Simple query regarding my mobo's missing features and my options.

Hello Everyone,
I'm ashamed to admit that before today I thought the only difference between motherboards was the performance, I/O hardware, and utilities...

I'm now trying to overclock my i5 2500k on an ASUS P8Z68-V LE which is not going as well as I hoped, though a lot better than trying to modify the BIOS for my bros DV6709AX notebook lol.

I'm here to ask if it's possible to crack an ASUS BIOS???
Specifically to unlock the PLL Voltage setting as this is the only setting I am missing in order to lower my necessary Vcore.
I'd love to be able to set the LLC manually as well but the PLL Voltage is my main concern.

Here is the the BIOS version from this website which I'm currently running, It would be great is somebody could Inform me just how out of luck I am lol .

Thanks,
WildBill.