PSU coil whine when idel, help!!

[hillelslovak]

My rig http:// Ive swapped in two 3tb toshiba hard drives, a Corsair Coolermaster 600w psu bronze, an asrock h170m pro4 mobo, 16 G Skill 2133 mhz ram, intel i5 6600, and an r9 380x 8gb gpu.

Now, I've been hearing a whirring noise from within my pc. I used a stethoscope to isolate where the sound was coming from. It's coming from the psu. It's high pitched, and real annoying. Now, I cant notice it when I am gaming, even when i mute the games. I was thinking if I set my chassis fan to spin faster when idel, that might cover the noise up. However, my system idles at around 27c, and my bios fan settings only ramp up when it hits 30c, so without gaming, the fan never ramps up.

I tried torture testing with OCCT for 90 mins, did not change anything. I cleaned the psu of dust, reseated everything in the pc, still, it happens. In fact, it might even be worse now.

So, do I need to buy a new psu to get rid of this issue?

 

[misteriosly]

Its called coil whine.
Can you tell us more correctly, which model is that PSU ?
Usually coil whine does not indicate that PSU is failing, so if you can bear the sound just leave it at that, else change the PSU.
As long as PSU is a quality one, coil whine isn't much of a problem.
You can actually try fix that coil whine, but i wont recommend it to everyone, specially to ppl that have no knowledge about electronic components and such.
Coil whine usually comes from coils, due to electricity causing different magnetic effects to them, making them vibrate.

You can try to fix it by applying a moment glue on the coil that produces the noise. - TRY AT YOUR OWN RISK!
Of course before you even try to fix it, you should discharge PSU of electricity, by removing power cable and trying to turn ON the computer a few times, so it can consume/dissipate all the electricity stored in caps.

 

[BringerOfTea]

If the coil whine is very noticable, you could perhaps contact Coolmaster, just to be sure maybe have it tested on another PC... if it still whines then you should be eliglbe for a RMA... atleast Corsair was as kind as to swap mine...

 

[hillelslovak]

Why would it be whining only when idle? In games I cant hear it. Is there any way to up the voltage a tiny bit when its idle to maybe eliminate this issue?

 

[BringerOfTea]

Might be a power consumption issue... that low power draw makes the coil whine. you could also try another graphics card. or as I said above test to see if the problem persists in another build.

 

[hillelslovak]

Upon further testing, the whine is there, but when my older 3tb hdd is booted up, the coil whine increases. Only that hdd seems to make it increase though. The other 3tb has the OS on it, and the 1.5tb hdd does not producer the whine. How could this be?