Re: [lm-sensors] Strange sensor values ASUS M5A97 Pro

From: Guenter Roeck <linux@roeck-us.net>
To: lm-sensors@vger.kernel.org
Subject: Re: [lm-sensors] Strange sensor values ASUS M5A97 Pro
Date: Wed, 04 Dec 2013 23:08:23 +0000	[thread overview]
Message-ID: <20131204230823.GA683@roeck-us.net> (raw)
In-Reply-To: <4a2b86669bfcfeb87b592fc7bb443eb0@secure.lordvan.com>

On Wed, Dec 04, 2013 at 06:31:06PM +0100, Thomas Raschbacher wrote:
> On 2013-12-03 17:37, Guenter Roeck wrote:
> >On Tue, Dec 03, 2013 at 04:12:45PM +0100, Thomas Raschbacher wrote:
> >>On 2013-12-02 20:48, Guenter Roeck wrote:
> >>>On Mon, Dec 02, 2013 at 08:23:15PM +0100, Thomas Raschbacher wrote:
> >>>>On 2013-12-02 19:10, Guenter Roeck wrote:
> >>>>>On Mon, Dec 02, 2013 at 10:49:24AM +0100, Thomas Raschbacher wrote:
> >>>>>>Hi.
> >>>>>>
> >>>>>>I get rather strange values for temperature ranges:
> >>>>>>
> >>>>>>it8721-isa-0290
> >>>>>>Adapter: ISA adapter
> >>>>>>in0:          +2.84 V  (min =  +1.54 V, max =  +0.84 V)  ALARM
> >>>>>>in1:          +2.80 V  (min =  +1.33 V, max =  +0.54 V)  ALARM
> >>>>>>in2:          +1.02 V  (min =  +0.56 V, max =  +1.86 V)
> >>>>>>+3.3V:        +3.24 V  (min =  +4.58 V, max =  +5.95 V)  ALARM
> >>>>>>in4:          +2.05 V  (min =  +2.66 V, max =  +0.91 V)  ALARM
> >>>>>>in5:          +2.50 V  (min =  +1.51 V, max =  +1.67 V)  ALARM
> >>>>>>in6:          +1.80 V  (min =  +1.09 V, max =  +2.27 V)
> >>>>>>3VSB:         +0.70 V  (min =  +4.56 V, max =  +4.46 V)  ALARM
> >>>>>>Vbat:         +3.34 V
> >>>>>>fan1:        2213 RPM  (min =   12 RPM)
> >>>>>>fan2:        1336 RPM  (min =   13 RPM)
> >>>>>>fan3:        1300 RPM  (min =   12 RPM)
> >>>>>>temp1:        +45.0 C  (low  = -36.0 C, high = -36.0 C)  ALARM
> >>>>>>sensor = thermistor
> >>>>>>temp2:        +51.0 C  (low  = +91.0 C, high = -93.0 C)  ALARM
> >>>>>>sensor = thermistor
> >>>>>>temp3:       -128.0 C  (low  = -11.0 C, high = +94.0 C)  sensor > >>>>>>disabled
> >>>>>>intrusion0:  OK
> >>
> >>Actually I was just thinking ... somethign is not right with those
> >>values anyway ..
> >>
> >>I mean look at the voltages ..t he only one that sounds vaguely
> >>reasonable is the 3.3V one .. and one of the other ones might be CPU
> >>..
> >>but where is the CPU one ..
> >>
> >>also i got 2 chassis fans (and the bios can show all values properly)
> >>
> >>So I got a missing fan value and voltages that don'T make sense ..
> >>any clue what to do about this?
> >>
> >Voltages have to be scaled.
> >
> >Useful resources:
> >	http://www.lm-sensors.org/wiki/AsusFormulaHacking
> >	http://www.lm-sensors.org/wiki/VoltageLabelsAndScaling
> >	http://www.lm-sensors.org/wiki/Configurations/Asus
> >
> >As for the missing fan speed, many ASUS boards implement GPIO
> >based multiplexers
> >to support additional fans. Those multiplexers are not supported
> >in Linux.
> >Since ASUS does not release specifications, there is little chance
> >to ever add
> >support for those multiplexed fans.
> >
> >Asking ASUS for support won't help, since ASUS officially does not
> >support Linux
> >on its desktop boards.
> >
> >Guenter
> 
> Ok I got the decompiled dsdt.dsl source now .. but to be honest I
> can'T really find anything in this right now.
> Anyone who has the time & knowledge to have a look for me? I can
> upload the file somewhere
> 
Unfortunately I am pretty clueless myself when it comes to dsdt.
Can you just post the file somewhere ? I can have a look, but probably
won't be of much help. The other options might be more promising,
ie look at comparable configurations and compare BIOS voltages 
with observed voltages.

Guenter

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