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Monitor CPU temperature in a Supermicro X6DH8-XG2

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Santi Saez

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May 21, 2008, 8:20:08 AM5/21/08
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Dear Srs,

I need to get the CPU temperature in a Supermicro X6DH8-XG2
motherboard, this is the link for key features:

http://www.supermicro.com/products/motherboard/Xeon800/E7520/X6DH8-
XG2.cfm

According with the page specs, X6DH8-XG2 seems to have some thermal
monitoring chip/hardware:

* Monitoring for CPU and chassis environment
* CPU thermal trip support
* Thermal Monitor 2 support

When running lm-sensors 2.10.1-3 (with libsensors3) on a Debian Etch
box I get:

# sensors
No sensors found!
Make sure you loaded all the kernel drivers you need.
Try sensors-detect to find out which these are.

This is the output for "sensors-detect":

========================================================================
=================

(..)
# I2C adapter drivers
i2c-i801
# Chip drivers
# Warning: the required module lm93 is not currently installed
# on your system. For status of 2.6 kernel ports check
# http://www.lm-sensors.org/wiki/Devices. If driver is built
# into the kernel, or unavailable, comment out the following line.
lm93
# no driver for Nat. Semi. PC87427 Super IO Fan Sensors yet
========================================================================
=================

Debian is using Etch default kernel, 2.6.18-6-686-bigmem, i2c-i801
modules loads correctly but lm93 isn't available:

# lsmod | grep i801
i2c_i801 8236 0
i2c_core 20448 4 eeprom,lm83,i2c_dev,i2c_i801

# modprobe -l | grep lm93
# modprobe lm93
FATAL: Module lm93 not found.

I have also tried looking at ACPI info into /proc, file "/proc/acpi/
thermal_zone/THRM/temperature" but isn't not available:

========================================================================
=================
# find /proc/acpi
/proc/acpi
/proc/acpi/battery
/proc/acpi/thermal_zone
/proc/acpi/processor
/proc/acpi/processor/CPU3
/proc/acpi/processor/CPU3/power
/proc/acpi/processor/CPU3/limit
/proc/acpi/processor/CPU3/throttling
/proc/acpi/processor/CPU3/info
/proc/acpi/processor/CPU2
/proc/acpi/processor/CPU2/power
/proc/acpi/processor/CPU2/limit
/proc/acpi/processor/CPU2/throttling
/proc/acpi/processor/CPU2/info
/proc/acpi/processor/CPU1
/proc/acpi/processor/CPU1/power
/proc/acpi/processor/CPU1/limit
/proc/acpi/processor/CPU1/throttling
/proc/acpi/processor/CPU1/info
/proc/acpi/processor/CPU0
/proc/acpi/processor/CPU0/power
/proc/acpi/processor/CPU0/limit
/proc/acpi/processor/CPU0/throttling
/proc/acpi/processor/CPU0/info
/proc/acpi/fan
/proc/acpi/wakeup
/proc/acpi/alarm
/proc/acpi/event
/proc/acpi/fadt
/proc/acpi/dsdt
/proc/acpi/info
/proc/acpi/power_resource
/proc/acpi/embedded_controller
========================================================================
=================

Trying with IPMI I get this error:

========================================================================
=================
# ipmitool sdr elist
Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0:
No such file or directory
Get Device ID command failed
Unable to open SDR for reading
========================================================================
=================


And the device appears correctly:

========================================================================
=================
# stat /dev/ipmi0
File: `/dev/ipmi0'
Size: 0 Blocks: 0 IO Block: 4096
character special file
Device: dh/13d Inode: 8455 Links: 1 Device type: fd,0
Access: (0644/crw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2008-05-21 12:10:48.765165105 +0200
Modify: 2008-05-21 12:10:48.765165105 +0200
Change: 2008-05-21 12:11:06.427094355 +0200
========================================================================
=================

What can I do to get the CPU temperature in this motherboard? Thanks!!

Regards,

--
Santi Saez


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Ron Johnson

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May 21, 2008, 9:10:11 AM5/21/08
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Hash: SHA1

Did you go to the mentioned web site to look to see whether the
PC87427 is supported by lm-sensors 2.10.1-3?

- --
Ron Johnson, Jr.
Jefferson LA USA

ESPN makes baseball players better.
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Brian Schrock

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May 21, 2008, 10:20:16 AM5/21/08
to
I use Supermicro motherboards, and assuming you did install the ipmi card (it is not included on any of our motherboards (H6DH8, X5DP8,X7DB8)), you need to load the ipmi kernel modules.

ipmi_devintf
ipmi_msghandler
ipmi_poweroff
ipmi_si
ipmi_watchdog

You should see something below in your dmesg if you have the card...

# grep "ipmi" /var/log/dmesg
ipmi message handler version 39.0
ipmi device interface
ipmi_si: Trying SMBIOS-specified KCS state machine at I/O address 0xca2, slave address 0x20, irq 0
ipmi: Found new BMC (man_id: 0x0028c5,  prod_id: 0x0004, dev_id: 0x22)

And assuming you get all of that working....
# ipmitool sensor
CPU Temp 1       | 21.000     | degrees C  | ok    | na        | na        | na        | 76.000    | 78.000    | 80.000
CPU Temp 2       | 24.000     | degrees C  | ok    | na        | na        | na        | 76.000    | 78.000    | 80.000
CPU Temp 3       | na         | degrees C  | na    | na        | na        | na        | 76.000    | 78.000    | 80.000
CPU Temp 4       | na         | degrees C  | na    | na        | na        | na        | 76.000    | 78.000    | 80.000
Sys Temp         | 25.000     | degrees C  | ok    | na        | na        | na        | 76.000    | 78.000    | 80.000
CPU1 Vcore       | 1.176      | Volts      | ok    | 1.056     | 1.064     | 1.072     | 1.624     | 1.632     | 1.640
CPU2 Vcore       | 1.200      | Volts      | ok    | 1.056     | 1.064     | 1.072     | 1.624     | 1.632     | 1.640
3.3V             | 3.312      | Volts      | ok    | 2.912     | 2.928     | 2.944     | 3.648     | 3.664     | 3.680
5V               | 4.968      | Volts      | ok    | 4.416     | 4.440     | 4.464     | 5.520     | 5.544     | 5.568
12V              | 11.808     | Volts      | ok    | 10.464    | 10.560    | 10.656    | 13.344    | 13.440    | 13.536
-12V             | -12.100    | Volts      | ok    | -10.500   | -10.600   | -10.700   | -13.300   | -13.400   | -13.500
1.5V             | 1.488      | Volts      | ok    | 1.296     | 1.312     | 1.328     | 1.664     | 1.680     | 1.696
5VSB             | 4.944      | Volts      | ok    | 4.416     | 4.440     | 4.464     | 5.520     | 5.544     | 5.568
VBAT             | 3.200      | Volts      | ok    | 2.912     | 2.928     | 2.944     | 3.648     | 3.664     | 3.680
Fan1             | 5100.000   | RPM        | ok    | 200.000   | 300.000   | 400.000   | na        | na        | na
Fan2             | 5100.000   | RPM        | ok    | 200.000   | 300.000   | 400.000   | na        | na        | na
Fan3             | 5100.000   | RPM        | ok    | 200.000   | 300.000   | 400.000   | na        | na        | na
Fan4             | 0.000      | RPM        | nr    | 200.000   | 300.000   | 400.000   | na        | na        | na
Fan5             | 0.000      | RPM        | nr    | 200.000   | 300.000   | 400.000   | na        | na        | na
Fan6             | 0.000      | RPM        | nr    | 200.000   | 300.000   | 400.000   | na        | na        | na
Fan7/CPU1        | 0.000      | RPM        | nr    | 200.000   | 300.000   | 400.000   | na        | na        | na
Fan8/CPU2        | 0.000      | RPM        | nr    | 200.000   | 300.000   | 400.000   | na        | na        | na
Intrusion        | 0x0        | discrete   | 0x0000| na        | na        | na        | na        | na        | na
Power Supply     | 0x0        | discrete   | 0x0000| na        | na        | na        | na        | na        | na
CPU0 Internal E  | 0x0        | discrete   | 0x0000| na        | na        | na        | na        | na        | na
CPU1 Internal E  | 0x0        | discrete   | 0x0000| na        | na        | na        | na        | na        | na
CPU Overheat     | 0x0        | discrete   | 0x0000| na        | na        | na        | na        | na        | na
Thermal Trip0    | 0x0        | discrete   | 0x0000| na        | na        | na        | na        | na        | na
Thermal Trip1    | 0x0        | discrete   | 0x0000| na        | na        | na        | na        | na        | na

That will be your output...

I cannot help you on the lm-sensors route, I have never found that stuff particularly reliable so we don't use it.

Ron Johnson

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May 21, 2008, 10:30:22 AM5/21/08
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*I* did. But then, I'm not the OP.

- --
Ron Johnson, Jr.
Jefferson LA USA

ESPN makes baseball players better.
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Hugo Vanwoerkom

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May 21, 2008, 12:10:21 PM5/21/08
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Let's see. How do I say this... The suspense is killing me... *Is the
PC87427 chip supported?*


Hugo

Ron Johnson

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May 21, 2008, 12:20:16 PM5/21/08
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On 05/21/08 11:02, Hugo Vanwoerkom wrote:


> Ron Johnson wrote:
>>
>> On 05/21/08 09:01, Brian Schrock wrote:

[snip]


>>> Did you go to the mentioned web site to look to see whether the
>>> PC87427 is supported by lm-sensors 2.10.1-3?
>>
>> *I* did. But then, I'm not the OP.
>>
>
> Let's see. How do I say this... The suspense is killing me... *Is the
> PC87427 chip supported?*

http://www.lm-sensors.org/wiki/Devices knows all, tells all.

- --
Ron Johnson, Jr.
Jefferson LA USA

ESPN makes baseball players better.
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Florian Kulzer

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May 21, 2008, 1:40:23 PM5/21/08
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On Wed, May 21, 2008 at 09:22:44 -0500, Ron Johnson wrote:
> On Wed, May 21, 2008 at 08:02:42 -0500, Ron Johnson wrote:

[...]

> > Did you go to the mentioned web site to look to see whether the
> > PC87427 is supported by lm-sensors 2.10.1-3?
>
> *I* did. But then, I'm not the OP.

Why are you talking to yourself? ;)

--
Regards, | http://users.icfo.es/Florian.Kulzer
Florian |

Florian Kulzer

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May 21, 2008, 1:50:18 PM5/21/08
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On Wed, May 21, 2008 at 13:45:19 +0200, Santi Saez wrote:
>
> Dear Srs,
>
> I need to get the CPU temperature in a Supermicro X6DH8-XG2 motherboard,
> this is the link for key features:
>
> http://www.supermicro.com/products/motherboard/Xeon800/E7520/X6DH8-
> XG2.cfm

[...]

> # modprobe -l | grep lm93
> # modprobe lm93
> FATAL: Module lm93 not found.

Are you using Etch? The 2.6.18 kernel does not have this module. I think
you need at least 2.6.23.

--
Regards, | http://users.icfo.es/Florian.Kulzer
Florian |

Hugo Vanwoerkom

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May 21, 2008, 4:00:17 PM5/21/08
to
Florian Kulzer wrote:
> On Wed, May 21, 2008 at 13:45:19 +0200, Santi Saez wrote:
>> Dear Srs,
>>
>> I need to get the CPU temperature in a Supermicro X6DH8-XG2 motherboard,
>> this is the link for key features:
>>
>> http://www.supermicro.com/products/motherboard/Xeon800/E7520/X6DH8-
>> XG2.cfm
>
> [...]
>
>> # modprobe -l | grep lm93
>> # modprobe lm93
>> FATAL: Module lm93 not found.
>
> Are you using Etch? The 2.6.18 kernel does not have this module. I think
> you need at least 2.6.23.
>

http://www.lm-sensors.org/wiki/Devices

says you need 2.6.20

Hugo

Celejar

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May 22, 2008, 7:40:16 PM5/22/08
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On Wed, 21 May 2008 19:17:03 +0200
Florian Kulzer <florian.ku...@icfo.es> wrote:

> On Wed, May 21, 2008 at 09:22:44 -0500, Ron Johnson wrote:
> > On Wed, May 21, 2008 at 08:02:42 -0500, Ron Johnson wrote:
>
> [...]
>
> > > Did you go to the mentioned web site to look to see whether the
> > > PC87427 is supported by lm-sensors 2.10.1-3?
> >
> > *I* did. But then, I'm not the OP.
>
> Why are you talking to yourself? ;)

"What? In riddles? said Gandalf. "No! For I was talking
aloud to myself. A habit of the old: they choose the wisest person
present to speak to; the long explanations needed by the young are
wearying."

http://books.google.com/books?id=H9uykGk18WQC&pg=PA485&lpg=PA485&dq=gandalf+wisest+person+present&source=web&ots=2ASu-IQFXk&sig=rYoZI8phP59O2yBSxwfnERX8FMw

> Florian |

Celejar
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Santi Saez

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May 27, 2008, 1:10:19 PM5/27/08
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El 21/05/2008, a las 21:56, Hugo Vanwoerkom escribió:

> Florian Kulzer wrote:
>> On Wed, May 21, 2008 at 13:45:19 +0200, Santi Saez wrote:
>>> Dear Srs,
>>>
>>> I need to get the CPU temperature in a Supermicro X6DH8-XG2
>>> motherboard, this is the link for key features:
>>>
>>> http://www.supermicro.com/products/motherboard/Xeon800/E7520/
>>> X6DH8- XG2.cfm
>> [...]
>>> # modprobe -l | grep lm93
>>> # modprobe lm93
>>> FATAL: Module lm93 not found.
>> Are you using Etch? The 2.6.18 kernel does not have this module. I
>> think
>> you need at least 2.6.23.
>
> http://www.lm-sensors.org/wiki/Devices
>
> says you need 2.6.20

Thanks all for your replys :-)

I upgrade to Linux 2.6.25.4 and lm-sensors 3.0.2-1 and now I can get
values from LM93 chip, example output:

===============================================================
# sensors
lm93-i2c-0-2e
Adapter: SMBus I801 adapter at 1100
in1: +0.94 V (min = +0.83 V, max = +1.02 V)
in2: +0.94 V (min = +0.83 V, max = +1.02 V)
in3: +0.94 V (min = +0.83 V, max = +1.02 V)
in4: +1.21 V (min = +1.08 V, max = +1.32 V)
in5: +1.49 V (min = +1.35 V, max = +1.66 V)
in6: +1.50 V (min = +1.35 V, max = +1.66 V)
in7: +1.35 V (min = +1.02 V, max = +1.54 V)
in8: +1.36 V (min = +1.02 V, max = +1.54 V)
in9: +3.35 V (min = +2.97 V, max = +3.64 V)
in10: +5.04 V (min = +4.47 V, max = +5.49 V)
in11: +0.00 V (min = +2.25 V, max = +2.76 V)
in12: +1.79 V (min = +1.77 V, max = +2.17 V)
in13: +1.19 V (min = +0.89 V, max = +1.09 V)
in14: +0.97 V (min = +0.89 V, max = +1.09 V)
in15: +0.30 V (min = +0.07 V, max = +0.54 V)
in16: +3.41 V (min = +2.97 V, max = +3.63 V)
fan1: 0 RPM (min = 0 RPM)
fan2: 0 RPM (min = 0 RPM)
fan3: 0 RPM (min = 0 RPM)
fan4: 0 RPM (min = 0 RPM)
temp1: +33.0°C (low = -128.0°C, high = -128.0°C)
temp2: +35.0°C (low = -128.0°C, high = -128.0°C)
temp3: +27.0°C (low = -128.0°C, high = +50.0°C)
cpu0_vid: +1.088 V
cpu1_vid: +1.088 V
===============================================================

But I think that this chipset is not fully supported in lm-sensors
already, I do not know what temperatures refences temp1, temp2 and
temp3 params.. maybe physical processors and mother board.. I will
ask in the m-sensors mailing list..

There's no way to get thermal information information via ACPI in
this motherboard? I get this error when running "acpi":

# modprobe thermal
# acpi --thermal
No support for device type: thermal

Regards,

--
Santi Saez

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