I think I ordered the wrong kind of memory for a GA-Z170-HD3P Gigabyte motherboard. All I get is five long beeps when I try and start it and that's indicative of a memory problem. I ensured they're seated correctly but I still get the beeps. So it's back to the drawing board.
Thanks for your recommendations though. I'll let you know what I get.
BTW, when you seated the memory did you push down evenly on both sides and get the "click" when you seated them?