Power Supply Makes Weird Buzzing Noise?

My power supply seems to be making a buzzing noise. It constantly makes it but the sound changes slightly. It also changes when I move the mouse.


Amd Phenom II X4 1100T
ASRock 970 EXTREME4
Case- COOLER MASTER Elite 430 RC-430-KWN1
Video Card-HIS iSilence 4 H667PS1G Radeon HD 6670
CORSAIR Vengeance 8GB (2 x 4GB) 240-Pin DDR3 SDRAM
PSU-CORSAIR Builder Series CX500 V2 500W ATX12V
OS-Windows 7 64-bit
Reply to Uncoordinated
6 answers Last reply
More about power supply makes weird buzzing noise
  1. The CX series has that problem....it's a coil vibrating which makes the high pitch whining noise. It happens on my CX430V2 as well.
    Reply to amuffin
  2. You shouldn't have to put up with it if it's loud enogh to bother you. Hopefully you're still within the exchange period.
    Reply to abekl
  3. It will not harm the power supply as amuffin says, it is just coil whine.

    You may try messing with power saving settings to see if you can stabilize the sound to some extent(but it comes at the cost of power use).

    I have found coil whine when running some power supplies at very low loads.

    If you can RMA it may be worth a shot, the only issue is just like video card or motherboard coil while, it can be hit and miss. This means you may get another unit with the same/worse sound(or if lucky one with none at all. its a hit and miss game).
    Reply to nukemaster
  4. It starts after windows starts booting.
    Reply to Uncoordinated
  5. Best answer selected by uncoordinated.
    Reply to Uncoordinated
  6. Update: lol, I got it replaced through warranty way back. Still works!
    Reply to Uncoordinated
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