cores 0-3 is 4 cores lol, as said above it is core 0, 1, 2, 3 - that's how they're numbered ?
You should have option somewhere to choose which cores to unlock/lock like
option 1 - 2 cores - 0,1
option 2 - 3 cores 0, 1, 2
option 3 - 3 cores 1, 2, 3
option 4 - 4 cores 0, 1, 2, 3
Or something in these lines, or just say 4 cores or all cores.
------------------
Can you post a pic of your BIOS where you have the option to unlock?
You should have option somewhere to choose which cores to unlock/lock like
option 1 - 2 cores - 0,1
option 2 - 3 cores 0, 1, 2
option 3 - 3 cores 1, 2, 3
option 4 - 4 cores 0, 1, 2, 3
Or something in these lines, or just say 4 cores or all cores.
------------------
Can you post a pic of your BIOS where you have the option to unlock?