Re: W83795AG on SuperMicro 7046T-NTR+ board

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Hi David,

On Sat, 29 Jan 2011 10:53:15 -0800, David Anderson wrote:
> Supermicro support supplied the following info
> on the Winbond W83795AG on SuperMicro 7046T-NTR+ board
> 
> Bus Type = SMBus
> One W83795AG
> 
> Windbond W83795AG, Slave Address=0x2f (0x5E in 8-Bit format)
> =============================================================
> Fan1 Fan Speed, Offset 0x2e		RPM = 84375/Data
> Fan2 Fan Speed, Offset 0x2f		RPM = 84375/Data
> Fan3 Fan Speed, Offset 0x30		RPM = 84375/Data
> Fan4 Fan Speed, Offset 0x31		RPM = 84375/Data
> Fan5 Fan Speed, Offset 0x32		RPM = 84375/Data
> Fan6 Fan Speed, Offset 0x33		RPM = 84375/Data
> Fan7 Fan Speed, Offset 0x34		RPM = 84375/Data
> Fan8 Fan Speed, Offset 0x35		RPM = 84375/Data
> Fan9 Fan Speed, Offset 0x36		RPM = 84375/Data
> CPU1 Voltage, Offset 0x11		Voltage = Data* 0.008
> CPU2 Voltage, Offset 0x10		Voltage = Data* 0.008
> +1.5V Voltage, Offset 0x12		Voltage = Data* 0.008
> +5V Voltage, Offset 0x13		Voltage = Data* 0.008 * (40/10)
> +12V Voltage, Offset 0x14		Voltage = Data* 0.008/ (10./66.2)
> +5VSB Voltage, Offset 0x15		Voltage = Data* 0.008 * (40/10)
> CPU1 DIMM Voltage, Offset 0x17		Voltage = Data* 0.008
> CPU2 DIMM Voltage, Offset 0x16		Voltage = Data* 0.008
> +3.3V Voltage, Offset 0x1c		Voltage = Data* 0.024
> +3.3VSB Voltage, Offset 0x1d		Voltage = Data* 0.024
> VBAT Voltage, Offset 0x1e		Voltage = Data* 0.024
> CPU1 Temperature, Offset 0x26		Temperature = Data
> CPU2 Temperature, Offset 0x27		Temperature = Data
> System Temperature, Offset 0x1f		Temperature = Data
> Chassis Intrusion, Bank 0, Offset 0x46, BitMask 0x40	1 = Bad, 0 = Good
> 			(Clear Bit: Bank 0, Offset 0x4d, BitMask 0x80)
> 
> 
> Power Supply Failure, GP21(From W83527HG)		1 = Good, 0 = Bad
> 
> 
> I don't yet understand how to use this info though. Ubuntu 10.10.

This tells you that the board uses a Winbond W83795 chip (not sure which one
exactly, as I know of two variants "G" and "ADG" and they told you
"AG" which I don't think exists...) for hardware monitoring. This
device is supported by "my" w83795 driver, which is available since
kernel 2.6.37 or as a standalone driver at:
  http://khali.linux-fr.org/devel/misc/w83795/

More specifically, the above data, together with the w83795 source
code, tells you how to write a libsensors configuration file for your
board. To make your job easier, I have documented the mapping between
pins, symbols, registers and sysfs entries:
  http://lists.lm-sensors.org/pipermail/lm-sensors/2011-January/031163.html

Apparently you managed to write a configuration file already, this
document should help you confirm if you got it all right or not.

-- 
Jean Delvare

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