Fan Control in OpenBSD?
I'm wondering if OpenBSD has a manual way to control fan speed?
Currently I have SENSORSD and APMD running. I set APMD to start with the -C flag as per the man page as that was the "Cool" option.
For some strange reason the fans are spinning at 3000RPM....
sysctl gives this:
hw.sensors.cpu0.temp0=51.00 degC hw.sensors.cpu1.temp0=51.00 degC hw.sensors.cpu2.temp0=51.00 degC hw.sensors.cpu3.temp0=51.00 degC hw.sensors.lm1.temp0=34.00 degC hw.sensors.lm1.temp1=57.00 degC hw.sensors.lm1.temp2=33.50 degC hw.sensors.lm1.volt0=1.08 VDC (VCore) hw.sensors.lm1.volt1=12.04 VDC (+12V) hw.sensors.lm1.volt2=3.36 VDC (+3.3V) hw.sensors.lm1.volt3=3.36 VDC (+3.3V) hw.sensors.lm1.volt4=-10.92 VDC (-12V) hw.sensors.lm1.volt5=1.26 VDC hw.sensors.lm1.volt6=1.06 VDC hw.sensors.lm1.volt7=3.33 VDC (3.3VSB) hw.sensors.lm1.volt8=1.60 VDC (VBAT) hw.sensors.lm2.temp0=34.00 degC hw.sensors.lm2.temp1=57.00 degC hw.sensors.lm2.temp2=33.50 degC hw.sensors.lm2.fan0=1622 RPM hw.sensors.lm2.fan1=164 RPM hw.sensors.lm2.fan2=3013 RPM hw.sensors.lm2.fan3=2986 RPM hw.sensors.lm2.fan4=164 RPM hw.sensors.lm2.volt0=1.08 VDC (VCore) hw.sensors.lm2.volt1=12.04 VDC (+12V) hw.sensors.lm2.volt2=3.36 VDC (+3.3V) hw.sensors.lm2.volt3=3.36 VDC (+3.3V) hw.sensors.lm2.volt4=-10.92 VDC (-12V) hw.sensors.lm2.volt5=1.26 VDC hw.sensors.lm2.volt6=1.06 VDC hw.sensors.lm2.volt7=3.33 VDC (3.3VSB) hw.sensors.lm2.volt8=1.60 VDC (VBAT) hw.cpuspeed=1200 hw.setperf=0 hw.vendor=Supermicro hw.product=X9SRE/X9SRE-3F/X9SRi/X9SRi-3F
Basically this seems strange, though I know the kernel/BIOS should adjust the fans speeds automatically but for such large fans they are making quite a bit of noise while another machine running FreeBSD also in a SuperMicro chassis is almost dead silent.....
The chassis is basically a 4U industrial SuperMicro chassis with very large PWM fans (80mm I think?).
I don' think that the fans need to run at 3000RPM, though having done lots of reading I haven't found anywhere to adjust them with... SENSORSD is read-only and can't make adjustments.
Is there such a feature/port that could do this or do I simply have to live with the noise?
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