one more time I need the help of the masters... :-)
I have a weird server that does not have the regular values values inside
/proc for fan speed control. The files inside
/proc/sys/dev/sensors/lm85-i2c-0-2e are
-rw-r--r-- 1 root root 0 Feb 13 03:32 fan1
-rw-r--r-- 1 root root 0 Feb 13 03:32 fan2
-rw-r--r-- 1 root root 0 Feb 13 03:32 fan3
-rw-r--r-- 1 root root 0 Feb 13 03:32 pwm1
-rw-r--r-- 1 root root 0 Feb 13 03:32 pwm1_cfg
-rw-r--r-- 1 root root 0 Feb 13 03:32 pwm1_zone
-rw-r--r-- 1 root root 0 Feb 13 03:32 pwm2
-rw-r--r-- 1 root root 0 Feb 13 03:32 pwm2_cfg
-rw-r--r-- 1 root root 0 Feb 13 03:32 pwm2_zone
-rw-r--r-- 1 root root 0 Feb 13 03:32 pwm3
-rw-r--r-- 1 root root 0 Feb 13 03:32 pwm3_cfg
-rw-r--r-- 1 root root 0 Feb 13 03:32 pwm3_zone
The content of fanX is like:
cat fan1
4800 9424
cat fan2
4800 6271
cat fan3
2200 11226
Where the first field is the minimim RPM and the second is the actual RPM
The content of pwmX_zone is like:
cat pwm1_zone
1
cat pwm2_zone
3
cat pwm3_zone
1
I have no idea what those are.
The content of the pwmX_cfg is like:
cat pwm1_cfg
0.2 64.0 38.0 1.0 0.0
cat pwm2_cfg
0.2 64.0 98.0 1.0 0.0
cat pwm3_cfg
0.2 64.0 38.0 1.0 0.0
Also, no idea what each value represents.
The first weird thing is that when you go to the bios there is a section
that shows you the real time rpms of the fans. If I disconnect one fan at
the time, I can identify which fan is which. There are 2 fans in the front,
the one in the front right is #1, front left is # 2 and back left is # 3.
Sensors reports them differently I think for example.
Fan1: 9310 RPM (min = 4800 RPM)
Fan2: 6264 RPM (min = 4800 RPM)
Fan3: 11157 RPM (min = 2200 RPM)
If I disconnect fan 1 it thinks is fan 3 and vice versa. Here is my
sensors.conf
chip "lm85-*" "adt7463-*"
ignore pwm1
ignore pwm2
ignore pwm3
ignore in4
ignore fan4
label fan1 "Fan1"
label fan2 "Fan2"
label fan3 "Fan3"
label pwm1 "pwm1 fan"
label pwm2 "pwm2 fan"
label pwm3 "pwm3 fan"
set fan1_min 4800
set fan2_min 4800
set fan3_min 2200
pwmconfig fails as it does not recognize the values from the /proc files.
Has anyone experience this and any idea how to control the speed?
I can slow them down by playing with values like
echo "0.2 10.0 38.0 1.0 0.0" > /proc/sys/dev/sensors/lm85-i2c-0-2e/pwm1_cfg
but I have no idea what the values are supposed to represent and I am afraid
I will damage the board.
Any assitance will be appreciated.
Regards,
Paul;
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