Lets see, If you have two of RAM memories, pull out one (from the slot) and turn on computer and try to play and see if it will restart again. If not, then put that one memory back and pull out other one memory...If it doesnt restart then problem is one RAM memory died, so u have to run memtest and if u see one error there it means ur memory is damaged...Good luck
(thats all if u have two RAM memories)