Well u have a 7300Gs (not my normal card just waiting for replacement 8800) and I jsut can't find out how too work turbocache. If any of you could point me in the right direction I'd be very happy =)
TurboCache is an automatic feature. You do not need to turn it off or on (nor are you able to). It will team with your mobo and use some of the system RAM when needed. More info on TurboCache can be found at http://www.nvidia.com/page/turbocache.html I hope this helps.