It doesnt matter what the cooling is. The fact is that the board is limited at arround 220bclk from BIOS. I tried my CPU a few weeks ago for max bclk with 12x multi and 1/2 cores enabled. Here are the results:
http://valid.canardpc.com/show_oc.php?id=697938
http://valid.canardpc.com/show_oc.php?id=697709
But this is all using eleet. From BIOS 222 is bootable, but when i rise to 223 it ALWAYS boots at default settings...