Bruce, Your hardware list looks pretty generic to me. As for the bus mastering controller, it is very standard. The two ide interfaces under it are child devices. As such either controller is capable of taking advantage of the bus mastering ability. This speeds up disk operations and offloads some processor load. If you write Frank, I am sure he will help you. He is a pretty sharp guy. Looking back over the previous posts, is there any chance we can find out what the error message is before the computer reboots? ======= Kirk Wood Cpt.Kirk at 1tree.net Cluelessness There are no stupid questions, but there are a lot of inquisitive idiots