When it first surfaced that some triple-core and dual-core AMD Phenom series processors could make their disabled cores available under special circumstances thanks to shoddy BIOS-coding associated with the Advanced Clock Calibration (ACC), the anomaly quickly transformed into a potential selling-point for AMD processors, that with the right motherboard, a cheaper AMD processor could be unlocked into a significantly powerful processor for the price. Although AMD made noise calling motherboard vendors to quickly isolate and fix the issue, months on, it hasn't been fixed even with AMD's newest desktop platform based on the AMD 785G+SB710 chipset. An almost deliberate precedent, one we can't have problem with.

Chinese website Coolaler.com has learned that MSI's newest AMD 785G motherboard, the 785GM-E65, can not only unlock the two disabled cores on the Phenom II X2 550, but also provide reasonable overclocking stability for the processor. Coolaler used a retail Phenom II X2 550 on the new motherboard, and simply set the ACC feature in the BIOS setup to "auto" (which enables it from the BIOS end). The system booted with all physical cores on the processor enabled, and allowed overclocking it to 3.609 GHz (18 x 200 MHz, 1.344 V). The chip was subjected to full-load using two instances of Orthos to test its stability, to which it emerged fairly stable.


Source: Coolaler