[lm-sensors] EMC6W201 module - Dell Sensors Testing

[lm-sensors] EMC6W201 module - Dell Sensors Testing

[Jeff Rickman]

-------- Original Message --------
Date: 	Tue, 17 May 2011 19:50:00 -0400


Download emc6w201 files.
Did not need "i2c-compat.h" file since my kernel > 2.6.32

Output of "uname -a"
Linux XX.xx.xx.xx 2.6.35.12-90.fc14.x86_64 #1 SMP Fri Apr 22 16:01:29
UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
Platform is Dell Precision 670 Workstation with A07 BIOS

CPU info
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.00GHz
stepping : 1
cpu MHz : 750.000 ("cpuspeed" package is enabled)
cache size : 1024 KB

Compile the emc6w201 module
Copy provided "emc6w201.conf" file to "/etc/sensors.d" directory

Run "modprobe -v emc6w201"
No faults on Console. No faults captured to Syslog
Run "sensors". System kicks me out.
Reboot required
Unable to duplicate issue with "sensors"
Reboot

Run "modprobe -v emc6w201" without using "i8k" module
No errors on Console. No errors in Syslog.
"emc6w201" module installs

Selected "lsmod" output
Module Size Used by
emc6w201 8742 0
~SNIP~
i2c_core 27212 6 emc6w201,i2c_i801,nouveau,drm_kms_helper,drm,i2c_algo_bit

Output from "sensors"
emc6w201-i2c-2-2e
Adapter: SMBus I801 adapter at ece0
in0: +1.80 V (min = +1.64 V, max = +1.98 V)
in1: +1.36 V (min = +0.78 V, max = +1.70 V)
+3.3V: +3.38 V (min = +3.08 V, max = +3.52 V)
+5V: +5.08 V (min = +4.66 V, max = +5.34 V)
in4: +1.51 V (min = +1.40 V, max = +1.60 V)
in5: +1.35 V (min = +0.78 V, max = +1.70 V)
fan1: 1498 RPM (min = 300 RPM)
fan2: 1795 RPM (min = 300 RPM)
fan3: 1899 RPM (min = 200 RPM)
fan4: 0 RPM (min = 82 RPM)
fan5: 0 RPM (min = 82 RPM)
temp1: +46.0°C (low = -127.0°C, high = +88.0°C)
temp2: +48.0°C (low = -127.0°C, high = +88.0°C)
temp3: +45.0°C (low = -127.0°C, high = +60.0°C)
temp4: +41.0°C (low = -127.0°C, high = +55.0°C)
temp5: +44.0°C (low = -127.0°C, high = +75.0°C)
Case Temp: +42.0°C (low = -127.0°C, high = +80.0°C)

My own guesses at voltages since I am not near this machine right now...
in0 could be VDIMM since "lshw" reports 400MHz DDR memory
in4 could be +12V and requires a *8 scaling factor.
in1 & in5 could be Vcore lines??

If time permits, I need to carefully check voltage lines inside the 
system with a digital VOM to compare to "sensors" output. Next, I want 
to pull a memory stick or two to see if they are DDR or DDR2. Then I 
need to do "load" experiments in an attempt to identify the physical 
CPUs in the "sensors" output.

Since this system has 2 physical CPU packages and each CPU has
hyperthreading enabled, I wonder which temp sensors from [1-5] would be
useful?

I noticed that "coretemp" does not load on this platform. Perhaps the
platform/CPU/whatever is too old or not instrumented for "coretemp", or 
"coretemp" isn't instrumented for this Intel CPU family?

I will have to inspect this system to see if the physical fans are
3-wire or PWM and what fan headers are on the motherboard and how/if 
they are identified.


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Re: [lm-sensors] EMC6W201 module - Dell Sensors Testing

[Jean Delvare]

[-- Attachment #1: Type: text/plain, Size: 5131 bytes --]

Hi Jeff,

On Tue, 17 May 2011 19:07:45 -0500, Jeff Rickman wrote:
> Download emc6w201 files.
> Did not need "i2c-compat.h" file since my kernel > 2.6.32
> 
> Output of "uname -a"
> Linux XX.xx.xx.xx 2.6.35.12-90.fc14.x86_64 #1 SMP Fri Apr 22 16:01:29
> UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
> Platform is Dell Precision 670 Workstation with A07 BIOS
> 
> CPU info
> vendor_id : GenuineIntel
> cpu family : 15
> model : 4
> model name : Intel(R) Xeon(TM) CPU 3.00GHz
> stepping : 1
> cpu MHz : 750.000 ("cpuspeed" package is enabled)
> cache size : 1024 KB
> 
> Compile the emc6w201 module
> Copy provided "emc6w201.conf" file to "/etc/sensors.d" directory
> 
> Run "modprobe -v emc6w201"
> No faults on Console. No faults captured to Syslog
> Run "sensors". System kicks me out.
> Reboot required
> Unable to duplicate issue with "sensors"
> Reboot
> 
> Run "modprobe -v emc6w201" without using "i8k" module
> No errors on Console. No errors in Syslog.
> "emc6w201" module installs
> 
> Selected "lsmod" output
> Module Size Used by
> emc6w201 8742 0
> ~SNIP~
> i2c_core 27212 6 emc6w201,i2c_i801,nouveau,drm_kms_helper,drm,i2c_algo_bit
> 
> Output from "sensors"
> emc6w201-i2c-2-2e
> Adapter: SMBus I801 adapter at ece0
> in0: +1.80 V (min = +1.64 V, max = +1.98 V)
> in1: +1.36 V (min = +0.78 V, max = +1.70 V)
> +3.3V: +3.38 V (min = +3.08 V, max = +3.52 V)
> +5V: +5.08 V (min = +4.66 V, max = +5.34 V)
> in4: +1.51 V (min = +1.40 V, max = +1.60 V)
> in5: +1.35 V (min = +0.78 V, max = +1.70 V)
> fan1: 1498 RPM (min = 300 RPM)
> fan2: 1795 RPM (min = 300 RPM)
> fan3: 1899 RPM (min = 200 RPM)
> fan4: 0 RPM (min = 82 RPM)
> fan5: 0 RPM (min = 82 RPM)
> temp1: +46.0°C (low = -127.0°C, high = +88.0°C)
> temp2: +48.0°C (low = -127.0°C, high = +88.0°C)
> temp3: +45.0°C (low = -127.0°C, high = +60.0°C)
> temp4: +41.0°C (low = -127.0°C, high = +55.0°C)
> temp5: +44.0°C (low = -127.0°C, high = +75.0°C)
> Case Temp: +42.0°C (low = -127.0°C, high = +80.0°C)

Thanks a lot for the detailed report. And glad to see that my driver
works for you :)

> My own guesses at voltages since I am not near this machine right now...
> in0 could be VDIMM since "lshw" reports 400MHz DDR memory
> in4 could be +12V and requires a *8 scaling factor.
> in1 & in5 could be Vcore lines??

Yes, this was exactly my guess as well, in line with Harry's single-CPU
setup.

> If time permits, I need to carefully check voltage lines inside the 
> system with a digital VOM to compare to "sensors" output. Next, I want 
> to pull a memory stick or two to see if they are DDR or DDR2. Then I 
> need to do "load" experiments in an attempt to identify the physical 
> CPUs in the "sensors" output.

You shouldn't have to tear apart the memory modules, as I can think of
2 ways to get the information without hardware interaction. Not that it
should be needed anyway, as the Dell documentation is pretty clear that
this workstation uses DDR2 memory.

1* Use the eeprom kernel driver together with the decode-dimms script
from i2c-tools:
# modprobe eeprom
$ decode-dimms

2* Use dmidecode:
# dmidecode -t memory

> Since this system has 2 physical CPU packages and each CPU has
> hyperthreading enabled, I wonder which temp sensors from [1-5] would be
> useful?

External temperature monitoring (as opposed to embedded digital
sensors) is per-CPU or per-socket, so hyper-threading doesn't come into
play.

We are lucky that Harry has a single-CPU machine and you have a
dual-CPU one. So the sensors you have and he lacks are likely to be
related to CPU 2. These are clearly fan2 and temp2.

The similar high limit for temp1 and temp2 leads me to the conclusion
that temp1 is CPU1 and temp2 is CPU2. temp6 is a sensor on the EMC6W201
itself, so it's the board temperature.

Harry also lacks temp3 and temp4, I admit I don't understand why. temp3
to temp5 all have different limits so they don't seem to be paired and
thus wouldn't be related to the presence or absence of a second CPU. I
have no idea where these sensors are.

> I noticed that "coretemp" does not load on this platform. Perhaps the
> platform/CPU/whatever is too old or not instrumented for "coretemp", or 
> "coretemp" isn't instrumented for this Intel CPU family?

The CPU family is indeed too old, it did not include digital sensors.
So it is expected that coretemp won't work.

> I will have to inspect this system to see if the physical fans are
> 3-wire or PWM and what fan headers are on the motherboard and how/if 
> they are identified.

3-wire and PWM isn't incompatible. People started controlling their
fans with PWM long before 4-wire fans hit the market.

One remaining question for fans is how CPU1 fan and chassis Fan map to
fan1 and fan3. The similar limits for fan1 and fan2 would suggest that
fan1 is the CPU1 fan, however Harry's conclusions were opposite.

I have attached my current attempt at a configuration file for your
system, please give it a try.

-- 
Jean Delvare
http://khali.linux-fr.org/wishlist.html

[-- Attachment #2: sensors3-Dell-Precision-670.conf --]
[-- Type: text/plain, Size: 966 bytes --]

# lm-sensors 3 configuration file for the Dell Precision 670 workstation
# 2011-05-18, Jean Delvare <khali@linux-fr.org>
# Thanks to Harry G McGavran Jr and Jeff Rickman for their feedback.

chip "emc6w201-*"

### Voltages

   # For dual-CPU setups
   label  in0  "Vram"
   label  in1  "Vcore1"
   label  in2  "+3.3V"
   label  in3  "+5V"
   label  in4  "+12V"
   label  in5  "Vcore2"

   # For single-CPU setups
   #label  in1  "Vcore"
   #ignore in5

   compute in4  @ * 8, @ / 8

### Fans

   # fan1 and fan3 may be swapped.

   # For dual-CPU setups
   label  fan1  "CPU1 Fan"
   label  fan2  "CPU2 Fan"
   label  fan3  "Chassis Fan"
   ignore fan4
   ignore fan5

   # For single-CPU setups
   #label  fan1  "CPU Fan"
   #ignore fan2

### Temperatures

   # No idea what temp3, temp4 and temp5 are.

   label  temp1  "CPU1 Temp"
   label  temp2  "CPU2 Temp"
   label  temp6  "Case Temp"

   # For single-CPU setups
   #label  temp1  "CPU Temp"
   #ignore temp2

[-- Attachment #3: Type: text/plain, Size: 153 bytes --]

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Re: [lm-sensors] EMC6W201 module - Dell Sensors Testing

[Harry G McGavran Jr]

For Voltages, the dual-CPU and single-CPU setups
seem to be the same (except singles should ingnore
in5).

For Fans -- this wasn't so clear because I was partly going
by what some Windows sensors programs report to decide what
they were.

HWiNFO32 reports the CPU Fan and Chassis Fan swapped from I 
had decided.  CPUID reported what I had decided.

I decided which was which based on which fan speed went up
with heavy CPU use. Normally my CPU runs at 129F, but if
I am compiling a very large program it will run up to
151F.  The fan speed that increases the most (by several hundred
RPM) was the one I decided to call CPU which is what CPUID decided.
But who knows without running with the case open and watching.

It very well could be I have the fans backwards.
Single CPUs should ignore fan2, fan4 and fan5.

For Temperatures, HWiNFO32 reports only my first hard drive temperature.
CPUID reports the CPU, Remote Diode 5 and Mainboard temperatures,
so That's what I named them.  Looking at the emc6w201 data sheet
shows temp 5 as "Remote Diode 5" which is what CPUID called it.
Who knows what it is hooked to. Temp6 is "mainboard" or "chassis"
pretty clearly and temp1 is CPU1.  Apparently temp2 is CPU2
for those who have it, so MAYBE fan1 is really the CPU fan
if the scheme is the same, but who knows what one can count on.

	Harry McGavran







-- 

Harry G. McGavran, Jr.

E-mail: w5pny@w5pny.com




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Re: [lm-sensors] EMC6W201 module - Dell Sensors Testing

[Harry G McGavran Jr]

[-- Attachment #1: Type: text/plain, Size: 56 bytes --]


Here is my stab at a conf file.

    Harry McGavran




[-- Attachment #2: sensors3a-Dell-Precision-670.conf --]
[-- Type: application/octet-stream , Size: 1312 bytes --]

# lm-sensors 3 configuration file for the Dell Precision 670 workstation
# 2011-05-18, Jean Delvare <khali@linux-fr.org>
# Thanks to Harry G McGavran Jr and Jeff Rickman for their feedback.

chip "emc6w201-*"

### Voltages

   # For dual-CPU setups
   label  in0  "Vram"
   label  in1  "Vcore1"
   label  in2  "+3.3V"
   label  in3  "+5V"
   label  in4  "+12V"
   label  in5  "Vcore2"

   # For single-CPU setups
   #label  in0  "Vram"
   #label  in1  "Vcore"
   #label  in2  "+3.3V"
   #label  in3  "+5V"
   #label  in4  "+12V"
   #ingore in5

   compute in4  @ * 8, @ / 8

### Fans

   # fan1 and fan3 may be swapped.

   # For dual-CPU setups
   label  fan1  "CPU1 Fan"
   label  fan2  "CPU2 Fan"
   label  fan3  "Chassis Fan"
   ignore fan4
   ignore fan5

   # For single-CPU setups
   #label  fan1  "CPU Fan"
   #ignore fan2
   #label  fan3  "Chassis Fan"
   #ignore fan4
   #ignore fan5

### Temperatures

   # No idea what temp3, temp4 and temp5 are.

   # For Dual-CPU setups
   label  temp1  "CPU1 Temp"
   label  temp2  "CPU2 Temp"
   ignore temp3
   ignore temp4
   label  temp5  "Remote Diode 5"
   label  temp6  "Case Temp"

   # For single-CPU setups
   #label  temp1  "CPU Temp"
   #ignore temp2
   #ignore temp3
   #ignore temp4
   #label  temp5  "Remote Diode 5"
   #label  temp6  "Case Temp"


[-- Attachment #3: Type: text/plain, Size: 50 bytes --]


Harry G. McGavran, Jr.

E-mail: w5pny@w5pny.com


[-- Attachment #4: Type: text/plain, Size: 153 bytes --]

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Re: [lm-sensors] EMC6W201 module - Dell Sensors Testing

[Harry G McGavran Jr]

[-- Attachment #1: Type: text/plain, Size: 155 bytes --]


I had misspelled "ignore" for in5 in that conf file
in a line that was commented out for single-CPUs.

This fixes that...  Oh well...

	Harry McGavran




[-- Attachment #2: sensors3a-Dell-Precision-670.conf --]
[-- Type: application/octet-stream , Size: 1312 bytes --]

# lm-sensors 3 configuration file for the Dell Precision 670 workstation
# 2011-05-18, Jean Delvare <khali@linux-fr.org>
# Thanks to Harry G McGavran Jr and Jeff Rickman for their feedback.

chip "emc6w201-*"

### Voltages

   # For dual-CPU setups
   label  in0  "Vram"
   label  in1  "Vcore1"
   label  in2  "+3.3V"
   label  in3  "+5V"
   label  in4  "+12V"
   label  in5  "Vcore2"

   # For single-CPU setups
   #label  in0  "Vram"
   #label  in1  "Vcore"
   #label  in2  "+3.3V"
   #label  in3  "+5V"
   #label  in4  "+12V"
   #ingore in5

   compute in4  @ * 8, @ / 8

### Fans

   # fan1 and fan3 may be swapped.

   # For dual-CPU setups
   label  fan1  "CPU1 Fan"
   label  fan2  "CPU2 Fan"
   label  fan3  "Chassis Fan"
   ignore fan4
   ignore fan5

   # For single-CPU setups
   #label  fan1  "CPU Fan"
   #ignore fan2
   #label  fan3  "Chassis Fan"
   #ignore fan4
   #ignore fan5

### Temperatures

   # No idea what temp3, temp4 and temp5 are.

   # For Dual-CPU setups
   label  temp1  "CPU1 Temp"
   label  temp2  "CPU2 Temp"
   ignore temp3
   ignore temp4
   label  temp5  "Remote Diode 5"
   label  temp6  "Case Temp"

   # For single-CPU setups
   #label  temp1  "CPU Temp"
   #ignore temp2
   #ignore temp3
   #ignore temp4
   #label  temp5  "Remote Diode 5"
   #label  temp6  "Case Temp"


[-- Attachment #3: Type: text/plain, Size: 50 bytes --]


Harry G. McGavran, Jr.

E-mail: w5pny@w5pny.com


[-- Attachment #4: Type: text/plain, Size: 153 bytes --]

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Re: [lm-sensors] EMC6W201 module - Dell Sensors Testing

[Harry G McGavran Jr]

[-- Attachment #1: Type: text/plain, Size: 117 bytes --]


This just isn't my day.  I sent the wrong file a second time.

Maybe the third time is a charm.

	Harry McGavran




[-- Attachment #2: sensors3a-Dell-Precision-670.conf --]
[-- Type: application/octet-stream , Size: 1312 bytes --]

# lm-sensors 3 configuration file for the Dell Precision 670 workstation
# 2011-05-18, Jean Delvare <khali@linux-fr.org>
# Thanks to Harry G McGavran Jr and Jeff Rickman for their feedback.

chip "emc6w201-*"

### Voltages

   # For dual-CPU setups
   label  in0  "Vram"
   label  in1  "Vcore1"
   label  in2  "+3.3V"
   label  in3  "+5V"
   label  in4  "+12V"
   label  in5  "Vcore2"

   # For single-CPU setups
   #label  in0  "Vram"
   #label  in1  "Vcore"
   #label  in2  "+3.3V"
   #label  in3  "+5V"
   #label  in4  "+12V"
   #ignore in5

   compute in4  @ * 8, @ / 8

### Fans

   # fan1 and fan3 may be swapped.

   # For dual-CPU setups
   label  fan1  "CPU1 Fan"
   label  fan2  "CPU2 Fan"
   label  fan3  "Chassis Fan"
   ignore fan4
   ignore fan5

   # For single-CPU setups
   #label  fan1  "CPU Fan"
   #ignore fan2
   #label  fan3  "Chassis Fan"
   #ignore fan4
   #ignore fan5

### Temperatures

   # No idea what temp3, temp4 and temp5 are.

   # For Dual-CPU setups
   label  temp1  "CPU1 Temp"
   label  temp2  "CPU2 Temp"
   ignore temp3
   ignore temp4
   label  temp5  "Remote Diode 5"
   label  temp6  "Case Temp"

   # For single-CPU setups
   #label  temp1  "CPU Temp"
   #ignore temp2
   #ignore temp3
   #ignore temp4
   #label  temp5  "Remote Diode 5"
   #label  temp6  "Case Temp"


[-- Attachment #3: Type: text/plain, Size: 50 bytes --]


Harry G. McGavran, Jr.

E-mail: w5pny@w5pny.com


[-- Attachment #4: Type: text/plain, Size: 153 bytes --]

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Re: [lm-sensors] EMC6W201 module - Dell Sensors Testing

[Harry G McGavran Jr]

I think the other windows sensors program I have is correct and
that fan1 is the CPU fan and fan3 is the Case or Chassis fan.

I think that's they Rick found it, and I think that is the
way it is on my system too.

So, that last .conf file I posted for Dell 670 and emc6w201
should be correct.  It would be nice to know what "Remote Diode 5"
is really temperature sensing. 

	Harry McGavran



-- 

Harry G. McGavran, Jr.

E-mail: w5pny@w5pny.com




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Re: [lm-sensors] EMC6W201 module - Dell Sensors Testing

[Jean Delvare]

On Sat, 21 May 2011 17:04:28 -0600, Harry G McGavran Jr wrote:
> 
> I think the other windows sensors program I have is correct and
> that fan1 is the CPU fan and fan3 is the Case or Chassis fan.
> 
> I think that's they Rick found it, and I think that is the
> way it is on my system too.
> 
> So, that last .conf file I posted for Dell 670 and emc6w201
> should be correct.

OK, thanks for the information, I've updated my copy accordingly.

> It would be nice to know what "Remote Diode 5" is really
> temperature sensing.

I can think of only two ways to know:
1* Find the information in the documentation, or ask Dell.
2* Try to guess with physical experiments. Either by correlating the
   variations with specific system activity, or using a hair dryer :)
   I've done it once, and it works, but I'm not sure the motherboard
   really enjoyed it.

-- 
Jean Delvare

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