High-pitched tinnitus-like frequency noise coming from PC

TenaarFeiri

Commendable
Apr 25, 2016
1
0
1,510
Hi there!
I'm having a big problem with my computer lately and that's that it makes intermittent high-pitched frequency noises akin to really loud tinnitus, except instead of a constant tone, it's also got this scratching sound to it, like it's being distorted.

This didn't happen at all while my computer was running Kubuntu for a while, but it did happen when I ran Windows 10 on it before then, and it's back now that I did a clean re-install of Windows 10.

I know it's not the speakers, as they are disconnected from the computer and aren't plugged into any power sockets, and I'm actually able to trace the noise to the general area of the motherboard.

The challenge is that it's of a frequency that I, as a 24 year-old, am able to hear. My late 50s father cannot hear the sound, nor does it pick up on any microphones or telephones or anything that records audio, otherwise I would have shown a recording of it so you could hear.

The noise is incredibly obnoxious, and it goes without pause for up to 10-15 seconds, before there are sometimes 5-10 seconds of pause, and then it starts up again. And it repeats like that for up to 6 times in a row -- I've counted.
Then it can go hours or even days of perfect silence before it starts up again. It's really starting to bother me because the sound pierces into my head like a knife every time I hear it, and I am writhing in agony and blurred vision every time it occurs.

The computer I've got is an Acer Aspire TC-220.

I can't just ditch this computer anyway; my financial situation is too tight to simply replace it, and I need this computer for my work.

Has anyone ever encountered anything like this? What could cause the error, why would it be specific to Windows when Kubuntu ran just fine and without causing that noise? I need Windows for the programs I use, so sticking to Kubuntu is unfortunately not an option.
I know I'm fishing, but any ideas and suggestions would be most welcome!


EDIT: Some more information... I tried putting the computer in a different room and connecting it to my screen and peripherals using some pretty long cables, but the noise pierces through the walls pretty easily, even with the doors closed. In this small apartment, I have to step outside of the building for it to be muffled properly -- which as you might imagine makes actually using the computer quite difficult.
 
Solution
First thing i would do is open the side of the case and try to pinpoint the sound. if you cant find it that way i would start with the fans, just press your finger in the middle of the fan and stop it, the PSU you might be able to press on the grill enough to get the fan to stop or just stick something through the grill to stop the blades.

Hopefully it is just a fan making the noise and not coil whine off of one of the parts.

DasHotShot

Honorable
Sounds like one of the components is squealing in agony...

I reckon it is the PSU's fan or something the PSU is supplying power to (which has a fan). If you're PCI s prebuilt you might have a cheap unit with a failing bearing in there that needs replacing.

 
First thing i would do is open the side of the case and try to pinpoint the sound. if you cant find it that way i would start with the fans, just press your finger in the middle of the fan and stop it, the PSU you might be able to press on the grill enough to get the fan to stop or just stick something through the grill to stop the blades.

Hopefully it is just a fan making the noise and not coil whine off of one of the parts.
 
Solution
I also suspect the PSU - either the fan, or the famous "coil whine". It could also be a coil whine on your graphics card.

Why on Windows and not in Linux, you will probably say? I can only guess, and my guess is that Windows 10 uses your graphics hardware more, due to different drivers, which results in increased power draw. This power draw could be exactly the amount the coil in PSU or GPU resonates at.

If you can borrow a cheap graphics card just for test (provided your computer is not under warranty anymore and you can open it), that would help clear things up.

Same applies to the PSU. A different unit, preferably by a decent manufacturer (Seasonic, for example).