BFG 7600GT OC question

[rapsux321]

I recently Built a new system consisting of

AMD Athlon 64x2 3800+ AM2 proc
BFG geforce 7600gt OC pci-e card
Biostar Tforce 550 mobo
G.skill 1gb DDR2 6400 ram
2x Wd caviar 150gb SATA hd (raid 0)

I was using Nvtweak (formerly coolbits if I recall) And Found optimum settings to be 615 Core 805 Mem clock. (Initial clock on a BFG OC card was 760 core 700 ram mhz =1400mhz The BFG OC version is 780 core 725 mem. ram) I attempted to up the core to 675 with the mem at 775. Nvtweak tested the settings and reported them as stable so I ran 3dmark 06. The base temp of the card is normally about 45-50c. On the last test of 06, DeepFreeze I believe, with the core at 64 Degrees I received a critical error from 3Dmark 06 reporting that the Nvidia display driver had failed, at that point my monitor reverted to windows graphics. (as if there was no card). I restarded comp and the card suffered no damage. I was wondering If I simply pushed my card past its limits or if there was some tweaking I could do to stabilize it at this frequency? Or was it heat? the critical shutdown temp is at 115c though.

 

[rapsux321]

Thanks, And do you by chance know what exactly would have caused the driver to crash because I wasnt receving any artifacting or issues. Im pretty sure coolbits has been renamed to Nvtweak also, with the same functions.

Also, isnt a 115mhz OC ALOT on a 7600gt? (and it could go higher with cooling?)

thanks.