thomascirca Posted August 15, 2009 Share Posted August 15, 2009 Hi, I just got a new 620HX and it seems to be working well. However, it often makes loud, high pitched whiny noises. There doesn't seem to be a pattern to when it does it, although I notice it more when accessing the hard drives. It's two days old- the problem just started today. Could the PSU be going bad? I would hate for it to kill my new system (last one caught on fire due to a lightening strike). Any help would be much appreciated. Thanks! EDIT: Ah crap it's actually that problem that is extensively discussed in the sticky. I disabled C1E and EIST and the problem goes away. HOWEVER, if I do anything GPU intensive (playing games, rendering, etc) the squeal comes back and it was so loud I called a priest to exorcise my computer. Didn't seem to help. I'm using a HIS 4890 if that helps. I've been researching the whole day and can only conclude that it's a mobo or PSU issue. I've never had an issue with Corsair PSU- the things are rock solid. Recommendations? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted August 19, 2009 Corsair Employees Share Posted August 19, 2009 The noise is not normal on our PSUs. Here are the possible causes: connected to an emulated sine wave UPS, bad power feedback from the video card, and of course a faulty PSU. If the system is current hooked up to a UPS, then please try connecting directly to the wall outlet. Is it possible to test the system with a different video card? Link to comment Share on other sites More sharing options...
thomascirca Posted August 20, 2009 Author Share Posted August 20, 2009 I will try using a 4870 and will post results later. I don't have a UPS. What is an emulated sine wave? Link to comment Share on other sites More sharing options...
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