Before, and even when I did increase voltages to try and improve stability at stock settings, I only bumped them up to 1.35v, which is perfectly safe for E-Die ram and a 3700Xs IMC. I didn't push the ram or the CPU IMC at all, it was faulty from the factory.
The CPU was definitely seated correctly. I tried reseating it multiple times, with different coolers and mounting pressures and the issues still occured. There was no damage to any of the pins, I guess I just got unlucky.
wonder if one of your CPU pins are not seated correctly?
Oh ... ! Before or after non stock voltages? Faulty CPUs such as this are very rare indeed.
My CPU wouldn't even run ram at 2133mhz stable at stock voltage with QVL ram. And considering my CPU died completely, I wasn't "lucky" to get a replacement.