Before creating this thread, he contacted me with the issue specified.
I’d like to report that no matter if he change failsafe/optimal state for Overclocking Lock to Disabled, or use the modded GRUB to set a new value for the variable, the lock reverts to Enabled state on next reboot.
I’ve also did specify the default value at offset 0xDA in CpuSetup NVRAM storage.
CpuSetup extracted.zip (1.6 KB)
No luck.
After that the board failed to post and the OP had to recover his BIOS. Then no further action was taken.