@Peen.

As long as you have a D0 cpu in your mobo, you will NEVER get it stable with ANY consistancy.

The DFI UT X58-T3eH8 has a major problem with D0's and has done since the DO's were released. You may well get it Prime stable for 1 run, but as soon as you reboot or shutdown and start up again, it will be unstable.

The instability rears it's head when you get near to or at the rated speed of each divider, that is 1600mhz, 2000mhz and so on. Your only hope of getting consistant stability is to drop to the next divider down, which of course limits your clock.

It's my view that this is a mobo problem, because DFI has known about this for months and has not come up with a bios to fix it. If a new bios could fix it, they would have released one by now.