So I got my 2 sticks of 8 GB RAM to work in A2, B2 like I've been told (ASRock AB350 mobo.) Last night, I had finally installed the stick (had one for a year since I built it.) Went to bed, got up, turned on PC, wouldn't reboot. reinstalled RAM in B2, ran fine. It's done this thrice now, where it will use the 16 GB no problem, and upon restarting later on will need reseating in B2 to run. Any ideas?