Guess the computer is feeling the winter too

Hi, I have installed Windows 7 home premium 64 bit onto a new hard drive just 2 days ago. And I have installed drivers for the motherboard and video card and sound card as well afterwards. But when I start to work on it the next day, the problems began. I think it started with some IRQL blue screen error, then after would be freezing (this is the everything stopped on the screen and weird constant static sound if you turn speaker on thing right?) ALOT whenever I am running this one game. I thought it might be the graphic card since even when I just left the computer on transferring some files from a hard drive to another one, and come back a few hours later, the monitor would seems to be off (with an orange light) but the computer would still be on, forcing me to reset it. So I went to the nvidia site again and saw they have a new driver last night and updated to that, and everything seems to went smoothly afterwards (no crash and freezing). But when I try to run the game again this morning, 2 minutes into it and bam, froze again .
So I am not really sure what to update anymore now :/

I have included the dxdiag info thing too


PS. just tested out mass effect 2, and it froze after about an hour and half of gameplay, so it seems to be sort of random :/

Update: I took out the sound card and is using the onboard sound, but the problem is still there, still random freezes, and I just got some bsod this morning and updated the minidump with the new one, if anyone have any advice, ANY AT ALL, will be GREATLY appreciated!