PSU makes a little noise when PC turned off

psd99 · 25 Oct 2008 at 20:35

Is this a potential problem then?

It is like a hissing electrical noise.
When I turn off the PSU from the switch at the back of it the noise goes away.

alex24 · 25 Oct 2008 at 21:02

Has it always been like that? Sometimes PSUs and mobos can make noises like that and it's perfectly normal, so if it's all working properly under load I wouldn't worry too much. You may have to have a closer look to see exactly where it's coming from, might help narrow it down. PSUs sometimes keep the fan running after the machine is shut down to cool, could it be that at all?

psd99 · 25 Oct 2008 at 21:24

I think it has as far as I can remember.

It is a little annoying when trying to sleep but doesn't cause any hardware problems.
I am the kind of geezer that doesn't have an analogue watch/clock in my room

It isn't a fan on the PSU I can't see anything spinning on there I shall look closer but I reckon it is coming from inside the PSU and it aint no fan I can see.

alex24 · 25 Oct 2008 at 21:27

I would expect it's normal then. What PSU do you have? Perhaps someone else on the forums here has a similar issue.

psd99 · 25 Oct 2008 at 21:40

I think it is a silverstone one. Yes perhaps they do.

md99 · 26 Oct 2008 at 00:43

Hiper ones tend to do that before they turn up their toes.