PC Screeching

[Segway]

Hi all,

About a couple of days ago my pc has begun to start screeching whenever it deals with certain graphics. The strange thing is the noise does not appear in games or from watching videos, it's only when booting windows and hovering over an icon (colours fading in and out).

The noise is coming from between the CPU and RAM area of the motherboard and gives the clicking sound like a hard disk (it's definitely not the hard disk). :S

I've already checked out the capacitors, CPU and all the RAM sticks but they don't seem to be the issue.

Does anyone know what this could possibly be? I'm really stuck on this and have searched all over the internet, thanks.

 

[Segway]

I get something similar. Like a very high pitched screech/whine. It seems to happen when I load up a game and start navigating the menu screens. I'm assuming its my graphics card fan. It stops when the card is on load, playing games.

What graphics card are you using, it could be that?

Yes this seems similar to my problem, with the menu screens and icons.

Motherboard: Gigabyte X58A-UD3R
CPU: i7 920
Graphics card: Nvidia GTX 480
OS: Windows 7 Professional 64bit

Something else I noticed is that the overclocking lights which were normally blue on the motherboard next are now just blank, before these were always lit up.

 

[Segway]

Thanks RJC it was exactly that, had to disable the Gigabyte equivalent of speedstep which is the 'CPU EIST Function' and now my overclocking has restored itself too.