HC2 - high temperature

Post Reply
raddoc
Posts: 2
Joined: Fri Nov 22, 2019 12:00 am
languages_spoken: english
ODROIDs: HC2
Has thanked: 0
Been thanked: 0
Contact:

HC2 - high temperature

Unread post by raddoc » Sun Nov 24, 2019 7:34 am

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.

User avatar
odroid
Site Admin
Posts: 32677
Joined: Fri Feb 22, 2013 11:14 pm
languages_spoken: English
ODROIDs: ODROID
Has thanked: 209 times
Been thanked: 364 times
Contact:

Re: HC2 - high temperature

Unread post by odroid » Mon Nov 25, 2019 10:00 am

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
Posts: 2
Joined: Fri Nov 22, 2019 12:00 am
languages_spoken: english
ODROIDs: HC2
Has thanked: 0
Been thanked: 0
Contact:

Re: HC2 - high temperature

Unread post by raddoc » Sat Nov 30, 2019 7:26 am

Thanks for the response.
The SSH says:

Code: Select all

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.

Code: Select all

$ 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

Code: Select all

$ 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)

User avatar
odroid
Site Admin
Posts: 32677
Joined: Fri Feb 22, 2013 11:14 pm
languages_spoken: English
ODROIDs: ODROID
Has thanked: 209 times
Been thanked: 364 times
Contact:

Re: HC2 - high temperature

Unread post by odroid » Sun Dec 01, 2019 7:33 pm

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

Code: Select all

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

Post Reply

Return to “Hardware and peripherals”

Who is online

Users browsing this forum: No registered users and 1 guest