Re: [lm-sensors] Configuration file for Intel D2500CC mini-ITX board

From: Jean Delvare <khali@linux-fr.org>
To: lm-sensors@vger.kernel.org
Subject: Re: [lm-sensors] Configuration file for Intel D2500CC mini-ITX board
Date: Wed, 29 May 2013 15:05:47 +0000	[thread overview]
Message-ID: <20130529170547.4fcc2642@endymion.delvare> (raw)
In-Reply-To: <20130529150440.4e021553@obraro.integrasoft.ro>

On Wed, 29 May 2013 16:30:13 +0300, SZENTE Balint wrote:
> On Wed, 29 May 2013 14:31:03 +0200
> Jean Delvare <khali@linux-fr.org> wrote:
> 
> > [...]
> > > chip "w83627uhg-*"
> > > 
> > >     ignore  intrusion0
> > 
> > If this feature missing on the board itself, or only on your chassis?
> > If it is present on the board then we don't want to ignore it in the
> > configuration file present in the wiki.
> 
> I think it is actually missing from the board itself. I did not find
> any connector on the mainboard itself. Similar to the second fan input.
> I kindly ask you to verify it:
> <http://www.intel.com/support/motherboards/desktop/d2500cc/sb/CS-032623.htm>
> Chapter 1.10.1 -- Hardware Monitoring

Couldn't find anything related either.

> > [...]
> > >     # Processor Vcc
> > >     label   in0            "Vcore"
> > >     set     in0_min        0.40
> > >     set     in0_max        1.60
> 
> Vcore is special. I noticed that it changes with SpeedStep (for
> example on D2800). However D2500 does not have SpeedStep. It is
> constantly on 1.19V. In case of D2800 for example it varies
> between 0.85V and 1.07V depending on the load.
> What would you recommend for min/max?

As it depends on the CPU it is hard to say. The user will have to
adjust them anyway so I'll leave the values above.

> > > 
> > >     # +3.3V
> > >     label   in1            "+3.3V"
> > >     compute in1            3.2*@, @/3.2
> > >     set     in1_min        3.00
> > >     set     in1_max        3.60
> > > 
> > >     # +5.0V
> > >     label   in3            "+5V"
> > >     set     in3_min        4.60
> > >     set     in3_max        5.40
> > > 
> > >     # +12.0V
> > >     label   in4            "+12V"
> > >     compute in4            12*@, @/12
> > >     set     in4_min        10.20
> > >     set     in4_max        13.80
> > 
> > These +3.3V, +5V and +12V limits are way beyond the +/- 5% specified
> > by ATX.
> 
> I fully agree with you. I take these limits from the BIOS factory
> default values. Also without giving the min/max, the default range form
> the driver is almost the same. Please fix the wiki and write for all of
> them to <nominal value> *0.95 and *1.05, as you said.

Done.

> (...)
> Yes it is DDR3. See the above for explanation. Please apply your
> correction to the wiki page.

Done.

-- 
Jean Delvare

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