cylon

More testing... I noticed the fan wall fans were the ones hitting the IPMI threshold not the CPU fan so I lowered all the thresholds to 30 (lowest it will go). Same problem - can't go below a PWM setting of 56. Therefore the enhancement request in my previous post is not going to work.

I have a Supermicro X8SIL-F motherboard in a Norco RPC-4224 case with the 120mm triple fan wall. A "feature" of this motherboard is that if the CPUs fan speed gets too low it goes into an alarm state and spins all the fans (three fan wall and one CPU fan) at 100% speed. The minimum PWM value I can set is 56 which equals approximately 1035rpm on the CPU fan and 800rpm on the fan wall. There is a discussion on this specific issue here with no progress: https://lime-technology.com/forum/index.php?topic=38850.0 I have attempted to override the IPMI lower threshold by installing the IPMI tool plugin: https://raw.githubusercontent.com/dmacias72/ipmitool/master/ipmitool.plg And running this command (the CPU fan is "FAN 1") ipmitool sensor thresh "FAN 1" lower 0 0 0 This changed the following values (note that it didn't go to zero): ______________________________________________________________ Lower Non-Recoverable // Lower Critical Lower // Non-Critical Original Value: 400 484 770 New Value: 30 30 30 The lowest PWM value I can set before the IPMI alarm kicks in is still 56. :-( Onto my enhancement request - Obviously it is not desirable to reduce the minimum threshold of the CPU fan. Is it possible to update the Dynamix Auto Fan Control plugin to specify which fans are controlled rather than using the overarching PWM controller?