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HX750 making a weird noise

Hey guys. So I just installed a new fan controller and some new fans and my PSU seems to be making a new noise! :o It is a very, very high pitched tone. I can get right next the to back of my computer and hear a high pitched almost squeal-like sound. The only reason I worry is bc is ismply was not doing this before! Any ideas?

p.s. I am only running a single 6950 and an i7 920 so i KNOW there is no way that thing is maxing out. (if that would even cause such a noise. thanks!
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  1. Best answer
    That's coil whine. Google it. Take the fans out and see if the noise persists, then try without the GPU. It's generally harmless, but fans shouldn't cause it.
  2. Best answer selected by fultonloyn.
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