Reply to Desktop EM interference in soundcard?

Hello guys
Sho, my main rig is currently broken since i fried the processor in a OCing session with DICE and a bit of ln2 that was a little on the extreme side of things :P

So while i wait for my wallet to get full again and permit me to buy a new lga2011cpu, i have repurposed my old gaming rig (c2d [email protected] , 8gb) as a production one. Put my delta44in, reinstalled cubase and my most used plugins on an empty disk i had laying around, booted perfect, but now i have a problem.

The interference coming from the speakers when the computer is plugged in and turned on is amazingly loud and annoying. I tried uninstalling the delta drivers and had a try with asio4all thru the realtek SC on the mobo, but even this gave the same results (front headphone jack is A LITTLE less loud, but still damn annoying).

Tried removing the graphics card because that could have been the issue (using the integrated gfx on the chipset) but no, both soundcards still produce audible interference.

The psu is a brand new 750w generic one ( worked perfect when the cpu on there was still a p4, so that must not be the issue here), i have dual dvd drives installed and 3 HDs (no raid)
I have installed custom cooling and LED lighting inside the case, but the problem occurs even when that is turned off.

Can anyone help me here? Audio works normally thru both the delta and asio4all+realtek, i mean, latency is good, no dropouts, so it's def. not a driver issue.

Anyone? Thanks

-p