- Aug 15, 2014
Also just checked my fan speed mode on the BCM page, it's set to full speed.
Have you tried rebooting (the BMC and server) after setting it to FULL?When the system is in "Full" mode, it will still override any fan options within 1-2 seconds of the setting being set.
Yes, I've pretty much exhausted my options. I ended up installing an NA-FC1 between the FAN1 PWM pin and the PWM pin for all the fan connectors. I can't upload the picture for some reason, but essentially what I ended up doing was taking a 5 pack of 4 pin fan extension cables, and removing the PWM signal wire from each fan header, reconnecting all the extension cables between the FANx header and appropriate fan, and joining all the PWM controllers with the NA-FC1 inline on FAN1. This allows the NA-FC1 to see the fan speed of FAN1 and control all of the fans, without needing 4 NA-FC1s or pulling all the power from a single fan header. As an extra bonus, since the tachometer wire from each fan still goes back to it's appropriate header, the BMC still sees each fan's speed. The system runs near silently now, and even has better thermals than my 2U and 3U chassis...Have you tried rebooting (the BMC and server) after setting it to FULL?
I have the same problem and this is my last hope but I can't try it until I'm back home.