RAM not recognized

I built this machine back in 2009 and have made as many mods over the years to keep it hanging on, honestly maxing out everywhere area I could. It's still a great machine. One of the pain points has been the RAM so recently I upgraded to 6 sticks of Samsung M378B1G73QH0-CK0 8GB DDR3 1600Mhz...

Specs: GA-78LMT-USB3 and ASRock 970m Pro 3 AMD FX-8350 Adata AD3U1600W8G11-B 8GB x2 EVGA 500w Problem: I've recently decided to swap cases out due to my GPU overheating and shorting from my previous atrocity of airflow in there. However once I rebuilt it and tried to boot there was no display...

I want to know if getting any HDMI cable as long as it fits in my monitor and my gpu is good, my gpu is a gtx 1060 xtreme gaming 6G, I just want to know if it will be enough power: HDMI: Gembird HDMI Male - HDMI Male, v1.4, 1.8m(this is the one I want to buy), does it matter what type of HDMI...