Mayuresh <mayur...@acm.org> wrote: > On Sun, Apr 27, 2014 at 08:14:26AM +0000, Thomas Mueller wrote: > > Shutting down due to overheating sounds like a problem with the CPU > > and fans, or lack of fans, rather than the motherboard as such. > > ... I tried several things to isolate the cause, but never suspected > the CPU. I think I'll give that a try before purchasing a new motherboard.
You might want to verify that the mobo is really overheating using either another OS &/or temperature probes. The NetBSD ACPI temp sensor stuff is known to read bogus critical temp spikes on certain hardware and the default /etc/powerd/scripts have the system shutdown when those are detected. I've got an old HP mini-tower system that that happens to; once I realized there was no over-heating going on I editted /etc/powerd/scripts/sensor_temperature to do nothing for the "critical" case. HTH, jgw