PSU Whistling

Rowan88 · 18 Aug 2014 at 18:14

Hi,

I was hearing a slight whistling noise coming from my PC the last couple of days. I decided to open it today and check the fans but it's not coming from them.

I have a feeling that it is my PSU making the whistling noise.

Is there anyway to fix this?

Thanks

deano-5 · 18 Aug 2014 at 18:23

You can turn on the psu without your pc by shorting 2 pins but you will have google that

Rowan88 · 18 Aug 2014 at 18:29

Surely that won't fix the problem.

It doesn't do it all the time only seems to be when I am using resources (gaming, converting videos etc).

deano-5 · 18 Aug 2014 at 18:35

I was thinking you may hear it and rule it out

Superpatsy · 18 Aug 2014 at 18:36

Rowan88 said:
Surely that won't fix the problem.

.

It'll confirm that it is the PSU making the noise. if it is that.

5960xNvidiaGamer · 18 Aug 2014 at 18:36

Sound like coil whine, I had it on an old Corsair Hx850 so I rma'd it.

deano-5 · 18 Aug 2014 at 18:37

Evga_Gamer said:
Sound like coil whine, I had it on an old Corsair Hx850 so I rma'd it.

Change the fans?

malcolm · 18 Aug 2014 at 18:52

Rowan88 said:
Hi,

I was hearing a slight whistling noise coming from my PC the last couple of days. I decided to open it today and check the fans but it's not coming from them.

I have a feeling that it is my PSU making the whistling noise.

Is there anyway to fix this?

Thanks

I had a gfx card that did this many years ago.

5960xNvidiaGamer · 18 Aug 2014 at 20:02

deano-5 said:
Change the fans?

Why when I knew I would get a brand new unit? Not only that but I got the upgraded version

wazza300 · 18 Aug 2014 at 20:23

if your using the gpu to help with converting it could be the gpu (same with high fps in game menu's)

main culprits for coil whine are psu/gpu/mb

certain combo's of makes/models produce the whine more/less

Purgatory · 18 Aug 2014 at 21:04

If the system is pretty new it's most likely coil whine from the PSU, GPU or Motherboard. Also does it only do it when under high load or under high FPS on a game screen ?

Also to note electrolytic capacitors when they leak can whistle, but that either comes with aging capacitors or faulty capacitors. So maybe look at the electrolytic capacitors on the PSU, GPU and Motherboard and look for signs of bulging or leaking.

Ploppy2k3 · 19 Aug 2014 at 15:07

I get coil whine form my HX1050 PSU and its done it since day one. It only does it under load though and if gaming for a while will eventually shut up. I should have RMA'd the PSU years ago but hey that would have interfered with my gaming time.

Alienfish360 · 19 Aug 2014 at 15:57

Coil whine, or capacitors dieing.

How old is it?

jh30uk · 23 Aug 2014 at 02:46

Whistling is a leaking CAP, may be swollen and crusty on top where weak spot is (so they burst there instead of blowing all over the place).

The Green Polo Mints with the copper wrapped around then are COILS (moden ones can be instead a little black housing but still the same), they make a rattling/buzzing sound that can get more freq