I'm running the following setup:
1x MSI RADEON rx480 Armor OC 4Gb, GDDR5 Hynix
1x Sapphire R9 Nitro Fury 4gb.
Z170A MSI Gaming M5
Anyway, everything was working fine at 50 MH/s, and then I had to flash the MSI one last time to attempt to get 27-28 MH/s.
Now the computer won't post with it plugged in!
How fucked am I? Excuse the french.