A while ago I bought an Asus Eee Box B202. Sometime later I swapped the 160GB harddrive for an OCZ Vertex 32GB SSD. And now finally I made it almost completely silent by using something better than Q-fan to control the fan:
lm-sensorsIn Debian/Ubuntu they split lm-sensors into several packages:
Code:
# apt-get install lm-sensors fancontrol
When I let the system idle and set the fan at full speed, then the temperature sensor in the CPU registers 12ᵒC below room temperature. So in my configuration file I add 12 to the value of that sensor. I also find the reported fan speeds hard to believe, so I divide them by two. Lastly I'm not interested in voltages, speed of fans that are not there and temperatures that go down when I stress the system. The resulting file (/etc/sensors.d/B202.conf) contains:
Code:
chip "coretemp-*"
compute temp2 @+12 , @-12
chip "w83627dhg-*"
ignore in0
ignore in1
ignore in2
ignore in3
ignore in4
ignore in5
ignore in6
ignore in7
ignore in8
ignore fan1
label fan2 "Fan"
ignore fan3
ignore fan4
ignore fan5
set fan2_min 1000
compute fan2 @/2 , 2*@
ignore temp3
ignore cpu0_vid
More interesting are the settings for the fan controller (/etc/fancontrol) I use:
Code:
INTERVAL=5
DEVPATH=hwmon0=devices/platform/coretemp.0 hwmon1=devices/platform/w83627ehf.656
DEVNAME=hwmon0=coretemp hwmon1=w83627dhg
FCTEMPS=hwmon1/device/pwm2=hwmon0/device/temp2_input
FCFANS= hwmon1/device/pwm2=hwmon1/device/fan2_input
MINTEMP=hwmon1/device/pwm2=20
MAXTEMP=hwmon1/device/pwm2=50
MINSTART=hwmon1/device/pwm2=80
MINSTOP=hwmon1/device/pwm2=80
MINPWM=hwmon1/device/pwm2=80
Now I can only hear the fan (from my normal siting position) very late at night. Note however that I use this system only for web browsing, e-mailing and simple text editing.
Code:
martijn@surfbox:~$ sensors
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +35.0°C (high = +82.0°C, crit = +102.0°C)
w83627dhg-isa-0290
Adapter: ISA adapter
Fan: 1250 RPM (min = 1004 RPM, div = 4)
temp1: +46.0°C (high = +70.0°C, hyst = +34.0°C) sensor = thermistor
temp2: +56.5°C (high = +80.0°C, hyst = +75.0°C) sensor = diode