[mythtv-users] Fan speed control using lm-sensors doesn't work.Help, please.
allen.p.edwards at gmail.com
Wed Nov 18 06:18:16 UTC 2009
> The specs on an Athlon 64 X2 6000+ that I have say the max operating temp
> 55-63 degrees. This chip has a thermal design power of 125 watts.
> Remember that the reported temperature is dependent on the calibration of
> thermistor (usually poor), and several other factors, so I would not run
> closer to the allowed max temp than you have to.
> If I were running at 60 degrees I'd try to get that down. Most electronics
> happier at cooler temperatures (Google's conclusions regarding HDDs
> Brian Wood
> beww at beww.org
sensors looks like this:
Adapter: PCI adapter
Core0 Temp: +51.0C
Core0 Temp: +42.0C
Core1 Temp: +47.0C
Core1 Temp: +35.0C
Adapter: ISA adapter
VCore: +1.31 V (min = +0.00 V, max = +4.08 V)
VDDR: +3.23 V (min = +0.00 V, max = +4.08 V)
+3.3V: +0.00 V (min = +0.00 V, max = +4.08 V)
+5V: +4.87 V (min = +0.00 V, max = +6.85 V)
+12V: +12.10 V (min = +0.00 V, max = +16.32 V)
in5: +0.00 V (min = +0.00 V, max = +4.08 V)
in6: +0.00 V (min = +0.00 V, max = +4.08 V)
5VSB: +6.85 V (min = +0.00 V, max = +6.85 V)
VBat: +3.26 V
fan1: 1380 RPM (min = 0 RPM)
fan2: 0 RPM (min = 0 RPM)
fan3: 1849 RPM (min = 0 RPM)
temp1: +60.0C (low = -1.0C, high = +127.0C) sensor = thermal diode
temp2: +42.0C (low = -1.0C, high = +127.0C) sensor = transistor
temp3: +25.0C (low = -1.0C, high = +127.0C) sensor = transistor
cpu0_vid: +1.550 V
I am not really sure which number to watch. I have been thinking it is
temp1. The only temp I know for sure is the heat sink temperature which is
40 degrees. I know that because right now I have a temp sensor on it going
to an external meter.
The load on the computer is about 60% according to top (actually it reads
120% but with two cores I think the max is 200%). So, I assume I am running
60% of 65 watts or 40 watts and at .25 degrees per watt I should have a 10
degree rise. The case is probably about 30 degrees so that matches. The
room is probably 22 degrees.
Room to case 8 degrees
case to heat sink 10 degrees
heat sink to temp1 20 degrees (can't control this one).
What would you change? Am I reading lm-sensors correctly?
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