CPU temperature

axis

I have been installed small radiator from RaspberryPi on H3.Temperature now is more than 50 degrees Celsius (About 51-52)
Is it normal temp?

sypperpit

1.     cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq

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1. Debian GNU/Linux 9 \n \l

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1. cat: /sys/devices/virtual/thermal/thermal_zone0/temp: No such file or directory

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phelum

I have been installed small radiator from RaspberryPi on H3.Temperature now is more than 50 degrees Celsius (About 51-52)
Is it normal temp?

Probably.  My H3 runs at about this temperature without a heatsink.  This does seem a bit warm to me.  I've ordered some 14x14x10 heatsinks to see if this helps.

Cheers,
Steven

zhao_steven

Linux distribution version have need cpufreq.

wolftronics

so not an acceptable answer for linux ... but still ... if I do almost minimal package
thus:
sudo apt-get -f remove x11-common midori lxde python3 python3-minimal libpulse0 libxtst6
sudo find / -type f -size +10000k -exec ls -lh {} \; | awk '{ print $NF ": " $5 }'
sudo rm -rf opt
sudo dpkg --get-selections | grep "\-dev"
sudo apt-get remove `sudo dpkg --get-selections | grep "\-dev" | sed s/install//`
sudo apt-get remove `sudo dpkg --get-selections | grep -v "deinstall" | grep python | sed s/install//`
sudo apt-get remove lxde-common lxde-icon-theme omxplayer raspi-config
sudo apt-get remove `sudo dpkg --get-selections | grep -v "deinstall" | grep x11 | sed s/install//`
sudo apt-get remove `sudo dpkg --get-selections | grep -v "deinstall" | grep sound | sed s/install//`
sudo apt-get remove `sudo dpkg --get-selections | grep -v "deinstall" | grep ssh | sed s/install//`
sudo apt-get install dropbear
sudo apt-get remove gcc-4.4-base:armhf gcc-4.5-base:armhf gcc-4.6-base:armhf gcc-4.7-base:armhf
sudo apt-get remove ca-certificates libraspberrypi-doc xkb-data fonts-freefont-ttf locales manpages
sudo apt-get remove xpdf xarchiver wpagui wpasupplicant wget v4l-utils squeak-vm omxplayer
sudo apt-get remove alsa-base alsa-utils whiptail vim vim-common  vim-runtime vim-tiny wireless-tools  lua5.1 luajit libxml2:armhf
sudo apt-get remove java-common plymouth penguinspuzzle mc  java-common
sudo apt-get autoremove
sudo apt-get clean
sudo swapoff -a
cd /var
sudo dd if=/dev/zero of=swap bs=1M count=100
cd /var/log/
sudo rm `find . -type f`

I tried to test ... to applications or the kernel ...
is also hotter than during the use android.

jam

how check cpu temp on orange pi plus, debian?

Vlad

jam replied at 2015-6-8 05:18
how check cpu temp on orange pi plus, debian?

some temp:

1. cat /sys/devices/virtual/thermal/thermal_zone0/temp

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current mem freq:

1. cat /sys/devices/platform/sunxi-ddrfreq/devfreq/sunxi-ddrfreq/cur_freq

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current cpu freq:

1. cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq

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could an officials confirm the above?

rajib

I am running Ubuntu Mate 15.04 by Loboris. The OPi-M2 is simple placed on the table in the open and it is not inside any case etc.
I have stuck a coin on top of the H3 CPU using a little HY710 thermal paste. The coin is acting as heat-sink (probably very ineffective too). This is temporary till the ceramic heat-sink arrives from AliExpress.

On the desktop, CPU Frequency Scaling Monitor 1.8.1 is running and the mode is set-to Conservative. During idle-states, the CPU Frequency drops to 480 MHz. In case of generic activity, it scales up-to 1.2 GHz. It touches 1.5 GHz sporadically.

During heavy-use, the cat report temperature on 71 (C or F?). As the system returned to idle-state, the temperature very gradually reduced to 62. I used a kitchen-thermometer to measure the temperature of the coin. During heavy-use, it touched 55 C.

Even during idle-state, the coin is too hot to be held and will cause a burn-injury.

I think an active heat-sink is strongly recommended to ensure the long-life of the OPi.

Thread

Hi,

I've been benchmarking Orange Pi mini 2 with sysbench.
When I try to run sysbench on 4 cores 100% CPU load, one of them always get too hot and it is switched off by system. As a result, OPi mini 2 on 3 legs gets worst results than Raspberry Pi 2...

Details:
1 core:
RPi2 = 297s
OrangePi mini2 = 182s
Odroid C1 = 217s

4 cores:
RPi2 = 75s
OrangePi mini2 = ???  => 1 core out because of overheating
C1 = 55s

On 3 cores, OrangePi mini 2 gets 78s

What about including a heatsink on every unit sold for a little extra cost?

Regards,
Thread

wufish

used CentOS 7.8
do not find /sys/devices/virtual/thermal/thermal_zone0/temp
how to cat cpu temperature?