I initially put together a system with 8 gigs of RAM, a few days ago I ordered another RAM stick (exact same model), installed it and checked only to find out windows is only detecting the original 8 gigs, the other stick IS detected in cpu-z and speccy but not in windows, I tried to boot my pc with only the new stick installed to see if the second ram slot was the problem (it wasn't) but it wont get past a black screen and won't even let me turn off the pc even if holding down the power button for a long time. Should I try to get a refund or is there something I'm missing here?
Edit: Forgot to add only 8GB is showing in BIOS
Edit: Forgot to add only 8GB is showing in BIOS