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Kujen

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  1. It’s the same with UPS, straight to wall, or surge protector. I mentioned the UPS because the way the PC suddenly turned off looked just like a power outage, no blue screen, but there wasn’t a power outage.
  2. I’ve tried with a GTX 780 and now a 1070 Ti with no difference. Unfortunately I don’t have another PC to try the PSU in, nor another PSU to try in my PC. Regarding coil whine vs buzzing, which do you think it sounds like in the video? I’ve done multiple recordings like that, to try and pinpoint which component is causing the noise and it’s definitely coming from the PSU. I’ve read a few other threads with similar noises. I thought it was just a noise I’d have to live with, but I’m concerned now that my PC randomly shut off.
  3. No extension cables. The buzz only occurs during gaming/heavy loads. As soon as I close a game the noise stops. Which is why I’ve been thinking coil whine, but the fact that it has gotten more noticeable over time and the recent shutdown is concerning to me.
  4. The buzzing noise has been occurring since before I added the UPS. It occurs constantly during gaming, but quiet when idle. I’ve tried with two different video cards, and the noise is the same.
  5. My PC suddenly shutdown and restarted itself the other day while I was playing Civilization VI. It was as if there was a power outage, but I have it connected to a UPS. Could it be my PSU? Also, it’s been making a lot of electrical buzzing noise during games for the past year or two, and seems to be getting worse. It is loud enough to hear every time I play a game, unless I use headphones. I assumed it’s annoying but harmless coil whine. Should I RMA? Is it dangerous to use in the mean time? It’s the only PSU I have (HX750 bought around 5 years ago). Here’s a video I made to test whether it was my GPU or PSU making the noise. It gets louder when I move it down to the PSU. [ame] [/ame]
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