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.
HC2 - high temperature
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Re: HC2 - high temperature
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.
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.
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Re: HC2 - high temperature
Thanks for the response.
The SSH says:
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.
The SSH says:
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Welcome to Debian Stretch with Armbian Linux 4.14.150-odroidxu4
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)
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Re: HC2 - high temperature
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
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