Hi, i have 2x 860 evo's in my build one of them which has all of my games and stuff works just fine the other does not show up at all. Another issue I ran into when I came home and booted up my PC is it said it did not have a boot drive yet my boot drive should be an m.2 drive. At this time i took out the drive that i thought did not work hoping to maybe get a different one. I replugged in my SSD and it booted almost like it was booting from the SSD that did not work. eny ways to check if the drive works or if i am booting from that drive and not my m.2 thanks.