There are some rumors circulating this morning that it is possible to enable the fourth hidden / disabled core in a triple-core Phenom II X3, by simply enabling Advanced Clock Calibration (ACC) in the system BIOS on motherboards outfitted with SB750 southbridges and AMI BIOS derivatives.So far, a couple of stories have surfaced that claim to have unlocked the fourth core in a triple core processor using ASRock M3A790GXH/128M and Biostar TA790GX motherboards. And in their testing, the processors simply worked