If you flash your BIOS, it should be fine.
However, folding is terrible on ATI cards. Their top of the line 5870 scores about as much as a 8800...lol.
Seems like my Arctic Silver 5 is burning in. Temps, at 3.6Ghz on Prime95 load, don't cross 50 now. I might be able to push it to 3.8 on the H50. However, I'll need to heck with folding coz it seems folding heats my processor more than Prime95.