GPU/PSU buzz....which to RMA?

[Guitarman0]

I know I have this posted in another thread but that other thread is really in the wrong section and now I have all the details for diagnosis in one post here so.......

I have changed my GPU recently (from a 5850 to another 5850 as I broke the first one) and I have been having some problems with the new one. I have an OCZ ModXStream Pro 700W PSU (so technically more than capable of running my system) and I have noticed when viewing some programs (such as chrome) there is a very quiet but noticeable high pitched beeping (not regular beeps) coming through my speakers. Also, when I launch the spinning cube on ATi Tool (and some other benchmarks/stability testing tools) I get a whining from the PSU and the GPU (is this normal?). But finally, the most anoying is when I launch some games (mostly GPU intensive games such as mafia II) I get a buzz from my GPU, PSU and it comes through my speakers as well (shown in the video below).

Do you guys think this is a problem with the GPU or as the noises are also coming through the PSU is it a definite PSU problem?

Cheers
Ben

For the video make sure you click 720p or you won't hear the buzz from the GPU.

 

[kPATm]

I was getting a PSU buzz on mine for ages then all of a sudden BOOM! PC shuts of and refuses to boot. So it could be your PSU is on its way out. But dont test your PSU in another PC as I did this aswell and the other PC worked fine it obviously didnt need as much juice as mine.