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Old 02-13-2014, 07:41 AM   #1
dniknu
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Linux making my computer hiss/whine ><


I'm not sure what to do here. I finally got around to installing first elementary OS and then mint because I'm interested in messing around with linux. It's been fun so far.

But for god knows why it makes my cpu/psu hiss. I'm pretty sure it's coming from the CPU. It's extremely annoying.

It doesn't happen in windows 7 and never has. Can anyone tell me how to get rid of it? It's very hard to concentrate on learning linux and customizing stuff when hearing it.

Currently i'm uxing mint on its own partition
i5 @ 4.3ghz
8 gigs ram
xi-fi gamer
amd HD 6900

I have tried setting max cstate to 2 by updating grub and rebooting, it didn't work.
 
Old 02-13-2014, 08:06 AM   #2
Ser Olmy
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There are no movable parts inside a CPU, so there's no way the chip itself can generate any kind of noise.

There are, however, a number of switch-mode power regulators inside the PC, and these can produce a high-frequency hissing noise under certain conditions. The PSU contains a few of these regulators, and the other(s) is/are found on the motherboard, in close proximity to the CPU.

When a noise like the one you describe is being emanated from a switch-mode regulator, is usually means the circuit is overloaded or defective. A low-amplitude, continuous, constant-frequency high-piched whine is not uncommon (and not necessarily an indication that something is wrong), but this sounds more like white noise where the frequency is constantly shifting. If you're correct about the sound coming from somewhere near the CPU, it could be due to a bad capacitor on the motherboard. Look for leaks or signs of bulging.

Better power management could be the reason you're not hearing this sound when you're running Windows 7. Try running a demanding game or a CPU benchmark, and chances are you'll hear the same sound.
 
Old 02-13-2014, 08:21 AM   #3
dniknu
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Thanks for the response. Capacitors I can see look fine. To be honest I can't tell exactly where it comes from. I'm easy bothered by sounds due to tinnitus (it sounds just like it!)

The sound goes away when I do anything demanding. Even scrolling interrupts it. It's realllly weird.
 
Old 02-13-2014, 08:36 AM   #4
Ser Olmy
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It could be just a loose wire in one of the (many) coils or chokes, or even one of the transformers inside the PSU. I experienced something similar with an ATX PSU; it was hissing quite loudly when the system was idle.

I'd try replacing the PSU first. Perhaps you could borrow one from another system, just to see if it makes a difference?
 
Old 02-13-2014, 08:38 AM   #5
dniknu
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worth a shot =) i'll keep an eye out for a cheap decent PSU, thanks man
 
  


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