and I'm carrying over my XFX ATI Radeon HD 6670 videocard from my old computer. So, I got everything hooked up, plugged in the PSU cord, flicked the PSU power switch, everything powered on and then ...

My computer cases internal speaker BEEPS sometimes while I am playing games, such as RTCW and UT. I just got done playing UT online and it beeped 3 times in a half hour... When I play RTCW it beeps ...