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    GPU, PSU, mobo? What's wrong with my computer?

    Ran Orthos for ~8 hours. System didn't crash. Looped 3dmark for a few hours, nothing. Ran Orthos w/ 3dmark, still nothing...
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    GPU, PSU, mobo? What's wrong with my computer?

    Day 3 was just a test day. I had removed the GPU to avoid the crashes, and was using the old PSU (PSU1) and onboard video, which worked fine. To test the PSU, I installed a different PSU (PSU2) and used onboard video. The system ran fine w/ onboard and PSU2. Then I reinstalled the GPU with PSU2...
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    GPU, PSU, mobo? What's wrong with my computer?

    This is my first post, so I apologize if it's in the wrong section. Here's the deal: Day 1: I left my computer on, idling, and went to work. When I returned 4 hours later, my monitor had no signal and the computer was making an awful whirring noise (like a drive/disc spinning up). I killed...