I have a PII x3 710 on my MSI 970a-G46 motherboard and I would like to unlock the fourth core to... you know.. increase performance. I have a thermaltake Frio OCK on it, that keeps it at 33c at full load, so I'm pretty sure heat isn't a problem. I went into the bios and enabled core control, but it only showed three cores. Then I went into Control Center on windows and turned OC Genie on manual, restarted my computer and went to "unlock core" but it still showed only 3 cores. Why can't I unlock the fourth? What am I doing wrong?