Re: Thermal Monitor & automatic shutdown on over temperature event

["David A." <achoice@gmail.com>]

Hi all, I have similar worries since I run a fanless EPIA. If load
gets to high and I'm not at home, or asleep I want the system to shut
down.
I wrote this small script using sensors to detect and warn high temps.
At  very high temps execute shutdown.

A wall-message and a 30 sek timeout is good if I'm at the desk and can
connect a fan and abort the shutdown. I run the script with nohup.

regards, David.


#!/bin/sh

HIGH=70
SHUTDOWN_TEMP=85
export HIGH
export SHUTDOWN_TEMP

while true
do

  # read temp
  TEMP=`sensors|grep 'CPU Temp'|cut -d+ -f2|cut -d. -f1`

  if [ "$TEMP" -gt "$HIGH" ];
  then
    echo "High temp: $TEMP > $HIGH" | wall
    sleep 2
  else
    if [ "$TEMP" -gt "$SHUTDOWN_TEMP" ];
    then
      echo "To hot, shutting down in 30 sek.!" | wall
      sleep 30
      sudo shutdown now
    else
      echo temp OK: $TEMP
      sleep 5
    fi
  fi

done

On Mar 9, 9:10 am, Bob <s...@homeurl.co.uk> wrote:
> Hi, I'm trying to get my etch MythTV Backend to shutdown automatically
> if either the CPU or the Hard drives overheat.
>
> My motherboard is an ECS K7S5A which has a it87-isa-0290 sensor chip
>
> from sensors-detect
> # Probing for Super-I/O at 0x2e/0x2f
> # Trying family `ITE'...                                      Yes
> # Found `ITE IT8705F Super IO Sensors'                        Success!
> #     (address 0x290, driver `it87')
> #
> # Probing for Super-I/O at 0x4e/0x4f
> # Trying family `ITE'...                                      Yes
> # Found `ITE IT8705F Super IO Sensors'                        Success!
> #    (address 0x290, driver `it87')
>
> Sadly with this motherboard it's not possible to read the on die
> thermistor without breaking out the soldering irons and modifying it.
>
> I can't find a way to set the "Overtemperature Shutdown limit" mentioned
> in the it87 documentshttp://www.gelato.unsw.edu.au/lxr/source/Documentation/hwmon/it87
> and I've tried setting temp3_over (CPU) to 40 and used burnK7 up to 53
> degreesC (actual is probably +10 ~ 15) and the system doesn't shutdown.
>
> I've seen people recommend using sensord to shutdown on overheat but
> can't see howto, also this wouldn't do anything for the hard drives,
> similarly hddtemp seems to just do reporting with no option to shutdown.
>
> collectd has options to monitor both but no tools that I can see to do
> anything if an error condition arises.
>
> My reading has led me to believe that the kernel can do at least the CPU
> part of this for you, if you've got a better supported sensor chip,
> which I don't, but I can't be alone, so what do others do in this situation?
>
> Thanks, I'm not subscribed at the moment so could you please CC me on
> any replys.
>
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