Hi, I have just built a new system with the following KN8 SLI MBO WD Raptor HDD AMD 64 3800 SKT 939 NVIDIA 7950GT PCI E 2GB CORSAIR DDR400 I couldnt get windows to install as I kept getting a BSOD or it would freeze. Messed about with the RAM and it worked but only with 1GB inserted into DIMM2. DUAL Mode doesnt work either. I have tried different RAM (Corsair DDR400 but 512MB) but get the same problems. Also updated the BIOS to the latest one. It seems to me that there may be a problem with the MBO. But Im no expert. Any help or advice would be appreciated. Thanks