I got my RPi 3 B+ now running with LibreELEC on it and without any heatsinks. After 10 minutes in idle I get: LibreELEC:~ # vcgencmd measure_volts core volt=1.3500V LibreELEC:~ # vcgencmd measure_temp temp=62.3'C Do you think this can get a problem? What would be the best heatsink option? I have 2 s...