So I've been having some issues with my PC. Initially my PC was shutting down and not rebooting. What I think fixed it was my video card not being fully plugged in to the MB. I broke a latch that keeps it in place when I first built the PC. I've since put a new latch on...and screwed the video card to the back of the case (there were holes for that...i didn't make my own), which secured it. However, it seems that whenever i turn my PC on it's side to and open it up (I turn the PC off first), when I flip it back up the PC will start up, I'll enter my windows password and it shuts down right when it's about to get to the desktop. The PC runs fine when it's on it's side. So the most recent time I turned it on it's side and opened it (to install an SSD), I was about to get to the desktop and it shut down. So I unplugged the vid card, plugged it in and this time when it rebooted it went thru chkdsk. The hard drive is kinda old (5 yrs or so), but I'm not hearing any signs of a failing hard drive. The PC is running fine on it's side right now, but obviously I'd like to put it right side up. Not sure if maybe the video card is still coming loose and maybe I need a new case or MB. Any help is greatly appreciated.