I was watching a YouTube video when all of a sudden the computer shut down. Then I turned it back on and everything seemed normal, but suddenly the image disappeared: a black screen. Since then I can't get an image. I thought it was the graphics card, so I got another identical one, but that didn't help.[br]
I ran the tests.[br]
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OVTMP CPU A -> ok[br]
OVTMP CPU B -> ok[br]
No RAM diode problem...[br]
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When I press the diagnostic button, the 5V diode lights up when the computer is switched off. When I press it again and start the computer, the following LEDs light up:[br]
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PSU[br]
5v[br]
EFI DONE[br]
GPU OK[br]
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But the SYS.PG LED doesn't![br]
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Do you have any idea what's wrong? Could it be the power supply?[br]
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I plug my iPhone in usb and it’s not charging , keyboard no light. I heard the hdd start and all the fans are ok.[br]
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Sincerely[br]
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Mac Pro 5.1 - 2* 2,66ghz - gtx 680 2gb mac Edition and asus flashed gtx 680 (I bought from eBay this week)