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初代Mac ProはIntel Xeonをベースにしたワークステーションコンピューターです。初代モデルには2006年から2008年のデバイスも含まれます。

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Mac Pro 1,1 got fried by turning it on

Hi,

I have a 2006 Mac Pro, 3ghz Model, and I used it as a file server without a graphics Card.

When I turned it on today - as soon as I pressed the button - I heard a poof (even felt it a little), and the Mac was done…

I opened it up and took a few sniffs, but the mainboard didn‘t seem to smell fried, neither the power supply.

The guy who gave me the Mac also gave me a spare Mainboard with it - the one that got replaced - and so I think that maybe somethings wrong with the power supply. It maybe likes to give out too much, so the mainboards get cooked - but I can’t even say if the spare mainboard is fried - just an assumption.

What do you think, what exactly poofed at that moment and killed the device?

Thank you everyone for your help!

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The main thing I’ve seen fail on this model has been the power supply.

Are you getting any diagnostic lights? If not replace the PSU. here’s how:

Mac Pro First Generation Power Supply Unit Replacement

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No there are no indication lights - so if the mainboard was affected there still would be a light when powering on?

I’ve also red, that for some reason after changing the PSU, I have to use the original install discs that came with the Mac Pro in order to set up the fan speed correctly. Is that true?

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The fan syncing software is supposed to be on the original system installation disk. But I have never had to use it when just replacing the power supply.

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Alex さん、ありがとうございました！
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