nVidiaLinkBoost technology utilizes the latest technology which boosts the graphics bus speed, enhancing overall system performance. This feature will be enabled automatically when nVidiaNF590SLI Chipset motherboard detects that you have a nVidiaGeForce 7900 GTX VGA card, users do not have to adjust any settings in the BIOS.
In fact, based on Intel chipset specification, when you install FSB800 CPU and two DDR 400 memory modules to enable Dual Channel DDR feature on this MB, PAT will be enabled automatically. But, as you saw the memory performance status of CPU-Z does not detect PAT mode but fast chip select mode. Thus, if you want to make the memory performance status of CPU-Z is enabled, please try to enable the "Fast Chip Select" option manually via BIOS setting later.