Owner of an Athlon 435 and a 3x Asus M487TD EVO (870 Chipset so), I wanted (well I still want to) try to unlock the 4th core (damaged or name, the tests will tell me) from my Athlon so it goes Phenom x4.
After reading various articles, reviews, etc.. I tried, in doing so: in the BIOS, I enabled "Asus Core Unlocker" to "Enabled", and I left the choice of Cores to "Auto".
Here my PC restarts, only CPU-Z I detect a Phenom x4 but with 3 cores, hence my concern.
Trying to enter Manual for selection of cores in the BIOS, 2/3/5/6 were on "Enabled", 4 on DISABLED.
By activating the 2/3/4, the PC refused to boot and force me to change the BIOS settings.