The stepper system is CACAC AC, meaning the PC is derived from the Deneb core and not from the Propus core. The processor was produced in the new first half of May 2010. Shown is an image of a CPU-Z monitor for an Athlon II 445 processor with a 4th core. An unlocked processor is simply referred to in the BIOS as “AMD Phenom (tm) II X4 B45 processor”.