F13k will be flashed tomorrow :).
As far as F13J, i was surprised that the cold boot problem with detecting only 4Gb out of 6 is solved. On same voltages and overclock (24/7 stable settings) with previous BIOS-es I've had 2 GB of ram missing every once in a while until shut down PC and power it again to detect all 6Gb, but with the new BIOS that bug is gone, and I didn't re-suited my CPU or made any changes on the setup.