Re: Supermicro X7DBU configuration

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Le Wednesday 17 December 2014 à 06:43 -0800, Guenter Roeck a écrit :
> On 12/17/2014 02:08 AM, Jean Delvare wrote:
> > This chip is missing from the output of "sensors" below. You need to
> > figure out why. Is the w83793 kernel module available on your system?
> > Is it loaded? If not, what happens if you try to load it manually? Any
> > error message in the kernel log? The fans are certainly connected to
> > that chip.
> 
> Hardware monitoring might be disabled for this chip. I have seen this
> with other Supermicro boards; on mine, for example, they use the second
> SuperIO chip only for additional serial ports. The kernel log might
> give a hint if that is the case.

I doubt this is the case here, as the W83793G is a dedicated hardware
monitoring chip. There's no point in putting it on the board if they
don't use the feature.

> Another option might be that the missing chip is the one used for hardware
> monitoring but its register space is reserved by ACPI. That would explain
> why the chip listed below doesn't report much useful data. Again, the
> kernel log should give a hint.

I don't think this can happen for an SMBus device. If the SMBus
controller had an ACPI I/O resource conflict, sensors-detect would not
have been able to scan it. And there is no notion of I2C/SMBus resource
space in ACPI.

-- 
Jean Delvare
SUSE L3 Support


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