csrow value is out of range

After a brief power failure, was seeing messages including this error csrow value is out of range on screen over and over.
Searched around and found that it’s caused by bad memory. Luckily there were 4 sticks in there and we can get away without one of them. Shutdown and tried booting up with each stick out until I knew for sure I had the culprit. As soon as it would boot the errors would start, so when that didn’t happen, I knew I was holding the bad guy in my hand. Problem solved, minus 1 gigabyte…