GTX 570 SC - Voltage question

I started playing Deus Ex this weekend and have been noticing some weird things going on like crashing and freezing with my EVGA 570 SC. I read around on some forums that for 5xx series cards, the voltages had been set too low and were causing crashes in games like the new Deus Ex or Crysis 2, etc.

I tried setting my voltage to 1050mv in MSI Afterburner, but when I played for about 10 minutes, my fan started going insane. It just kept turning on full power and then turning off, repeat. I checked the temperature and max was at 98c... I'm pretty sure that's way too high. I set it back down to 1000, and the temp was around 85... (also in MSI afterburner, the fan is selected as Auto, maybe I should blast it to full?)

I'm thinking something else is wrong here because I didn't even touch any other settings, so I didn't really overclock it and it shouldn't be increasing in temps so much..

Another thing that bothered me was that I was reading how 570 owners were boosting up to 900mhz and maybe only like 1025v and their stock settings were somewhere around 1023mv default.. my stock settings are 797mhz core and 975 voltage.. and it's supposed to be a SC edition?

Anyway.. I'm not sure what to do right now so I reset the settings back to default so nothing would happen.. any advice would be great! Thanks!


Also, here are my specs:
Intel 2500k Sandy Bridge CPU
2x4gb Patriot 1600mhz RAM
Intel SSD 120gb SDD
MSI P67a-g43 MB
GTX 570 SC (evga)
Old GTX 275 used for dedicated Physx