Shuttle XPC SH87R6
2 sticks of 4GB crucial ballistixs sport
250 GB Intel SSD
I first started having problems with my computer a couple months after I built it. After trouble shooting I determined that one of my ram sticks(I used to have 3) had gone bad. I removed the offending stick and all was well, except, I've noticed strange happenings. It's been months since then, but every once in awhile I'll notice that my computer has turned itself off(I assume from BSoD), and once it BSoDed while I was sitting in front of it. I turned it back on and it was fine.
This morning(9-28-15) I noticed it had turned itself off, when I tried to turn it back on it POSTed and gave me a black screen with the text message "Operating System Not Found" or "Missing Operating system".
I left for school, got back around 6, and when I plugged in a different hard drive from an external USB port, a preliminary to opening the case and yanking the current HD, it booted up from the standard drive no problem.
I have no clue what's going on, but would like to fix it to prevent possible damage to my system. If anyone has encountered this themselves, or knows what is going on, any help would be greatly appreciated.