Have you tried a different power supply? HTH, Jose Jerry W Hughes wrote: > Hello everyone > > I am really at my wits end. I have a PC that kepts on rebooting all by > itself. weather in standby or working on it surfing the web. There is no > warning, it just reboots. I have change the CPU, Fan, Hard Drive, and > Ram - no help I have also remove everything from case to base setup > (mobo,ram. video, HD and Floopy) - NO HELP. Then I removed the MOBO out > and check for something that may be shorting it out, found nothing. I > then replaced it back in the case with insulated washers on the screws. > Still no Help. It looks like the MOBO is bad. Any ideas? The NOSPIN Group provides a monthly newsletter with great tips, information and ideas: NOSPIN-L, The NOSPIN Magazine Visit our web site to signup: http://nospin.com