The way I do it, rather than taking a million screenshots of every section, is to do this:
1) Save your preferred OC settings to a profile in the Tools section.
2) Shutdown and clear CMOS.
3) Go back into the Bios. Load the profile. Then go to the Save and Exit option. It will come up with a confirmation screen that lists every difference between the default BIOS settings and the profile you just loaded. Take a screenshot (or just quickly write it down). Note that you may need to scroll down to see them all.
Note that this is on the Rampage V Extreme, but I assume other motherboards would behave similarly. On the RVE, at least, you can then set up each of those settings in the Favorite tab so that you can see them all listed consecutively and tweak them without having to burrow through dozens of menus. The Favorite setup seems to survive clearing CMOS too, just like profiles do, at least it did for me.
Oh, another tip: If you set your system up as UEFI (and if you didn't, you almost certainly should unless your system is ancient), when you clear CMOS, it will set CSM back to enabled as a default. While it is set up as CSM Enabled, you may not be able to load a profile in the bios, at least if you are booting off a PCIe drive like I am. Attempting to do so will just freeze the BIOS. So you may well need to add a step between 2) and 3) above which is "2.5) Set CSM to disabled, save and exit, and reboot back into the BIOS".
