Is it just my board or is the a4 4000 limited to 4.5ghz? I know its a 50% overclock, but im still at fairly low voltage. Im currently at 150x30, i have seen someone on hwbot with 140x32, but that is still 4.5ghz. When i save 155x30 into the bios, it always goes back to 150x30 in windows. 