Whenever I start up a game I get this buzzing noise coming from my computer. It is quite audible and seemed to be coming from the graphics card area; it typically gets louder when the system load is higher. However I don't think it's a graphics card problem anymore as I recently stepped up to a different graphics card, and the noise is still there. Furthermore the noise can be heard through the front audio panel which leads me to believe it might be something on the motherboard making it.
Current system setup:
Intel q6600 g0
Crucial 2gb pc6400
8800 GTS 512 (g92)
Creative Xtreme gamer
Here is the sound from the case before I stepped up (when I had the 8800 GTS 640):
Here is the sound from the case with the 8800 GTS 512:
And here is the sound directly from the front audio ports (the beeps at the beginning correspond to maximizing/minimizing windows). Note this sound has been amplified so that it's audible at regular volume levels:
I know that the graphics card fan is NOT causing it. I know that the likelyhood that both the GTS 640 and the GTS 512 causing the same noise is slim. So would you think it is a PSU or a motherboard problem?