890FXA-GD70 gives me FF code and doesn't post

So bought the parts for a new build.
Was done over the course of 3 months, so by time was ready for assembly return windows had closed.
System would power, fans would spin for a second, motherboard diag leds would show FF

PartsL
890FXA-GD70
FX-8120
Ram - 4gb sticks 1600 cl7 or 4gb sticks 1600 cl9 sticks

Contacted support, issue was bios version, mobo had old version.
Asked around no one had a am3 cpu lying around, so bought one online for $30 (grr)
System came right up with that cpu, flashed bios from usb stick, put in FX 8120 and came right up.

Reading online I see alot of returns and such over this issue, i would think they could find some way to post the system for bios patch without the cpu somehow.

Found this article while troubleshooting, thought it was worth mentioning as a guide for troubleshooting your hardware's install.
http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems