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Dying PSU


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Switched on my main machine this morning, POST screen came on and the beep then everything stopped and started up again. Stopped then started up again. This time it carried on but stalled at the Windows splash screen with the little blue bar stuck in the middle of its travel and the hard drive light on but not doing anything useful.

I pressed the reset and the boot-up procedure started again and stalled at the black "4 options" screen. I selected to start normally and the machine booted up. When the desk top appeared I noted that two programs I had installed on a subsidiary drive were not showing their correct icons and, checking in My Computer I saw that only my "C" drive had been found (there are two other hard drives installed).

Oh!!! (There were some other thoughts that accompanied that but they're not for a family audience)

I shut down and started up again. A similar farce to the one before. In a moment of inspiration, I thought that it might be the PSU not able to give enough "oomph" when it was starting up.

Found a reserve PSU, fitted it and everything is now AOK - better than it's ever been.

Now, the odd thing is that a couple of weeks ago my son replaced the PSU in one of his machines for similar reasons - dying just after startup. I phoned him just now. Both machines that failed were built (by me) consecutively about three years ago to the same spec in identical cases with identical PSUs.

Is this coincidence? Is there a built in time limited self destruct mechanism?

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These two (mine and my son's) are the only two failures I've experienced - so far.

These are two from a batch of six I did when my son was modernising his studio so I'm expecting more to go - hope not though.

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