Re: ASRock FM2A85X Extreme6 FM2 AMD A85X (Hudson D4) will not boot at all
Well, going by the MB illustration and the ATX12V note further down the manual it appears the 4pin should be plugged into the lower 4 holes, the 4 nearest the cpu.
My guess is you're butting heads with the memory you have there. Do you get any better results using one stick in A2 or B2?
Mine: ASRock Z77 Extreme6, i7-3770K, 16GB Samsung MV-3V4G3D/US, SeaSonic X-750 Gold, On-die HD 4000, Corsair H80i, Antec Spot Cool, Fractal Design R4 Black Pearl w/Window
Hers: ASRock 990FX Extreme4, FX-8150, 32GB AMD/Patriot AE316G1601U2K, SeaSonic X-750 Gold, Asus HD7770-2GD5, Corsair H80i, Antec Spot Cool, Fractal Design R4 Black Pearl w/Window
Server: Gigabyte GA-990FXA-UD5, FX-4170, 32GB AMD/Patriot AE316G1601U2K, Enermax ELT500AWT, IBM ServeRAID M1015, Sapphire Ultimate HD 4670, Norco RPC-470