O.K, Here is what I know, because I just spent the last half hour booting, change settings, booting, change settings...etc..
On my sig sys:
11*205 gives 3283pr
12*205 gives 3582pr
11*200 gives 3197pr
12*200 gives 3489pr
11*210 gives 3364pr
I did the work, you draw the conclusions.
However, I did notice something interesting:
If I try to go 12*210 the bios recognizes it, but at post, the defaults come up. SiSoftSandra confirms that the rig is running at default 100*11. The same thing happens at 11*212. The Vcore for both tests was at 1.975 and 2.0 respectfully. Does this sound like a power supply issue?