[lm-sensors] LPC47M192-NC Fans
fidlersean at gmail.com
Mon Dec 14 01:55:58 CET 2009
On Sat, 5 Dec 2009, Jean Delvare wrote:
> Hi Sean,
> On Wed, 2 Dec 2009 14:55:37 -0500 (EST), Sean Fidler wrote:
>> Sensors output:
>> Adapter: SMBus I801 adapter at 1880
>> +2.5V: +0.00 V (min = +2.90 V, max = +2.90 V) ALARM
>> VCore: +0.00 V (min = +2.99 V, max = +2.99 V) ALARM
>> +3.3V: +0.00 V (min = +4.38 V, max = +4.35 V) ALARM
>> +5V: +0.00 V (min = +6.64 V, max = +6.64 V) ALARM
>> +12V: +3.12 V (min = +15.81 V, max = +15.88 V) ALARM
>> VCC: +3.35 V (min = +4.38 V, max = +3.83 V) ALARM
>> +1.5V: +0.05 V (min = +1.49 V, max = +1.99 V) ALARM
>> +1.8V: +0.00 V (min = +2.39 V, max = +2.39 V) ALARM
>> Chip Temp: +34.0°C (low = -17.0°C, high = -1.0°C) ALARM
>> CPU Temp: +28.0°C (low = -1.0°C, high = -33.0°C) ALARM
>> Sys Temp: FAULT (low = -65.0°C, high = -1.0°C) ALARM
>> cpu0_vid: +1.475 V
> Not many inputs wired, and the min voltage and high temperature limits
> are pretty wrong, but other than that it's not too bad, except for
> +12V. Do the temperature values appear to match anything you've seen in
> the BIOS?
The CPU temperature in the BIOS is 35 and the CPU temperature shown by
"sensors" is 31. The "sensors" reading for Chip Temp is closer to what
the BIOS shows, 34 degrees.
>> Adapter: ISA adapter
>> fan1: 2925 RPM (min = 2560 RPM, div = 2) ALARM
>> fan2: 0 RPM (min = 3072 RPM, div = 4) ALARM
> Looks reasonable. Only one fan on this system? If there are more, you
> can try increasing fan2_div to 8 if the other fan is a slow one. I
> guess that the first ALARM wears off when running "sensors" again? 2925
> is above the min limit so there should be no ALARM.
There's one fan.
ALARM show up most of the time.
> From the above output, the following configuration section would seem
> appropriate for your system:
> chip "smsc47m192-i2c-*-2d"
> ignore in0
> ignore in1
> ignore in2
> ignore in3
> label in5 "+3.3V"
> ignore in6
> ignore in7
> set in4_min 0
> set in5_min 3.3 * 0.95
> set in5_max 3.3 * 1.05
> ignore temp3
> set temp1_min 5
> set temp1_max 50
> set temp2_min 5
> set temp2_max 50
> Needs to be confirmed:
> * What is wired on in4.
I don't know how to find out this information.
> * Temperature input labels.
> * Whether cpu0_vid is real. What CPU is there on this machine?
CPU: Intel Celeron 2.4GHz, 400MHz (Willamette, Northwood according to HP
> * Which fan is connected to fan1.
This is the CPU fan.
> * Is there anything connected to fan2.
> If you can answer the questions above then we can put a good
> configuration file for your machine on the wiki.
>> I wouldn't mind test kernel patches. I'll have to figure out how to
>> implement them, but I think I'll be able to manage *fingers crossed*. Whatever I can do to
> I've put a modified smsc47m1 driver here:
> I would like you to download it and test it. With that driver, you
> should no longer have to do the isaset magic at boot time. It include
> other changes which should hopefully be transparent to you if I didn't
> mess up.
> This is a standalone driver, you'll need a proper build environment
> (install make, gcc and the kernel headers) then type "make" then load
> the driver (with insmod.)
Fans are now controlled at startup. Any test I should run?
> Jean Delvare
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