Quote Originally Posted by gtj View Post
Hmmm. I think I posted an interim version by mistake. You shouldn't have needed any patches. Sorry.

Clark is correct about the mch fan header. It isn't monitored.

in0 = vMCH
in1 = vCORE
It looks like sensors is scaling them incorrectly though.

I'll have to dig out my notes on the temp and fan mappings. I don't have them with me at work so I'll grab them tonight.
Thanks gtj and clark.

gtj did you intend the scaling to be set up in sensors.conf ? ( actually sensors3.conf -- I'm using sensors version 3.0.1 with libsensors version 3.0.1). If so then we would just need to know how to set it correctly.
I haven't touched it so far.

I have now attached fans to the CPU fan header, the "Rear Fan" header and the "Rear Fan 2" header (called Aux in BIOS). Can't get at the front fan header without dismantling the computer so will leave it for now.

The CPU fan shows up in the sensors display as fan1, RearFan2/Aux shows up as fan 2, but the Rear Fan RPM is missing.

The BIOS also shows zero RPM for the rear fan but it's definitely turning. Is this a known problem?

Code:
$ sensors
asc7621a-i2c-0-2e
Adapter: SMBus I801 adapter at 2000
in0:         +1.21 V  (min =  +0.00 V, max =  +3.31 V)
in1:         +1.01 V  (min =  +0.00 V, max =  +2.99 V)
in2:         +3.24 V  (min =  +0.00 V, max =  +4.36 V)
in3:         +4.99 V  (min =  +0.00 V, max =  +6.61 V)
in4:        +11.84 V  (min =  +0.00 V, max = +15.94 V)
fan1:       1753 RPM  (min =    0 RPM)
fan2:        906 RPM  (min =    0 RPM)
fan3:          0 RPM  (min =    0 RPM)
fan4:          0 RPM  (min =    0 RPM)
temp1:       -62.0°C  (low  = -127.0°C, high =  +0.0°C)  ALARM
                      (crit = -21.0°C)                  sensor = diode
temp2:       +42.0°C  (low  = -127.0°C, high = +127.0°C)
                      (crit = +65.0°C)                  sensor = thermal diode
temp3:       +45.5°C  (low  = -127.0°C, high = +127.0°C)
                      (crit = +65.0°C)                  sensor = transistor
temp4:       +41.5°C  (low  = -127.0°C, high = +127.0°C)
                      (crit = -128.0°C)                  sensor = Intel PECI
temp5:       -62.0°C                                    sensor = Intel PECI
temp6:       -85.0°C                                    sensor = Intel PECI
temp7:       +96.0°C                                    sensor = Intel PECI
temp8:      +118.0°C                                    sensor = Intel PECI
By the way all speeds and voltages are at default - no overclocking or overvolting.