Computer Keeps Blue Screening and Restarting

Hi im having a problem, my computer keeps blue screening randomly and then restarting. I had this problem in the past and it was fixed by cleaning my case fans and my CPU heatsink, i did that again this time but it still bluescreens. I have no clue why it's doing this. My biggest guess is that there is too much heat, but i just cleaned out my PC and it's still happening -.-. I dont know what the bluescreen code is because it restarts too fast for me to see but it always says dumping physical memory or something. Plz help!

Sounds like a memory issue.

Is your computer doing a memory dump before the blue screen?

Write down the error code and google/technet it.