Odroid C2 running warm to hot

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Eskimos2000
Posts: 3
Joined: Sun Sep 16, 2018 5:58 am

Odroid C2 running warm to hot

Post by Eskimos2000 »

Hi there,

I have just installed dietpi and updated to 6.16, but I have noticed that my C2 is running significantly hotter (52-64C) then on armbian (42-50C). Iis it something that I am missing from the setting (I am on ondemand without any changes).

Cheers
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MichaIng
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Posts: 2293
Joined: Sat Nov 18, 2017 6:21 pm

Re: Odroid C2 running warm to hot

Post by MichaIng »

Can you verify that the ARM is correctly clocking down when on idle, e.g. by using "cpu" command?

We had some kernel setting on RPi in the past that should only push full clocks for 20 seconds on boot, but this prevented clocking down afterwards as well, at least on the current RPi firmware that time.

Perhaps there is some similar issue on Odroid C2.
But also check for e.g. hang processes via "htop".
Eskimos2000
Posts: 3
Joined: Sun Sep 16, 2018 5:58 am

Re: Odroid C2 running warm to hot

Post by Eskimos2000 »

Cpu command is giving me max speed only 1536MHz, I have never seen the lower clock, so might be it.
Edward
Posts: 93
Joined: Sun Apr 09, 2017 6:24 am

Re: Odroid C2 running warm to hot

Post by Edward »

Mine runs at 51c while at 500mhz conservative

While idle using ondemand I'm at 52C, if it does anything 'play music' its at about 54c
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Eskimos2000
Posts: 3
Joined: Sun Sep 16, 2018 5:58 am

Re: Odroid C2 running warm to hot

Post by Eskimos2000 »

So yeah it seems to be quite warm, when I'm using now armbian is at 43-52C max with a few tasks open like music, streaming. So it definitely something here. On diepi my seems to never go do to lower clock (I tried to switch on conservative temp were the same). Question is why is it not going down with clock when not in use?
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Fourdee
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Posts: 2788
Joined: Tue Feb 06, 2007 1:36 pm

Re: Odroid C2 running warm to hot

Post by Fourdee »

Eskimos2000 wrote: Mon Sep 24, 2018 2:06 am So yeah it seems to be quite warm, when I'm using now armbian is at 43-52C max with a few tasks open like music, streaming. So it definitely something here. On diepi my seems to never go do to lower clock (I tried to switch on conservative temp were the same). Question is why is it not going down with clock when not in use?
Hi,

The DietPi cpu script, will cause a spike in CPU usage due to the processing require to run the script.

To check the current CPU frequency, please use:

Code: Select all

 cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
 
The above is in Hz.

When idle, my system is 250/500MHz:

Code: Select all

root@DietPi:~# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
250000
root@DietPi:~# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
500000
CPU temps are 41'c idle.

Ideally check htop to see which program is using the most CPU.

If problems persist, when idle, it could be either one of:
- Power issue with CPU causing excess heat (eg: failing device)
- Bad contact with heatsink+CPU, and/or, heatsink thermal adhesive is failing.
If you find our project or support useful, then we’d really appreciate it if you’d consider contributing to the project however you can.
Donating is the easiest – you can use PayPal or become a DietPi patron.
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