crwdns2934241:0crwdne2934241:0 Gigid

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Mac Pro 3.1 not starting

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I realized that it start up and works perfect, but after working I switch it off and I switch on back it doesn’t start, I have to wait minutes

here the behaviour I recorded https://www.youtube.com/watch?v=Q9Za26LXaqg

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Mac Pro First Generation

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open