On Thu, Jan 29, 2009 at 9:32 AM, Les Mikesell <lesmikesell at gmail.com> wrote: > Anne Wilson wrote: >>> Are the failures power related, or is the system just shutting down on its own? >>> >>> If the latter, I would suspect either a power supply or a processor fan. If >>> the former, maybe you need to invest in an inexpensive UPS. >>> >> I do have a UPS, and it's fully charged. The system is just >> spontaneously rebooting or shutting down. > > My first guesses would be the system power supply or the CPU fan. > > -- > Les Mikesell > lesmikesell at gmail.com Yesterday I had a system shutting down on its own. It would power up and stay on, but I discover that the PSU fans were not spinning. The failing fans explained a warning message at POST indicating that the system was overheating and needed immediate repairs. ~af