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2 OPiPC+'s, same /boot, different results


laurentppol

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GREAT, thats what I may use in script :).

As one of my OPiPC+ repeatedly hangs, despite heatsinks, but it is in plastic enclosure, so I may suspect overheating.

Now I will add not only date/time but temperature too to a "logfile".

 

Changed uSD card from Toshiba to Samsung (A1) same. System is not the "old upgraded one" with whitch I had problems, but a clone of working OPi.

Last thing is power, but there is SMPS 5V 3A + UltraCap 1F/5.5V, but who knows, cable is short (10-15cm) but poor quality (more than 1ohm @ 1m).

 

But a bit strange, other one, w/o heatisinks, shows temp 74950 (I guess it is miliK) but runs (for now) for 8 days w/o problem.

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5 hours ago, laurentppol said:

GREAT, thats what I may use in script :).

As one of my OPiPC+ repeatedly hangs, despite heatsinks, but it is in plastic enclosure, so I may suspect overheating.

Now I will add not only date/time but temperature too to a "logfile".

 

Changed uSD card from Toshiba to Samsung (A1) same. System is not the "old upgraded one" with whitch I had problems, but a clone of working OPi.

Last thing is power, but there is SMPS 5V 3A + UltraCap 1F/5.5V, but who knows, cable is short (10-15cm) but poor quality (more than 1ohm @ 1m).

 

But a bit strange, other one, w/o heatisinks, shows temp 74950 (I guess it is miliK) but runs (for now) for 8 days w/o problem.

That's 75C, check htop for speed, because it should be throttling down to 1.30Ghz until ~72C

And high temp is not recommended longterm, try cpu max 1.1GHz

Edited by xwiggen
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I will install a fan in the case this week (already got it from China). Then log temp/date and see if it hangs. I observed, that while hung, if I do a power cycle, temperature after boot is even 85*C. Then it (slowly) falls to 65-70*C.

 

But I get temp about 70-75* in OPi3 in metal case, 4 heatsinks (1 "fake" -> a small metal tab on flash, but there is mPCIe connector) and fan. And it works rock-stable.

I am curious, what will it be with OPi4 i plan to buy.

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51 minutes ago, laurentppol said:

I will install a fan in the case this week (already got it from China). Then log temp/date and see if it hangs. I observed, that while hung, if I do a power cycle, temperature after boot is even 85*C. Then it (slowly) falls to 65-70*C.

likely the the pc+ had a temp of 100+ before stopping. what are you running?

the opi3 i do not know, different chip though seems hot also.

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Looks it is NOT overheating issue:

 

System load:   1.82 0.42 0.14   Up time:       0 min
Memory usage:  21 % of 966MB    IP:            192.168.1.100
192.168.2.100 192.168.1.101
192.168.2.101
CPU temp:      80°C           
Usage of /:    28% of 30G    

[ General system configuration (beta): armbian-config ]


laurent@orangepipcplus:~$ su -
Hasło: 

root@orangepipcplus:~# tail ~/self-ping.txt 
2020-08-11T01:52+02:00
53637
2020-08-11T01:53+02:00
53637
2020-08-11T01:54+02:00
53273
2020-08-11T01:55+02:00
53515
2020-08-11T01:56+02:00
53758
root@orangepipcplus:~# head ~/self-ping.txt 
2020-08-09T19:08+02:00
66715
2020-08-09T19:09+02:00
69137
2020-08-09T19:10+02:00
65020
2020-08-09T19:11+02:00
64778
2020-08-09T19:12+02:00
64293
root@orangepipcplus:~# 

 

Login is just after power off/on cycle, CPU is HOT. But this is while OpenHAB2 starting.

 

But at then last moment it worked it had only ~53.5*C.

 

What (how) to trace now? Replace SMPS (12V->5V 3A) powering device (& cable)? Remove case (temporairly)? Any ideas else?

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2 hours ago, laurentppol said:

Looks it is NOT overheating issue:

 


System load:   1.82 0.42 0.14   Up time:       0 min
Memory usage:  21 % of 966MB    IP:            192.168.1.100
192.168.2.100 192.168.1.101
192.168.2.101
CPU temp:      80°C           
Usage of /:    28% of 30G    

[ General system configuration (beta): armbian-config ]


laurent@orangepipcplus:~$ su -
Hasło: 

root@orangepipcplus:~# tail ~/self-ping.txt 
2020-08-11T01:52+02:00
53637
2020-08-11T01:53+02:00
53637
2020-08-11T01:54+02:00
53273
2020-08-11T01:55+02:00
53515
2020-08-11T01:56+02:00
53758
root@orangepipcplus:~# head ~/self-ping.txt 
2020-08-09T19:08+02:00
66715
2020-08-09T19:09+02:00
69137
2020-08-09T19:10+02:00
65020
2020-08-09T19:11+02:00
64778
2020-08-09T19:12+02:00
64293
root@orangepipcplus:~# 

 

Login is just after power off/on cycle, CPU is HOT. But this is while OpenHAB2 starting.

 

But at then last moment it worked it had only ~53.5*C.

 

What (how) to trace now? Replace SMPS (12V->5V 3A) powering device (& cable)? Remove case (temporairly)? Any ideas else?

Load at bootup is <=1.82 (<50% all core utilization), 25C increase within minute  seems very unlikely, what is likely (commit=600 in /etc/fstab) your monitoring script did not sync till the end, i.e. last temps are probably not logged to block device.

 

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Ok, yesterday installed fan (sold on Ali as for "Raspberry Pi 3" but it fits even inside casing), temperature (no real load) even below 40*C. (@ 26*C ambient).

Will look that is to be going on.

"1 liner" to log temperature@date-time launched, so there will be possibility to make a graph of this.

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