Unforunately, swapping a power supply in a computer is a big job. Especially if you have gone to great effort when you built the computer to keep the cabling neat.
But I couldn't think of anything else to do, so I took a deep breath and started on the task.
Eventually I had the new PSU swapped out and replaced with the old one. I put the sides on the computer and pressed the button -
same thing.
:cry:
So it wasn't the power supply. In which case, I had no idea what it was. I was faced with the lousy prospect of sending the motherboard back to the manufacturer. I really didn't want to have to do that.
One last thing I tried before I gave up; I reset the CMOS. That is the basic settings the computer remembers, like which drives to boot from, that sort of thing.
It worked.
:o
I wish I'd thought of that first.
:banghead:
I always like to waste a sunday.
:eyes:
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