[lm-sensors] Soltek K8T800Pro (it87-isa-0290), help setting my limits.
moofie at shaw.ca
Sat Apr 10 09:30:31 CEST 2010
Jean Delvare wrote:
> On Thu, 08 Apr 2010 16:30:26 -0700, Moofie wrote:
>> Moofie wrote:
>>> Hello list, this is my first time posting here, and I come with some
>>> questions about my server motherboard with the hopes that I configure
>>> sensors on it correctly.
>>> While this Soltek board is relatively old (as the company is no longer
>>> in business), I had never used it since the day that I bought it. The
>>> board was recently installed into a server role and I hope to monitor
>>> its health from a distance.
>>> While sensors detects the correct chips installed on the board, the
>>> values are useless.
>>> I'm wondering if anyone can shed light on how to set the values
>>> correctly for this board. Here's some pertinent info:
>>> ITE IT8712F, National LM90 (ISA 290h, SMBus 4Ch)
>>> Adapter: Virtual device
>>> temp1: +40.0°C (crit = +75.0°C)
>>> Adapter: PCI adapter
>>> Core0 Temp: +50.0°C
>>> Core1 Temp: +42.0°C
> This would be an IT8705F chip, not IT8712F as you wrote above.
OK, I was going off of a forum post (one of a few about this specific
motherboard, as the site is now unavailable, and finding information is
>>> Adapter: ISA adapter
>>> in0: +1.31 V (min = +0.00 V, max = +4.08 V)
>>> in1: +2.54 V (min = +0.00 V, max = +4.08 V)
>>> in2: +3.28 V (min = +0.00 V, max = +4.08 V)
>>> in3: +2.90 V (min = +0.00 V, max = +4.08 V)
>>> in4: +2.91 V (min = +0.00 V, max = +4.08 V)
>>> in5: +0.96 V (min = +0.00 V, max = +4.08 V)
>>> in6: +1.12 V (min = +0.00 V, max = +4.08 V)
>>> in7: +2.94 V (min = +0.00 V, max = +4.08 V)
>>> Vbat: +3.26 V
>>> fan1: 11250 RPM (min = 3245 RPM)
>>> fan2: 4963 RPM (min = 0 RPM)
>>> temp1: +26.0°C (low = -1.0°C, high = +127.0°C) sensor =
>>> temp2: -86.0°C (low = -1.0°C, high = +127.0°C) sensor =
>>> thermal diode
>>> temp3: +14.0°C (low = -1.0°C, high = +127.0°C) sensor =
>>> Adapter: SMBus Via Pro adapter at 5000
>>> temp1: +38.0°C (low = +0.0°C, high = +70.0°C)
>>> (crit = +85.0°C, hyst = +75.0°C)
>>> temp2: +63.1°C (low = +0.0°C, high = +70.0°C)
>>> (crit = +85.0°C, hyst = +75.0°C)
>>> If I can provide more information, let me know.
>> I have been playing with the values and I feel that I have made some
>> progress. Identifying the sensors is difficult as they all seem to show
>> different patterns.
>> Under it87, temp1 is almost constant, it hovers around 26C, currently
>> it's at 24C and I've seen it go as high as 27C. Using stress (with all
>> the different hogs), the temperature does climb, but not right away and
>> this leads me to believe that this is indeed a sensor and it monitors
>> the ambient/case temperature.
>> temp2 is a negative value and stays constant within a 3 degree range if
>> set to a thermal diode, if set to thermistor it seems to stay constant
>> at negative 55. This is all throughout multiple stress runs, both
>> memory, i/o, disk and CPU. I'm assuming that this sensor is not connected.
>> temp3 swings wildly from -110 to about 108 degrees, and all over in
>> between. I've tried setting it as a thermistor or diode, and it still
>> goes all over the place. I'm wondering what I can do with this sensor
>> as it's not really reading correctly. It must be sensing something, as
>> it does produce values all over the range, I'm just stumped as to what
>> kind of compute function I would need to use to make this thing make any
>> kind of sense.
> If it jumps all over the place no matter the setting, then you can
> safely conclude that it is left floating and should be disabled/ignored.
I visited your site and found a few examples that said the manufacturer
left the sensor floating. I was unaware as to what that meant exactly.
Thanks for letting me know. I have now disabled all three temperature
>> I will further ask questions about the rest of the detected chips as I
>> get to them, though I'd appreciate any thoughts on the above temperature
> Given that the board vendor used a dedicated LM90 temperature
> monitoring chip to track the CPU temperature, I wouldn't be surprised
> if most or all of the IT8705F temperatures inputs were left unused. The
I was getting that feeling through my many attempts at computing the values.
> it87 driver forcibly enables temperature monitoring channels if they
> are found all disabled when the driver is loaded. It probably shouldn't
> do that, especially given that each channel can be configured in two
> different modes (thermistor and thermal diode) and the driver has no
> way to know which mode would be correct. Incidentally, your modes
> configuration for temp1, temp2 and temp3 matches the arbitrary default
> set by the it87 driver, so it is possible that all sensors were indeed
> disabled originally.
> I will fix the it87 driver later today to no longer arbitrarily enable
> temperature sensors. This should clear some confusion as least on some
> What temperatures are reported by the BIOS on this machine? This would
> be a valuable hint.
The BIOS reports that CPU temp is at 60C and that SYS temp is at 20C.
I've run across a few posts about the CPU temperature reported via the
windows utility and the bios reports as being off. I know the
manufacturer released a BIOS revision after mine, though unfortunately
it's quite buggy and most of the people who ran/run this board
downgraded back to the version I'm running.
I've guessed at the second temperature that the LM90 reports and used a
calculate formula to reduce the reading by 10% as 60C is very high for
an undervolted Opteron 165.
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