After running stably for well over 100 days, my net5501-70 died abruptly last night.
The first symptom was no I/O, neither on the network nor on the console. The power, error and disk LEDs started blinking synchronously off and on quite slowly, around one to two blinks per second. I removed the power and let the box rest for a while, and then plugged in the power again. This time there was also no I/O nor console, but the same three LEDs were blinking ferociously, almost lighting up constantly. I measured the voltage from the soekris-shipped SMP powersupply, and it showed a stable 12.07V, so I ruled out that as a root cause. There seems to be a power-up reset problem with some 5501s, explained here: http://www.soekris.com/issue0005.htm I tried what is suggested on the issue page, but didn't get any further--the problem persists. Some measurements on JP9 (which seems to be directly routed to the resistor circled in red on the issue page): Box powered on first, then put multimeter on JP9: 1.00 kOhm approx Box powered off, pub multimeter on JP9: 94.4 kOhm approx If I hold the multimeter on JP9 while inserting the power, the box doesn't light up at all. It starts blinking just like before when I remove the multimeter, though. If I short JP9 after applying power, nothing happens; the three LEDs still blink quickly. There is nothing on the console, except exactly when I plug in the power. Most of the time I get one byte (with value 0x80 or 0xC0), sometimes nothing, and sometimes two bytes (0x80 and then 0xC0, or maybe the other way around). Removing the console cable and putting it in again (powered on or off) does not help. Removing the CF disk doesn't help, it only stops the disk light from blinking; the power and error lights blink quickly as before. Have anyone experienced this problem, or is it something known that I have missed? I'd rather not ship the unit back and get a new one, without having the problem properly fixed for the future. Sven _______________________________________________ Soekris-tech mailing list [email protected] http://lists.soekris.com/mailman/listinfo/soekris-tech
