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Strange Computer Noise, need help.

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3 replies to this topic

#1 ArmchairArbiter


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Posted 13 August 2016 - 03:49 PM

So I have a strange sound coming from my computer, mainly when I game and it's under stress but not always it seems. I took a recording of it if someone could identify it. I've opened it up and can't pinpoint what it's coming from and don't want to take it all apart if I don't have to. 




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#2 Mac29


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Posted 13 August 2016 - 04:46 PM

It's possible if you don't think it's coming from a case fan or a card fan that the fan inside your PSU is getting wonky. I have that issue w/a new PSU (it's a known problem but I took the chance anyway) and plan to saw open the unit and replace the fan. I can lessen the problem for a while by tilting my case.


Definitely sounds like a fan and those are the only moving parts that sound like that, at least to me.


Hope that helps,



#3 Chris Cosgrove

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Posted 13 August 2016 - 05:59 PM

I agree with Mac29, that definitely sounds like a fan.


If it is a desktop you have it is not a major operation. Take the side off with the computer shut down then see if any of the fans 'waggle' if you play with them (gently!). You probably have at least three fans - one on the CPU; one on the case; and one inside the PSU. There may be more depending on the spec of your computer and case. CPU and case fans are fairly easy to replace, and usually fairly cheap. If it turns out to be the PSU fan you are probably better replacing the PSU. PSU fans are replaceable but require opening up the PSU. This is a job that requires considerable care as potentially lethal voltages can be stored in PSUs for a long time after they are switched off and unplugged. Better to replace.


There is an old trick to better locate the source of the noise. Take the side off the case and start the computer running. Then take a reasonably long screwdriver with a solid handle. Place the tip near each fan in turn and the handle against the side of your head. It does work, honest !


Chris Cosgrove

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#4 Kilroy


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Posted 13 August 2016 - 08:59 PM

It sounds like the fan is hitting a wire, or more accurately a wire is too close to the fan.  Are there fans on the side of the case?  If so that is most likely the issue.  You can pull the side off and see if the noise goes away.

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