Strange humming/vibrating sound coming from computer.

Codelyoko373

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I sure have bombarded this website with my constant topics about this but this shall be my last one (if anyone actually cares, haha).

Basically, since the start of this month, my computer has been making this sort of humming noise that seems to be constant but changes in volume randomly, sometimes it gets louder and sometimes it gets quieter but it seems to always be there. It's be there for almost an entire month now and I just can't pinpoint the cause (I'm a little too scared to start messing around with my computer truthfully).

The noise is at it's loudest from the front of the computer and when putting my ear next to the opening in my pc case but it's much quieter and even sometimes not possible to hear from other angles. I originally thought it was my hard drive considering the noise is loudest at the front of my case but my hard drive hasn't shown any signs whatsoever of issues, it's almost as good as new and everything seems to work fine. I tried to stress my hard drive out by copying files for example to see if the noise got louder but it didn't.

A friend suggested that it may be my motherboard as apparently sometimes motherboards can make this humming sound that disappears eventually. I've recorded multiple videos of the noise but it's kinda hard to hear due to my CPU fan: https://vimeo.com/217662456 (You can hear the humming/vibrating if you listen very closely). It also sounds very similar to the noise in this video but mine is much louder: https://www.youtube.com/watch?v=x2QyencCA8k.
I've also noticed that the humming noise seems to get louder if I plug a memory stick in to my usb port but I can't confirm that this is constant.

I also thought it may be due to overheating and the fans speeding up for example but all my temps are fine, even when my computer is idle the noise continues... the noise might actually be at it's loudest when my computer is idle.

I also know it's not my PSU considering I can't really hear the noise when putting my ear next to the PSU.

My specs are:
CPU: AMD Radeon A8-6600k
GPU: Geforce GT 730 2GB DDR5
Power Supply: Seasonic S12-II 520W 80+
RAM: 8GB DDR3
Hard Drive: Western Digital WD Green WD20EZRX 2TB

All I really want to know is if it's serious and if I should be worried. Surely if it's been happening for almost a week and hasn't caused any issues then it can't be a massive problem right?
 
Solution
3 YEARS!? Oh my, lmao. Yeah, I understand where you are coming from, dust cleaning is the most tedious part about owning a PC. Infact, dust is actually known to cause static electricity, so that buzzing sound might have been dust particles crackling.

DeepbloodEclipse

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How old are your case fans? Case fans expire in about 1-2 years, at the very most they can go for 3. Depends how often you use your PC. The bearing on the case fans could be worn out and are causing extra vibrations as a result, those vibrations are echoing throughout the case. My current rig is 3 years old, so are all the fans in it, one of my side panel fans and one of my top fans bearings started making awful noise, so I removed them. I'm not gonna bother replacing all the fans since I am building a new rig anyway, but if your fans are not very old, it could be that one of your MOBO screws is loose, some MOBO's have these pressure sensors on them when a screw is loose and wont even activate the PC, but you might have a MOBO without this feature. Try tightening all the screws, your CPU cooler included, also make sure there is no rogue cable obstructing any of your case fans.

After watching your video, another thing might be that your MOBO has faulty circuitry, don't use the USB slot where you connect your mouse and see if you still get it.
 

Codelyoko373

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My case fans would be 3 years old now though I only have one fan that is 3 years old and that's my CPU fan. I believe it may be the fans, the humming seems to get louder and stay louder for longer the longer I leave my computer on. My computer has been on for about 8 hours now and the humming is as loud as I'm pretty sure it gets.

Is this humming something that you think I need to fix right away? Is lose screws for example if that is the case going to damage the components the longer I leave it?
 

DeepbloodEclipse

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Well, if the fans are old, what happened to me was that the top fan I was speaking of earlier, one of the fan blades actually broke off due to how old it was and went flying throughout the inside of the case, I consider myself lucky that nothing was broken besides the fanblade. Just something to consider. You should still go over all the screws you have, and as an experiment, disconnect all your case fans except CPU ofc and activate your PC and see if you still get the noise.
 

Codelyoko373

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My computer doesn't have any case fans. The only fans my computer has is a stock CPU fan and my GPU's fan. Is this a problem I should be aiming to fix right away? or am I able to leave it but just have to deal with the noise?
 

Codelyoko373

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I will test that but first I'm going to clean out my computer and tighten the screws on stuff like my CPU fan, just to be sure.
 

Codelyoko373

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It seems so far that cleaning out the dust from my computer has fixed the humming issue. It may of been because I had never cleaned the dust off of my hard drive in 3 years...
 

DeepbloodEclipse

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3 YEARS!? Oh my, lmao. Yeah, I understand where you are coming from, dust cleaning is the most tedious part about owning a PC. Infact, dust is actually known to cause static electricity, so that buzzing sound might have been dust particles crackling.
 
Solution

Codelyoko373

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Possibly and yea... dust cleaning is very tedious though I always just simply forgot to clean the top of the hard drive, considering it's off to the side.