Would be a bit strange for the RAM to go bad with the CPU settings being altered, but I'll run RAMtest. I believe I did, I'll double check, but I coincidentally altered these settings as we saw a heatwave and it's an older CPU, three years now. Dusted thoroughly and cleaned the heatsink and CPU and reapplied AS5 which needs to cure.
If I have been running it that hot for almost three years without knowing it I may have done in the CPU, that could be it?