nschloe/stressberry

CooliPi 4B in passive mode

CooliPi opened this issue · 3 comments

P1470094
P1470054
CooliPi-passive.zip
out-passive

Hi,

the length of the test (5 minutes ?) is way too short. It takes half an hour for the temperature to settle. See https://www.coolipi.com/Performance.html
I also miss ambient temperature, because you can't make a fair comparison if you don't know it.

Mine was 25.5-26 degC. Raspberry Pi 4 model B. Overclocked to 1850MHz, over_voltage=2
GPU wasn't intentionally overclocked. Monitor - 1920x1200 via HDMI.

The best stress test isn't stress or stress-ng, but linpack. At least for Raspberry Pi 4.

I've also noticed different cooling performance with a monitor connected and then without a monitor. 4K monitor would make the device heat up even more.

So I suggest you also require these metadata.

CooliPi 4B is primarily a passive heatsink with a case, this setup is mainly for industrial users and for overclockers.

Best Regards.

Lada (lada@coolipi.com)

I've also found out differences in temperature with different RPI firmwares. The latest one slashes some more degrees of temperature. So I suggest you also collect the firmware version. It can slash 2 degrees Celsius at idle. This submitted performance log was collected using the a previous firmware (than the latest).

The best stress test isn't stress or stress-ng, but linpack. At least for Raspberry Pi 4.

How?