I have an nforce3 mb actually 2.The problem I am having is that the system reboots randomly and when it loads back up a msgbox says the system has recovered from a serious error and when I click on send error report it pops up an IE page that says the malfunction was caused by a driver but it does not tell me which one.I have this same problem on 2 different mbs.I was thinking power supply but I have used 3 different ps and the one that is in there right now is a good one.