Ok I have an Ultra X-connect 500watt Modular PSU. <--- Rest of components. I also had this issue with my old comp that died. Anyway, under full load it seems (Happens fastest when I start to play WoW, but can play Age of Conan for a long period and it doesn't happen.) the power supply will start to intermittently emit a buzzing electrical sound. It will kinda go on/off for a while withing seconds of it starting. Then after a bit if I don't exit out of the game I'm playing it will turn into a constant buzz. Once I exit the game and let my computer sit idle for about 10-15 minutes it stops making the noise. But once I put it under load it will happen again. As I stated above it did this when I first got it also. Although I didn't put it under full load for over a month as I was working doubles and only used the computer to check email ect for quit awhile. is there no easy way to fix this issue? What can be causing it? The PSU is still under warranty with Ultra it's a 3 year warranty (Forgot to register it within 30days of buying it or it would have been lifetime.). There tech lines are closed on the weekends so I have to wait till monday to even call them. There site also doesn't even list my model anymore ULT33152. So what do you think they will do? Anyone ever try to RMA something to Ultra? I had to RMA a harddrive back to Western Digital a few months back and they sent me the new drive first and basically put a hold on my CC for the amount of the HD. Ultra's site says they do something similar so was thinking of trying to go that route. Any tips ideas ect?