hi can someone please help changed my crads from 2 8800gtx to 2 9800gtx but when i opne the nvdiai control panel i can not see any were to turn on the sli mode can someone please help
Of both are seated properly and have correct power cables, try updating drivers again. On the new cards, It says on the side of control panel "Set Physx and multi GPU settings" on the first or second division.