I ran fptwin64.exe from Command Prompt (Admin). Flash was successful.
I went into the BIOS on restart, Restore Defaults and then set everything the same as R21. For memory, I had to, first, set the Memory Frequency Limiter to 1867 and then switch on XMP Profile 1 for my RAM timing to show up correctly.
The BIOS flash blew away Windows Boot Manager, bootmgr.exe, information.
I had to fix my bootmgr again using the my Win8 install disk, repair mode, and command prompt.
bootrec /fixmbr
bootrec /fixboot
It booting back into Windows just fine after that.
Edit1:
EIST is still throwing Kernal-Processor-Power errors for every core on startup when the CPU is OCed.
Disabling EIST in BIOS will disable overclocking abilities.
Edit2:
I have been able to lower CPU VCore from 1.4v to 1.375v and keep 4.5GHz stable.