Hi i was wondering if there was a way to see if there was a way to figure out if my motherboard is causing my graphics cards to coil whine i have tried 8 Different Cards in separate PCI-e slots and keep getting it. i have un-plugged and disabled all audio Tryed multiple power supply and with/without a Surge protector, i have also taken the cards out and ran the same test with onboard graphics and didnt get the sound. I have tryed 2 evga 650 ti boost, 3 evga 760 acx, a msi 7770 and im currently using a r9 270x, they all produce a hissing sound when under load. when ever i run Heaven it gets extremely bad and at the exit screen the Scream at me its so loud and im not sure how or what i can do to test anything else. i dont have any where local to buy a new mobo. and newegg screwed me over on multiple orders can someone please help.