RPI3 Higher temperatures than Raspbian

[trustnt]

Using Rasbian on idle the temperature is 55C and on Alarm it's 60C on idle, is this normal? I followed the official guide from the website. I'm using the armv7 rather than aarch64.

[unformatted]

I wouldn't worry about a couple of degrees difference, I have 3 RPi3's running without overclocking on about 45 degrees Celcius at 22 degrees Celcius room temperature. But I do have a small heatsink glued to the CPU chip. And the boards are in a plastic housing, with a ventilation hole.

I measure temperature using:
$this->bbcode_second_pass_code('', '
/opt/vc/bin/vcgencmd measure_temp
')
From my own wiki:
"
On RPi3 when SoC temperature exceeds 80C a half-filled thermometer is shown, ARM core(s) throttle back attempting to reduce core temperature. Near 85C a full thermometer is shown and ARM core(s) throttles back to 600MHz (arm_freq_min ) and GPU throttles back to 250MHz (core_freq_min).
* Change overheat protection:
$this->bbcode_second_pass_code('', '
# nano /boot/config.txt
temp_limit=70
')
"
The boot configuration lets you define a lower throttling treshold value if you wish. I have LXDE desktop an Kodi running on those Pi's and never saw the thermometers.

You can use following script to max out all CPU cores for testing:
$this->bbcode_second_pass_code('', '
#!/bin/bash

for ((i=0; i<$(nproc --all); i++)); do nice yes >/dev/null & done

echo ¨Stop stress test [y]?¨
while [[ x$answer != xy ]]
do
read answer
done

killall yes
echo ¨Stress test terminated.¨
')

[trustnt]

Wouldn't it be bad for the sd card while the cpu is idling on 60C?

[unformatted]

No.

[trustnt]

Okay thanks