Re: missing fan RPMS

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On Sat, May 12, 2012 at 05:25:21PM -0400, James wrote:
> 
> I bought a new motherboard (ASRock 970 Extreme3) and it doesn't report the fans.
> 
Hi James,

> nct6776-isa-0290
> Adapter: ISA adapter
> Vcore:        +0.86 V  (min =  +0.00 V, max =  +1.74 V)
> in1:          +1.85 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
> AVCC:         +3.33 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
> +3.3V:        +3.33 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
> in4:          +1.58 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
> in5:          +1.70 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
> 3VSB:         +3.44 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
> Vbat:         +3.34 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
> fan1:           0 RPM  (min =    0 RPM)  ALARM
> fan2:           0 RPM  (min =    0 RPM)  ALARM
> fan3:           0 RPM  (min =    0 RPM)  ALARM
> fan4:           0 RPM  (min =    0 RPM)  ALARM
> fan5:           0 RPM  (min =    0 RPM)  ALARM

Weird. We had a bug where fans where not recognized at all, but I have not seen
zero RPM reported.

If you like, you can try my experimental new driver from https://github.com/groeck/nct6775.

> sensors also doesn't show +12V or +5V.
> 
Those will be among in1, in4, and in5. The ADC is range of the NCT6776F limited,
so the voltage passed to the chip is scaled. Question is which one is which.
Have a look at http://www.lm-sensors.org/wiki/VoltageLabelsAndScaling;
maybe it helps you finding out.

Guenter

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