Hoping some of you out there have had this issue or can have fun thinking it through with me. Does this sound asinine? Possible? Or, is it possible that all these RAM sticks are bad? I’ve run Rember tests on it and comes back as A OK. The only thing I can think of is that the way the laptop has been carried, in my camera bag, has caused the logic board to flex over time and caused damage to the RAM module. It’s as if the RAM module has a loose connection to the logic board (I’ve tightened the screws to the RAM module and no change). ) The only thing that gets it to boot again is a physical pushing on the bottom of the case where the RAM lives. When the machine does “panic”, it won’t restart and gives the black screen with the 3 peeps. Since I tried new RAM sticks for the last MBP and it didn’t work, I’m hesitant to do it again. For what it’s worth, I have many sticks of RAM, and I’ve swapped them around and still the same thing occurs. Something I’m doing must be causing this to happen. So I started treating this like an investigation or an epidemiological study. So, I bought another used 2012 MBP, performed the same mods to it, ran like a top for about 6 months and then boom, kernel panic. Bought new RAM (Crucial or OWC), installed, same issues. Researched and found out it was a RAM issue. machine will freeze up - or sometimes restart itself). About a year and a half later, I start seeing kernel panics (crashes. I added 16GB DDR3 from Crucial, swapped out optical and HDD for SSDs.

Purchased a used 2012 MBP back in 2015 when my MBP was stolen.

Physical pressure/movement of RAM brings computer back from not starting up. 6 months later, Computer B displays same behavior. TLDR: x2 2012 era MBP's with aftermarket RAM & SSDs started experiencing kernel panics. I've been thinking about and dealing with this issue for over six months now and I'm stuck.

Smc fan control kernel panic