How do I know if I have 4g decoding on??

I am going through the open core install guide and im at the step in

where it wants me to turn 4g decoding on in the bios. I cannot find it in the bios. Should I just assume it is off and change the boot argument? gigabyte ga-78lmt-usb3 that is my motherboard if it helps

submitted by /u/robstersgaming
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