Date: Wed, 3 Jul 2013 15:28:14 -0700
From: Guenter Roeck <linux@roeck-us.net>
To: Justin Piszcz <jpiszcz@lucidpixels.com>
Cc: linux-kernel@vger.kernel.org, lm-sensors@lm-sensors.org
Subject: Re: [lm-sensors] 3.10: NCT6776F sensor question with Supermicro
 X9SRL-F motherboard
Message-ID: <20130703222814.GB32628@roeck-us.net>
References: <002901ce77e9$dfac4f20$9f04ed60$@lucidpixels.com>
 <20130703144201.GA10323@roeck-us.net>
 <007101ce7807$88cfb160$9a6f1420$@lucidpixels.com>
 <20130703163311.GB12506@roeck-us.net>
 <008001ce780d$0d1a79f0$274f6dd0$@lucidpixels.com>
 <20130703171713.GA26555@roeck-us.net>
 <008e01ce7811$b50c9180$1f25b480$@lucidpixels.com>
 <20130703205654.GA30588@roeck-us.net>
 <00ad01ce7830$3b135890$b13a09b0$@lucidpixels.com>
 <00b501ce7830$527362a0$f75a27e0$@lucidpixels.com>
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On Wed, Jul 03, 2013 at 05:00:16PM -0400, Justin Piszcz wrote:
> Re-sending as text.
> 
> From: Justin Piszcz [mailto:jpiszcz@lucidpixels.com] 
> Sent: Wednesday, July 03, 2013 5:00 PM
> To: 'Guenter Roeck'
> Cc: linux-kernel@vger.kernel.org; lm-sensors@lm-sensors.org
> Subject: RE: [lm-sensors] 3.10: NCT6776F sensor question with Supermicro
> X9SRL-F motherboard
> 
> 
> 
> -----Original Message-----
> From: Guenter Roeck [mailto:linux@roeck-us.net] 
> Sent: Wednesday, July 03, 2013 4:57 PM
> To: Justin Piszcz
> Cc: linux-kernel@vger.kernel.org; lm-sensors@lm-sensors.org
> Subject: Re: [lm-sensors] 3.10: NCT6776F sensor question with Supermicro
> X9SRL-F motherboard
> 
> [ .. ]
> 
> > 09: 0a 00 00 00 00 0a 0a 0a 0a aa ef 80 ff 40 46 c4 
> > 0a: 0e 01 00 00 ff 00 00 ff 00 00 80 66 66 06 01 01 
> ????????????????????????????????????????????????^^
> This shows that PECI Agent 0 is supposed to be enabled.
> 
> > Bank 2:
> >???? 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 
> > 00: 8c 32 00 01 01 33 01 3c ff 33 ff ff 00 ff ff ff 
> ??????^^
> This value suggests that the second temperature sensor (the one creating
> the alarm) is supposed to be the PECI source (which reports the CPU
> temperature
> to the NCT6776), and that it is supposed to be used to control the speed
> of the CPU fan.
> ??????????? ^^
> Fan control is in manual mode. Did you set this ?
> It is quite unusual.
> 
> Setting:??????????????? 
> Current FAN Mode is Optimal.
> Set Fan to Standard Speed
> Set Fan to Full Speed
> Set Fan to Optimal Speed
> 
Maybe that translates into fixed speeds.

Guenter
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