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Weird sound when moving mouse

I wouldn't be so certain it is the PSU. Yes, PSU is supposed to channel electrical noise away from the system via the ground but I've encountered computer cases that, when touching metal, would produce a tone in the speakers. This particular case when through many power supplies and motherboards in its life span and, to this day, still has noisy 3.5mm audio.


If you haven't tried it already, go through the sound devices and mute everything then turn them back on one at a time until you find the culprit. If you hear it when everything is muted, it's interference. If you notice it change on one object, leave it unmuted and mute everything else to see if that is the sole source.

It could be coming from your motherboard, your case, your power supply, your speakers, your audio device, or all of the above.

I repeat, it could be a shoddy computer case.

Also, make sure the outlet your computer is plugged into is correctly wired (+ is +, - is -, and ground is grounded). I have a tester that uses lights for this. Not sure of a good way to test this without it. If the ground is dirty, all kinds of issues can crop up including audible sound.
 
Ha!
I decided to disassemble the PC to pieces (it was due for complete cleaning since 2012 anyway), pulled my old backup Enermax MODU82+ out, and...
it's the freaking motherboard!

I knew I was done with Gigabyte before (after being a faithful user and builder since 2003), and I am absolutely sure now. Piece of shit.

Good thing is I don't need to waste money I need for my guns on a PSU though :) And I will be upgrading to Kaby Lake in several months anyway, so the problem will hopefully go away then.
 
Can you mute the motherboard mic/outs and use a card? Or better yet, an external USB DAC/AMP? If muting doesn't work, that is bad.
 
The thing is the noise is not coming from the speakers. I did beleive it did, but it can be heard even if I completely unplug the amplifier from the sound card. Something physically on the mb is creating the buzz.
 
Let me get this straight, if you unplug the speakers from power and from the system, you still hear it? If yes, it has to be coming from somewhere on the motherboard itself. Have you tried using your ears to locate the source? I'd focus on the system speaker (black little cylinder with a tiny hole in the center) and capacitors.
 
use a piece of tube in your ear....hosepipe or similar. You can locate sounds very accurately.

images
 
FordGT90Concept said:
If yes, it has to be coming from somewhere on the motherboard itself.
Click to expand...
I don't want to sound like a dick, but NO SHIT! That's exactly what I wrote in my post.
YES, it is caused by the motherboard, and YES, the motherboard itself (some of its components) is creating the buzzing. I had all the main components plugged together on the floor, so I did have my ears close enough.
 
1st reaction : cat is chasing the mouse which scream for help :laugh:

now back on topic; had once similar issue with an old mb... and noise was coming from mb... don't know what mouse u have; if usb one try to connect to other usb port (internal also); mb has ps2 port also give a try if available mouseee :)
 
Changing mice or switching USB ports makes no difference. It must be some of the capacitors on the board.
 
Octopuss said:
I don't want to sound like a dick, but NO SHIT! That's exactly what I wrote in my post.
YES, it is caused by the motherboard, and YES, the motherboard itself (some of its components) is creating the buzzing. I had all the main components plugged together on the floor, so I did have my ears close enough.
Click to expand...
No need to get offensive when people are trying to help.
 
Well I allready told from where the sound goes. @Mussels too... case closed already a while ago.

Change the board, get some with more beefy and complex VRM section.
 
Batou1986 said:
Its shitty onboard sound picking up interference from the USB, attaching shielding to the board does nothing if the interference is coming from the board.
The only thing you can do is stop using onboard or
Didn't read:slap:

try changing the polling rate of the mouse.
Click to expand...

Thank you man! For me setting the polling rate canceled the noise, but i am not sure if it will affect my gaming experience. From 1000 to 250 polling .. Thank you!
 
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