My raid bios is reorted as 4.81, i am on bios F6 and no newer bioses are available for my board {to my knowledge}. As stated previously i have tried making versions using Nlite using just about every driver package i can find, the machine will pick up the drivers so no boot disk is required, but it allways crashes at the end, i can boot into safe mode {after it halts at actpl stage}, but no amount of different driver installs will solve it, so i am left with a machine that only works in safe mode, not very usefull. The fact that i can load XP32 in same config perfectly; leads me to conclusion that its not faulty board or components but a driver / XP64 issue. That though to me isnt of great help cos i am not trained in how to make my own working drivers, i paid microsoft, nvidia and gigabyte to do that, and it appears to me that somewhere in that chain is someone severely incompetent . We shouldn't have to be having this thread in the 1st place if they had done their homework correctly. So anyway i am no nearer a resolution, must be nice for the guys that solved the issue for their machines. I am not 1 of them ufortuanately.