BSOD Playing Battlefield 3 As Well As Games Stops Running?

playing battlefield 3 i've experienced both bsod and the program to stop running. when the bsod occurs the screen blacks out then the video comes back but the image is made out of a bunch of lines like the video split up and moved around. then the bluescreen comes up. (not sure how else to explain how it looks). theres also a deep beap sound that plays sometimes as well.

i've also experienced an issue with other games, most recently europa universalis 3 where the game stops running as well. sometimes the game runs fine without crash and i've played for 3 - 4 hours on two different occasions but the play after only lasts a few minutes. my drivers are all up to date so i don't think they are the issue.just now i ran a program through the action center that i guess looked for solutions to problems and every problem that showed up is a "video hardware error"

wd-20111101-2241-02.dmp
sysdata.xml
werinternalmetadata.xml

my pc specs:

mobo - gigabyte - ga-990fxa-ud5
cpu - amd phenom ii x6 1100t 3.3ghz
ram - 8192 gb g.skill snipers
gpu - amd sapphire hd 6970 2gb
psu - 850w corsair
windows 7 home edition 64x

i read somewhere that audio drivers could cause issues. i have high definition audio as well as the realtek audio driver.i don't know if i should upload those files that the problem report reported so don't know. i've also been formatting videos for Internet and running my cpu at 85% so i don't think its the cpu overheating like i've heard can happen.