BSOD Often When Playing Some Games?

when playing some games, my computer sometimes becomes distorted and reboots, showing the BSOD. This has generally started happening over the last two months, after I installed a new graphics card. Though previously, I didn't really play PC games, so It's hard to say if that's even the reason. It usually only happens once every few days, and only at some games at that. However, I started playing Tribes yesterday, and every time I play it, I get a blue screen within 10 minutes of play without fail. I've tried to see if there are any correlations between the BSODs and what I'm doing, but there doesn't seem to be. The only unusual thing is how often it happens when playing Tribes, a game that isn't nearly as processor, memory or graphically extensive compared to other games I've played without fault.The error, to my knowledge, has always been the same. With the blue screen stating some Uncorrectable Hardware Error. This is what I believe to be the error code in the Event Viewer.

0x00000124 (0x0000000000000000, 0xfffffa8005047038, 0x00000000b66b4000, 0x0000000000000135)