So I just got done putting my computer together....and...no display:
AsRock 970 Extreme has a Dr. Debug code of 0x08(08) which is:
"North Bridge initialization after microcode loading"
No splash screen at all for boot.
I'm im in doubt it's a motherboard issue, since the codes I'm getting mean the motherboard and processor are working together(code 19) without any RAM or video card, and code 15(no RAM) with video card.