Need Help Unlocking 4th Core...

[The Happy Stromboli]

I have a Athlon II X3 Rana 425 and a Biostar TA785GE motherboard. When I simply switch ACC to "auto", my system will not post. Is there anything else I can do to get this 4th core going? The serial on my processor is CACYAC0940MPMW.

 

[Lead Butthead]

Try bumping the voltage slightly and see if that buys you anything.

 

[douglasb]

Try ACC +2 on the core in question, and maybe a slight voltage bump. Hybrid firmware ACC, also....be sure that's what you've selected.