I'm running this with Corsair XMS 3200. Currently I'm at 150 fsb 3/4 2,6 Volt DDR 400 Cas 2. What I'm trying to acheive is running this stable at 160 fsb DDR 426, but fails after 7 hours in Memtest with 2,7 Volt. The next stepping on the Voltage in bios is 2,9 Volt, there is no 2,8 Volt option...