I've got 3GB of system memory and an 8800 GT 512mb. My current shared graphics memory is about 1000mb so I have only 2GB available to the system. Is this too much? I think so, because running crisis in high at 1600 x 1050 gets me only about 20 fps average with all of the 2GB being used. I think the system could use some more memory rather than the graphics card. I've checked the BIOS and I can't find an option for this anywhere. Mobo is EVGA 680i LT.