I think my 12gb issue is fixed. Thanks a lot ot Lsdmeasap over at tweak town for the help. This is the thread. After re-seating the CPU everything seems fine. I'm only an hour in to the full 12gb, but everything seems good. For 24/7 clocks so far on Air with 12gb is 24x180 4320mhz, 1800 8-8-8-21-1. I'll post ss later with template and benchmarks. then i'll try higher bclk and compare....