Narrowed down to a problem with the standby 5V. The MB has an LED which indicates that the standby 5 volt supply is on. This LED flashes when the problem occurs, indicating overcurrent, shutdown, repeat. The two times this has occurred it went away spontaneously (Nothing I was doing can be said to be the cause for the problem going away.) I watched the LED while unplugging back cables (keyboard, mouse, USB, etc) one at a time. Nothing changed the status. Then while doing nothing it suddenly changed--the LED became steady on. Then the thing started fine.
The computer is often completely powered off--no AC to the power cord. Other times it is off with AC on. On the 2nd occurrence it was in the latter state when I attempted to start it. The PS is a 380 watt Antec. I am open to suggestions on how to diagnose this problem. My first though is to measure the standby 5V to see if it is marginal. I have to see where is the safest place to put a probe. -Denis _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
