my new combo is a ECS A790GXM-A mainboard and CPU x2 550BE , but i can't unlock these two hidden cores , please help me! THANKS.
HI , download CPU-Z for check revision bios, update it if necessary, then go in setup bios and try with Advanced Clock Calibration (ACC)
Oh, it's no uses . my Bios is up to date (14/7/09) and i've try every thing with ACC . the only way is a Beta Bios which can make these 2 hiden cores become active.THANKS