Last I checked Rowhammer is raging uncontrolled in the world, and the only way to fix it is to swap the RAM with something that actually works. I’m not aware of any configurable firmware residing on RAM chips.
Yikes, lol. Way to put my foot in my mouth. For some reason I was thinking it was fixed with software, but that was just a taxing mitigation that only lowered the chance of success. I stand corrected, we do in fact live in that nightmare world.
