Ok, we've got a new machine that's throwing ECC errors. I've gotten new memory overnighted to me from the manufacturer, and replaced it, oops, not that end of the bank, as their support told me, this end of the bank, as the mobo manual I found online shows (Supermicro). Still throwing errors. Ok, try to get more info.... Last week, I moved /var/log/mcelog to /var/log/mcelog.1, and touched /var/log/mcelog. This week, I tried running mcelog manually, and via /etc/cron.hourly/mcelog, and get *nothing* at all. /var/log/message only screams that there are ECC errors, so I need more data. I've even tried reinstalling mcelog, but no joy. Anyone got any ideas here, how to get it to say something? mark