Hello, I have a 3448P that is being monitored by nagios. Nagios is claiming that the sensor for the main power supply is critical once or twice every few days, however, there is nothing in the logs for the switch referring to this. This is a switch that I just got on ebay, so it is possible that the power supply is bad. Is there any way to test if the power supply is really failing? It never reboots when this error message appears, and as you can see below it is showing the power supply as OK in both the CLI and web interface.
# show system
System Description: Ethernet Switch
System Up Time (days,hour:min:sec): 06,14:23:46
System Contact:
System Name: BARN-3448P
System Location: Refton_Barn
System MAC Address: 00:14:22:7d:b7:f0
System Object ID: 1.3.6.1.4.1.674.10895.3009
Type: PowerConnect 3448P
Main Power Supply Status: OK
Fan 1 Status: OK
Fan 2 Status: OK
Fan 3 Status: OK
Fan 4 Status: OK
Fan 5 Status: OK
Unit Temperature (Celsius) Status
------------------------ ------------------------ ------------------------
1 9 OK