Thank you. I used the XMP Profile and rebooted. Now it says DRAM Frequency: 1866 (1:7) and the Advanced Settings say 8-9-9-24. Now that it's set correctly do I need to do anything to other settings given my RAM's 1866 speed and my mobo only supporting up to 1600. (From Newegg: 2933+(OC)/2800(OC)/2400(OC)/2133(OC)/1866(OC)/1600/1333/1066)
(And on a tangential note about the UEFI, I also accidentally clicked Secure Backup UEFI, which triggered this automatic process I couldn't cancel. The manual says "Whenever one of the ROM images are corrupted or outdated, switch to the other flash ROM and execute Secure Backup UEFI to duplicate the current working ROM image to the secondary flash ROM. Since I never used another UEFI ROM, can I safely say that I didn't accidentally create a back up of it on say, my SSD?)
I don't know anything about Secure Backup, but as far as the XMP profile goes you're done. Keep an eye out for unexpected freezes and BSODs. If you do experience some, consider bumping the IMC voltage up a little bit. If you don't experience any, then you're good to go!