Hey Guys, Just have a couple questions for ya, hopefully I can get a couple answers from the techies K Ive been running a P5Q3 Motherboard For awhile now with a Q9550 (Yorkfield) Processor @ 2.83 With 4GB of cm3x2g1600c9dhx Corsair 1600 Ram, and it runs great. Heres the problem, the ram is only running single channel and at 1333 instead of 1600. Ive tried to manually set the ram at 1600 and 9-9-9-24 but the system always BSOD's right at the Windows Loading screen. I have tried all 4 Slots blue and orange and all combinations. I know the ram is good (Memtest) and I know the Orange slots are for the High Density High Performance ram. Any help would be greatly appreciated. Ill post info as needed if needed.