humming/buzzing/frequency noise coming from inside computer

[Jon Petersburg]

There is a buzzing / frequency related noise I believe that is coming from my desktop computer but i cannot pin point where it is. I just built this computer yesterday and the sound seems to leave when i'm doing certain tasks, it's not there when in bios. the sound is very similar to this sound

https://www.youtube.com/watch?v=awHc2Orr3mU

coolermaster 212 evo heat sink
fx-8350
asus motherboard m5A97 R2.0
gtx 660
win 7
8gb corsair veng
250gb samsung evo ssd
600W power supply rosewill.

 

[amigafan]

It could be coil whine (google it), if it happens in games capping frame rate to 60 fps or turning on v-sync might help. If it happens when scrolling web pages in web browser you can disable hardware acceleration in about:config which should stop coil whine in web browser.

 

[Jon Petersburg]

well, it happens when im not doing anything like just staring at my desktop i can hear it

 

[amigafan]

Well if it really is coil whine then that's very unfortunate. I heard sometime ago that some PSUs had coil whine problems. Also gfx card is often the culprit, did you overclock it?

You should open the case and try to pinpoint the component which is whining. For example if it's PSU perhaps you can ask for a replacement.

 

[Karadjgne]

Doubtful that's coil whine, especially from an nvidia card, coil whine is usually associated with Amd cards, since they have entirely different power delivery architecture. What it sounds like to me is something loose, as in the clips holding the fan to the cpu cooler, the slot covers on the back near the i/o plate, reacting to vibrations from a fan or hdd spinning at a certain speed (check those mounting screws too)

 

[Jon Petersburg]

It's not coil whine. it's some kind of frequency or something. I made a video of it but its pretty hard to hear.

https://www.youtube.com/watch?v=nzWLv3Xiz-g&list=UUbD95bU8_f65dH7_NBygOOA

 

[amigafan]

When you put your PC to sleep mode do you hear similar sound in rhythm with power LED blinking?

 

[Jon Petersburg]

yes

 

[amigafan]

That happens to me too. Sounds like it could be capacitor squeal but I really have no idea.