> > Is the system in production or can you take some time to pull all cards and > memory, and test by slowly adding parts? > > If I remember correctly NMI's can only be generated by hardware. > Scott, The only card I added was the digium card. It has been removed and the NMI's still were increasing. I didnt know memory could cause an NMI... What do you suggest taking out some of the RAM, booting up and checking it, then swapping the RAM and boot up again? Jerry