Re: [lm-sensors] Config for MSI X58 Pro-E (MS-7522)

[Olaf Mandel <olaf@mandel.name>]

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Am 22.08.2010 16:13, schrieb Jean Delvare:
> On Sun, 22 Aug 2010 15:13:05 +0200, Olaf Mandel wrote:
-Snipp-
> 
> The problem is that you compared the Vcore in BIOS, without CPU
> frequency scaling, with Vcore in sensors, with CPU frequency scaling
> enabled (as can be seen from the two outputs below.) This isn't fair!
> 
Hi Jean,

I have to agree, the previous compute line was wrong.

> If you compare with Linux underload instead, you see Vcore (unscaled)
> at 1.12 V. This is definitely not 35% off compared to the BIOS's report
> of 1.224 V. To be honest, I would have expected both values to match
> exactly. I get to suspect that your Linux system is configured to
> prevent the CPU to enter the highest frequency states, you may want to
> check this.
> 
That was indeed the case: thermal_throttle was limiting the clock speed.
I checked the voltage by setting the clock speed manually and it gets at
least closer.

-Snipp-
> 
> Your CPU cooling seems insufficient. A 56°C difference between idle and
> load is very, very much. I'd be worried.
> 
It only gets hot if I run many instances of burnK7. If I just up the
clock speed, it doesn't get hot.

-Snipp-
> When you have come up with a "final" configuration file, please send it
> over, and I'll put it on the wiki.
> 

Ok, it's attached to the mail. It remained nearly unchanged, except for
the compute lines and the limits you suggested. The two non-trivial
compute lines are taken from comparison of values (BIOS<->sensors) and
then searching the nearest simple voltage divider that would work. The
values are pure guesses!

Thank you again for your help!

Best regards,
Olaf Mandel
-- 
Olaf Mandel   <olaf@mandel.name>   <http://www.olaf.mandel.name/>
PGP key:      1024D/33398848 2002-09-19
Fingerprint:  0E33 BEA6 1A71 9C5E 62BD  FC0E 99A7 D2C6 3339 8848

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# configuration for the Fintek f71882fg as used on the MSI X58 Pro-E (MS-7522)
chip "f71882fg-*"

# Temperature
    label   temp1 "CPU"
    label   temp2 "IOH"
    label   temp3 "System"

# Fans
    label   fan1  "CPU"
    label   fan2  "System 1" # This is not confirmed
    label   fan3  "System 2"
    ignore  fan2
    ignore  fan4

# Voltage
    label   in0   "3.3V"
    label   in1   "Vcore"
    ignore  in2
    ignore  in3
    label   in4   "5V"
    label   in5   "12V"
    ignore  in6
    label   in7   "3VSB"
    label   in8   "Vbat"
    compute in0   (@ * 2), (@ / 2) # Hardwired in chip, don't change
    compute in1   @, @
    compute in4   (@ * 5.25), (@ / 5.25) # E24: (12 + 51) / 12
    compute in5   (@ * 11), (@ / 11)     # E6:  ( 1 + 10) /  1
    compute in7   (@ * 2), (@ / 2) # Hardwired in chip, don't change
    compute in8   (@ * 2), (@ / 2) # Hardwired in chip, don't change

# Thresholds
    set in1_max           1.3
    set temp1_max        85
    set temp1_max_hyst   82
    set temp1_crit      100
    set temp1_crit_hyst  97
    set temp2_max        75
    set temp2_max_hyst   72
    set temp2_crit       85
    set temp2_crit_hyst  82
    set temp3_max        55
    set temp3_max_hyst   52
    set temp3_crit       65
    set temp3_crit_hyst  62

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