2009/1/29 Les Mikesell <lesmikesell at gmail.com>: > 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. > I'm beginning to think that way. The smartctl long test has completed without errors. I think that I'll dig out the specs for the mobo/cpu tonight, then buy a new PSU and CPU fan in the morning. Anne