wow guys. I fixed my problem.
I was getting frusterated, so I restarted my computer and went to bios. I changed my FSB to 220*(usually 210). I saw my VCore, a low 1.675, it worked stable for 210fsb(2310MHz). I moved it too 1.725. So at 2420MHz@1.725 VCore(in bios, mobo overvolts by a bit), i rebooted. And to my surprise, 1 hour of UT2004, and no sound problems!!!
So guys, Put a little more voltage on your chip and see if you get the same results as me