Problem reading vitals from Gigabyte H77-DH3H

[Andriy Gapon]

on 21/10/2012 00:17 Derek Kulinski said the following:
> Hello Andriy,
> 
> Saturday, October 20, 2012, 1:09:10 PM, you wrote:
> 
>> on 20/10/2012 22:42 Andriy Gapon said the following:
>>> on 20/10/2012 22:20 Derek Kulinski said the following:
>>>> I have three questions though:
>>>> 1. The motherboard has 4 fan sockets (as far as I can tell), CPU_FAN,
>>>>    and SYS_FAN[1-3]. SYS_FAN1 currently is not connected.
>>>>    Seems like:
>>>>      fan0 -> CPU_FAN (did not try to disconnect it to check :)
>>>>      fan1 -> SYS_FAN1
>>>>      fan2 -> SYS_FAN2
>>>>    There is no entry for SYS_FAN3. I disconnected it temporarily but
>>>>    it did not seem to affect the output. Is it possible to get that
>>>>    information from the motherboard?
>>>
>>> The driver would have to be updated for that.
>>> Unfortunately ITE does not provide public datasheets.
>>> We could pick up some new bits from the Linux driver though.
>>> http://lxr.linux.no/#linux+v3.6.2/drivers/hwmon/it87.c
> 
>> In fact, here is a completely untested patch:
>> http://people.freebsd.org/~avg/it-fans-0x80.diff
> 
> hw.sensors.it0.fan0: 997 RPM
> hw.sensors.it0.fan1: invalid
> hw.sensors.it0.fan2: 1352 RPM
> hw.sensors.it0.fan3: 1222 RPM
> hw.sensors.it0.fan4: invalid
> hw.sensors.it0.volt0: 2,70 VDC (VCORE_A)
> hw.sensors.it0.volt1: 4,60 VDC (VCORE_B)
> hw.sensors.it0.volt2: 0,06 VDC (+3.3V)
> hw.sensors.it0.volt3: -5,08 VDC (+5V)
> hw.sensors.it0.volt4: -6,53 VDC (+12V)
> hw.sensors.it0.volt5: 3,74 VDC (Unused)
> hw.sensors.it0.volt6: 2,14 VDC (-12V)
> hw.sensors.it0.volt7: 301,15 VDC (+5VSB)
> hw.sensors.it0.volt8: 298,15 VDC (VBAT)
> hw.sensors.it0.temp0: 22,00 degC
> hw.sensors.it0.temp1: -273,15 degC
> hw.sensors.it0.temp2: -273,15 degC
> 
> Looks like the 3rd fan is visible. BTW: The value invalid shows when
> it is unplugged, wouldn't value "0 RPM" make more sense in that case?
> At least that's what BIOS reports for unplugged fans.

The sensors code has its own conventions.

> Looks like the the temperatures are messed up. Looks like 2 last
> voltage values is the temperature.

Oops, right.  I've updated the patch at the same URL.

>> P.S. Just to satisfy my curiosity - could you please add a printf in it_attach
>> that would print the value read from ITD_COREID?
> 
> Here it is the output (as decimal):
> Oct 20 14:08:04 chinatsu kernel: it0 at port 0xa30-0xa37 on isa0
> Oct 20 14:08:04 chinatsu kernel: it0: ITD_COREID = 18

Thank you!

> As for using Linux CD I can't do it immediatelly, the box does not
> have cdrom, besides I don't have any image lying around. Any
> recommendation for something that I could boot from USB and would be
> able to provide everything you need?

Unfortunately, I don't have familiarity with Linux distros either...

-- 
Andriy Gapon