w83697hf -12v readings

w83697hf -12v readings

[David Cannings]

The readings from 'sensors' under the section w83697hf-isa-0290 show the
following:

-12V:      +2.22 V  (min = -13.16 V, max = -10.77 V)       ALARM
-5V:       +0.60 V  (min =  -5.23 V, max =  -4.73 V)       ALARM

I would hope this is incorrect!  Is it possible to fix the values so
they display correctly?  All of the other output seems fine and
correlates with either the ACPI thermal zone, BIOS readings, etc.

The chips on board are the SIS 961 and a Winbond W83697HF.

David

w83697hf -12v readings

[Jean Delvare]

Hi David,

> The readings from 'sensors' under the section w83697hf-isa-0290 show
> the following:
> 
> -12V:      +2.22 V  (min = -13.16 V, max = -10.77 V)       ALARM
> -5V:       +0.60 V  (min =  -5.23 V, max =  -4.73 V)       ALARM
> 
> I would hope this is incorrect!  Is it possible to fix the values so
> they display correctly?  All of the other output seems fine and
> correlates with either the ACPI thermal zone, BIOS readings, etc.

http://www2.lm-sensors.nu/~lm78/cvs/lm_sensors2/doc/lm_sensors-FAQ.html#Section-4_002e6

Does the BIOS display values for -12V and -5V? If it does, what are
they?

> The chips on board are the SIS 961 and a Winbond W83697HF.

What motherboard is it exactly?

-- 
Jean Delvare
http://khali.linux-fr.org/

w83697hf -12v readings

[David Cannings]

Jean Delvare wrote:
> Hi David,
>> The readings from 'sensors' under the section w83697hf-isa-0290
>> show the following:
>> -12V:      +2.22 V  (min = -13.16 V, max = -10.77 V)       ALARM 
>> -5V:       +0.60 V  (min =  -5.23 V, max =  -4.73 V)       ALARM
>> I would hope this is incorrect!  Is it possible to fix the values
>> so they display correctly?  All of the other output seems fine and 
>> correlates with either the ACPI thermal zone, BIOS readings, etc.
> http://www2.lm-sensors.nu/~lm78/cvs/lm_sensors2/doc/lm_sensors-FAQ.html#Section-4_002e6
> Does the BIOS display values for -12V and -5V? If it does, what are 
> they?

No, it does not, I hadn't noticed this.  It does display values for
Vdimm and Vio though which aren't in sensors.

>> The chips on board are the SIS 961 and a Winbond W83697HF.
> What motherboard is it exactly?

An Epox 4SDM2+.  Thanks for the FAQ reference, I've never had a new
enough board that doesn't show the -12v and -5v lines until now.  I've
simply ignored the two sensors in the configuration file, for now.

David

w83697hf -12v readings

[Jean Delvare]

Hi David,

> > Does the BIOS display values for -12V and -5V? If it does, what are 
> > they?
> 
> No, it does not, I hadn't noticed this.  It does display values for
> Vdimm and Vio though which aren't in sensors.

Don't you come to a conclusion at this point? ;)

What sensors think are -12V and -5V have to be Vdimm and Vio. Edit
/etc/sensors.conf:

    label in5 "Vdimm"
    label in6 "Vio"

Comment out the compute in5 and in6 lines.

    set in5_min 3.3 * 0.95
    set in5_max 3.3 * 1.05
    set in6_min 2.5 * 0.95
    set in6_max 2.6 * 1.05

Run sensors -s && sensors, see what it looks like. And adjust the limits
afterwards if needed.

Note that the sensors.conf.eg file has interesting comments about Epox
boards in the w83697hf-* section. You should read them, they seem to
apply to your board.

We may add specific notes for your board if you share your experience
once you get the correct configuration values.

-- 
Jean Delvare
http://khali.linux-fr.org/

w83697hf -12v readings

[David Cannings]

Jean Delvare wrote:
> Hi David,
>> > Does the BIOS display values for -12V and -5V? If it does, what are 
>> > they?
>> No, it does not, I hadn't noticed this.  It does display values for
>> Vdimm and Vio though which aren't in sensors.
> Don't you come to a conclusion at this point? ;)

I did, but I didn't think that they were because the values were way
out.  I hadn't considered the compute lines, though.

> What sensors think are -12V and -5V have to be Vdimm and Vio. Edit
> /etc/sensors.conf:
>     label in5 "Vdimm"
>     label in6 "Vio"

For the sake of the archives, these are the wrong way round (switch
Vdimm with Vio).  The notes in sensors.conf are correct.

> Comment out the compute in5 and in6 lines.
>     set in5_min 3.3 * 0.95
>     set in5_max 3.3 * 1.05
>     set in6_min 2.5 * 0.95
>     set in6_max 2.6 * 1.05

This is correct, for the Epox 4SDM2+ the value should be 2.6 (as
suggested in sensors.conf).

> Run sensors -s && sensors, see what it looks like. And adjust the limits
> afterwards if needed.

I now have the correct values for Vio and Vdimm (similar to those
reported by the BIOS), thank you.  My V5SB and Vbat appear to be correct
without swapping them, however, which is suggested in sensors.conf.

> We may add specific notes for your board if you share your experience
> once you get the correct configuration values.

A complete summary of what I have done for my sensors is below:

For Epox 4SDM2+, changes to /etc/sensors.conf, all in section for
"w83697hf-*":

  - Change 1.8 in "set in0_min" and "set in0_max" to 1.75, for a 1.75v
    core

  - Replace in5 and in6 limits with (for Vio and Vdimm):

    set in5_min 3.3 * 0.95
    set in5_max 3.3 * 1.05
    set in6_min 2.5 * 0.95
    set in6_max 2.6 * 1.05

  - Change labels to:

    label in5 "Vio"
    label in6 "Vdimm"
	
  - Comment "compute in5" and "compute in6" lines, do not swap in7 for
    in8 as suggested as V5SB/VBat appear to be correct by default.

Thanks for your help Jean,

David