We have a windows server 2003 machine that has been restarting randomly (now about every 15-30 minutes) for the past few days. It was originally rebooting occasionally then it started rebooting all the time. We ran Microsoft’s memory diagnostics program and the memory passed all tests multiple times. I tried using booting up using the last known good config and no luck. Any ideas as to what we should be checking? This is a very important server so we need to get it resolved asap. Both the primary boot and the boot mirror provide the same results (rebooting every 15-30 minutes). There are no errors in event viewer telling us what may have happened. The system doesn’t go to a blue screen or any error it just goes straight to rebooting itself. I appreciate all assistance in this matter. Thanks.