Heh... probably my R3E has a bad IOH... same OC... 4.4GHz different value.

4.4GHz (Multi 27 x BCLK 164) pass LinX with all RAM.
4.4GHz (Multi 22 x BCKL 200) no success... stop at 3rd pass. Just stop with error, no bsod or hangs...

Same Uncore and QPI Link... in both... grrr...