HC2 - high temperature

[raddoc]

I'm backing up large amounts of data on a gigabit connection via AFP.
The CPU temperatures lingers around 80-85 deg. celcius.

I found this thread (viewtopic.php?f=97&t=30929&p=223362&hil ... re#p223362) discussing some of the problems, but i still have questions:

- Does the HC2 have an upper "emergency shutdown" temperature? And could a sudden shutdown corrupt the HDD?
- At what temperature (if any) does the HC2 start to do some thermal throttling?

Any other advice is welcome.

[odroid]

Which OS image do you run on your HC2?

Our stock Kernel 4.14 has an emergency shutdown at 95 °C and thermal throttling is starting at 85°C as far as I remember.
Keep monitoring the temperature and CPU frequencies together.
Also try changing the A15 big CPU max clock to 1.8Ghz from 2.0Ghz.

[raddoc]

Thanks for the response.
The SSH says:

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Welcome to Debian Stretch with Armbian Linux 4.14.150-odroidxu4

Idle the temperature is around 70 deg. (in plastic case with mounted HHD).
I got gnome tracker spiking up on the CPU (50% +) - i need to make a cron job instead of having it running all the time... Not sure how it might affect the temp. while transferring files though.

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$ top
PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND
11019 root      39  19  165824  12044   9124 R  10.3  0.6   0:00.31 tracker-extract
10460 Test      20   0    7176   3028   2400 R   1.0  0.1   0:00.71 top
 1708 root      39  19  121244  25804   9488 S   0.7  1.3   1:27.92 tracker-miner-f
 1306 root      20   0    5208   2788   2424 S   0.3  0.1   0:02.67 dbus-daemon

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$ sudo cpupower frequency-info
analyzing CPU 0:
  driver: cpufreq-dt
  CPUs which run at the same hardware frequency: 0 1 2 3
  CPUs which need to have their frequency coordinated by software: 0 1 2 3
  maximum transition latency: 155 us
  hardware limits: 200 MHz - 1.50 GHz
  available frequency steps:  200 MHz, 300 MHz, 400 MHz, 500 MHz, 600 MHz, 700 MHz, 800 MHz, 900 MHz, 1000 MHz, 1.10 GHz, 1.20 GHz, 1.30 GHz, 1.40 GHz, 1.50 GHz
  available cpufreq governors: userspace powersave conservative ondemand performance schedutil
  current policy: frequency should be within 600 MHz and 1.50 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency: 1.50 GHz (asserted by call to hardware)

[odroid]

Check outputs from the follow commands. Note that Core #0~3 are Little and #4~#7 are Big.

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cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_max_freq