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From: Jean Delvare <khali@linux-fr.org>
To: lm-sensors@vger.kernel.org
Subject: Re: [lm-sensors] w83793 on X7DWA-N
Date: Thu, 02 Oct 2008 20:25:17 +0000	[thread overview]
Message-ID: <20081002222517.552e0283@hyperion.delvare> (raw)

Hi Andrew,

On Wed, 24 Sep 2008 15:34:27 +0100, Andrew Lyon wrote:
> Hi,
> 
> I have lm_sensors 3.0.2 on a supermicro X7DWA-N with kernel 2.6.25.15,
> I am trying to work out how the lm_sensors voltage readings map to the
> sensors shown in the bios and described in the motherboard manual, the
> manual states:
> 
> Onboard Voltage Monitors for the CPU Cores, Chipset Voltage, Memory
> Voltage, +1.8V, +3.3V, +5V, +12V, -12V, +3.3V Standby, +5V Standby and
> Vbat

Don't blindly trust the manual. Better check what the BIOS displays.

> sensors output:
> 
> VCoreA:      +1.20 V  (min =  +0.92 V, max =  +1.49 V)   = CPU Cores
> VCoreB:      +1.20 V  (min =  +0.92 V, max =  +1.49 V)   = CPU Cores
> Vtt:         +1.08 V  (min =  +0.99 V, max =  +1.33 V)   = ?
> in3:         +0.51 V  (min =  +0.38 V, max =  +0.69 V)   = ?
> in4:         +1.46 V  (min =  +1.34 V, max =  +1.65 V)   = ?
> +3.3V:       +3.28 V  (min =  +2.96 V, max =  +3.63 V)   +3.3V?
> +12V:       +11.81 V  (min = +10.75 V, max = +13.25 V)   +12
> +5V:         +5.02 V  (min =  +4.64 V, max =  +5.65 V)   +5
> 5VSB:        +5.05 V  (min =  +4.64 V, max =  +5.65 V)   +5V Standby
> VBAT:        +3.18 V  (min =  +2.99 V, max =  +3.66 V)   Vbat
> 
> Can anybody explain the differences?

in3 is -12V but you need the proper scaling factor. in4 is +1.5V
(typically what AGP 4x uses). I confirm that +3.3V (in5) is +3.3V ;)
The rest is correct. I am not sure if in2 (Vtt above) is really used, I
guess not.

-- 
Jean Delvare

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             reply	other threads:[~2008-10-02 20:25 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-02 20:25 Jean Delvare [this message]
  -- strict thread matches above, loose matches on Subject: below --
2008-09-24 14:34 [lm-sensors] w83793 on X7DWA-N Andrew Lyon

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