X11SSH-F CPU Fan Lower Critical Status in IPMI

[SeaWolfX]

I'm not using TrueNAS (at the moment), but hope it is OK for me to post this here as this seems to be the best forum for Supermicro related topics.

I am using the X11SSH-F motherboard on a recently built server and a Noctua NH-L9i CPU fan. In the IPMI GUI I can see that the fan is more or less constantly in a state with a RPM of 500 where the threshold is (it sometimes goes up to 600 RPM clearing the error, but goes straight back down to 500 again). I am not sure why this is or what to do about it. The fan mode in IPMI is set to Optimal Speed. Do I need to change the fan mode or is there some way I can change the the the threshold settings (if I even should change those). Appreciate any feedback to help me with this.

 

[sretalla]

How To: Change IPMI Sensor Thresholds using ipmitool

Many server motherboards, including the Supermicro X10 series, have their fans monitored by the BMC, which automatically attempts to recover stalling (of the motor, not in the aerodynamic sense) fans by spinning them up to maximum (PWM set to...

www.truenas.com

 

[SeaWolfX]

How To: Change IPMI Sensor Thresholds using ipmitool

Many server motherboards, including the Supermicro X10 series, have their fans monitored by the BMC, which automatically attempts to recover stalling (of the motor, not in the aerodynamic sense) fans by spinning them up to maximum (PWM set to...

www.truenas.com

@sretalla Thank you for pointing me to that resource. It seems like the ipmitool is also available for Ubuntu.

If I have understood the post correctly what I should do is to change the LCR value for my to 400 RPM (as it is rounding to nearest 100 RPM)?

 

[sretalla]

You should be able to experiment with it and see (you can change it more than once), but it sounds right.

 

[Etorix]

Yes, that or even 100 rpm lower as your fan is rated for a minimum speed of 600+/-20%, i.e. possibly within spec down to 480 rpm, and there are three thresholds to keep apart. So, with rounding to multiples of 100
ipmitool sensor thresh FAN1 lower 300 400 500 or
ipmitool sensor thresh FAN1 lower 200 300 400.
Similar considerations may apply to your case fans, although there's currently no issue because they spin faster—but then failure may not be catched by the BMC.