I had been running my tbird 700 at 800 for about a week (no games or benching), with seti, folding@home, icq, other cpu testers without issue. Yesterday, I tried to get a 3dmark2k score but it would freeze (requiring reset button). It froze at 787, and worked at 750 (only 1 run, didn't have time for more). Does that mean it isn't really stable at 800 or might the problem be elsewhere?