trikat Posted December 7, 2010 Share Posted December 7, 2010 Is it well known that the AX750 (or AX series) whine / buzz mainly under some type of GPU load? I just tested out my new AX750 PSU today and it whines / buzzes more than the HX620 I am trying to replace. The situations where I can reproduce the noise are when I GPU folding @ home (headache whine / squeal), Starcraft 2 (moderate buzzing), furmark (buzzes slightly), Unigine Heaven v2.1 (slight buzzing, but on closing screen a loud squeal). It isn't as bad as the others in Starcraft 2 since I have game sounds, but I always notice it. With the AX750 I get buzzing every time I scroll up and down a webpage. It does not happen on the HX620. Notes: Since I OC my CPU I have all my power saving modes disabled. I also connected my AX750 while leaving it outside of the case. From there it I can pin point it to the PSU and not the graphic card or mobo. I have also been through five graphic cards on the HX620 and it buzzed while powering all of those. (ASUS / MSI 5770 1GB, XFX 4870 1GB, XFX 5850 1GB, XFX 5850 1GB different model). I have also tried plugging the HX620 directly into the wall of my apt and my parent's house, instead of in the UPS. The AX750 is going to be replaced by Newegg since I want to give the same model another go. (Mostly, because I got a great deal on it + a rebate). Link to comment Share on other sites More sharing options...
This topic is now archived and is closed to further replies.