boot up issues

I have been working on the same system for over 3 weeks now. When I originally built it, I was able to boot it and load windows onto it (all be it with a couple of boot-up problems if the system was even slightly jostled). When running a benchmark on it, I noticed only one stick of my RAM was...

I have been having issues with booting into windows majority of the time I keep getting a black screen that reads " Reboot and Select proper Boot device or Insert Boot Media in selected Boot device and press a key " when this happens I reboot my pc and go to my bios to see if my 3 storage...