I am trying to diagnose a problem with my ASUS A7N8X machine. It has 512 Mb RAM, an AMD XP 2100+ chip, and a Chaintech GForce 4 MX 440 video card in it. The machine runs Debian Linux 3.1r1.
I rarely shut this machine off, as it runs a BOINC client processing both SETI and climateprediction.net files.
Recently, I was having problems with the machine freezing after 1-10 minutes of running. All of a sudden, dead. System logs did not show anything funny, other than the reboot that always followed.
Then one night, I tried to shut it down, and it got into a cycle of reboots, never showing the BIOS. I guessed these were the power supply not sending "power good" messages to the mobo, and being forced to cycle to attempt to get to a "power good" message.
So I bought a new PS, 450 watts and installed it this afternoon.
Interesting: if the rear switch is on, the mobo sports a bright green led showing there is power to it. Press the power on button, and nothing happens. Literally, not even a minor humm, whir or blat.
I hopped on the werb and went through flow chart on hardware problems, and got to a bad switch. Tried swapping it with the reset button, but no dice.
Could the BIOS battery be dead? Could it be something else entirely? Maybe the mobo is dead?