I bought this mobo from Intel - DX48BT2 on a Q9450 quad proc. Besides the imposibility for overclocking .. which is not the main subject, this mobo doesn't recognize the real frequency of the memory modules. I installed two modules 2x1GB 1333.. but the BIOS recognize them on auto at 1066. When i force the frequency to 1333 .. the bios calculates it's speed at 1334 .. and after reboot it stalks at a error message from bios.
I know this mobo is not for overclockers but at least i want it to work at full throotle on it's default values.