ps4 turns off by itself but does not behave like a BLOD

I am having an issue with a ps4 that shuts off after a random period of time playing, it behaves like it could be a BLOD and makes me think its the APU or possibly/unlikely a faulty hard drive. Im attempting to rebuilding its database and completely factory restore it. I'm wondering if anybody has any idea what could cause this ps4 to crash like this but not behave like a BLOD that would keep the ps4 from turning on at all.

I did open it up when I got it to check all of the connections and everything, clean it up, new thermal paste, clean the fan, everything appeared fine. It turned on and would function. But I cant find anybody else that has experienced this kind of crashing