Problem with Graphics Card, Power Supply or Mother Board?

Problem with Graphics Card, Power Supply or Mother Board? I have a problem that is driving me to the edge. My graphics card periodically looses power for a moment, then comes back. Once in a while it takes much longer, like 5 minutes. I have always tried rebooting during that period, since I don't know then. Black screen, with a no power message across my monitor.
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Total answers/comments: 2

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Guest [Entry]

"It does sound like your graphics card or the fan on the graphics card may be faulty.

This would make sense if the Windows desktop is automatically returning after those few seconds of seeing a blank screen. Can you hear the fan on the graphics card spin down and up again or does it remain on constantly? If so, that would be another indication.

Do you have a spare graphics card that you can test with to confirm this?"

Guest [Entry]

Try to following these interactive Diagnostic Flowsharts. They're great to identify where problems can come. You can click on the rhombuses (identifying a question) to get more information about that question.