[URGENT] High CPU Temperature

[frank]

Hi,

We have a Netonix WS-12-250A in the field. The switch is running with firmware version 1.2.0.

Looking at the status, the switch shows high CPU and PHY temperature. Both Fans are not woking ( and shows 0 rpm). Why does the fans are not running ?,

Is there any temperature threshold set in the switch ?.


System ------
Current Time: 10/14/2015 14:10:20
Uptime: 682933.750000 seconds
CPU Usage: 39%
Memory Usage: 32.64 MB
MAC Address:
IP Address:
IPv6 Address:
IPv6 Address:
Firmware Version: 1.2.0
Model: WS-12-250A
Board Rev: C
Power
-----
Board 48V: 49.3 Vdc
Board 24V: 24.6 Vdc
Board 3V: 3.3 Vdc
Thermal
-------
Board Temp: 37 C
CPU Temp: 127 C
PHY Temp: 65 C
Cooling
-------
Fan 1 Speed: 0 RPM
Fan 2 Speed: 0 RPM
Regards
Frank

[Dave]

Hi.

First off, you are running very old code & should upgrade if you can.

Secondly, according to the board temp the fans should not even be running yet, as it is relatively cool inside your switch according to the board temperature reading. I can't remember if one of the software upgrades fixed a temp reading issue in the past, but worth upgrading.

Dave

[lligetfa]

I don't mean to go off topic, but wonder if it would hurt the fans to always be on at a low speed? In some situations I might prefer they run constantly on low rather that keep turning off and on. Maybe make it optional? Dave, we can take this discussion offline if you prefer.

[frank]

Thanks. What would be your recommended firmware version for this switch ?.

Is it really a worrying issue because of the high CPU temperature ?.

[Dave]

please use v1.3.3 - FINAL

[frank]

Hi,

Just upgraded a brand new switch from version 1.2.x to 1.3.3. If you see the attached screenshots, both shows the same CPU and PHY temperature.

Is is correct that the CPU temperature is 72 degree Celcius ?.

[Dave]

yes, 72 degrees is nice & cool for the CPU.

[lligetfa]

My fans turn off at 67C and on at 74C.

[sirhc]

The CPU and PHY are rated to run at 125C all day long if need be.