I wouldn't be surprised. The IMC in my i7 920 is completely arse. As I was outling a couple of pages back, I simply cannot boot above 185 BCLK no matter what I do. On top of that, running the OCZ 1866 HPC Reapers, I've noticed that the volts required to clock the RAM to 1,800 are ridiculous. I can boot, Prime, HyperPI and IBT at 180 BCLK with the 8* memory multi for 1,440 mem speed with vCore at 1.31 and vTT at 1.29. By simply raising the memory multi to 10* for 1,800 mem speed, my board will not even boot with those volts, and full stability requires vCore at 1.4V and vTT at 1.39V.