Oh, you have USB-C watt-meter? Could you measure a couple of loads for me, please? I have a script, which takes the consumption from PMIC and then there is a linear correction to get the real consumption as measured by the watt-meter.And the test you suggest that gets you to 13W at 2.4GHz gets me to 23W (according to a USB-C inline meter) at 3GHz with throttling, so maybe I will go for a step-up converter and PWM this 12V fan at some stage after all.
https://github.com/jfikar/RPi5-power
So just run different loads. Without HATs and attached USB devices, if possible. Each time measure consumption with watt-meter and with this script (the same as on GitHub, but without the linear correction). Script makes a 50 second average:
Code:
#!/bin/shSECONDS=50BOTH=$(mktemp)CURRENT=$(mktemp)TENSION=$(mktemp)CONSUMPTION=$(mktemp)for i in $(seq 1 ${SECONDS})dosleep 1vcgencmd pmic_read_adc > ${BOTH}cat ${BOTH} | grep current | awk '{print substr($2, 1, length($2)-1)}' | sed 's/.*=//g' > ${CURRENT}cat ${BOTH} | grep volt | awk '{print substr($2, 1, length($2)-1)}' | sed 's/.*=//g' | head -12 > ${TENSION}paste ${CURRENT} ${TENSION}| awk '{sum+=$1*$2}END{print sum}' >> ${CONSUMPTION}rm ${CURRENT} ${TENSION} ${BOTH}donecat ${CONSUMPTION} | awk '{sum+=$1}END{if (NR>0) print "Average pmic output = " sum / NR " W"}'rm ${CONSUMPTION}Statistics: Posted by fik — Wed Mar 27, 2024 1:39 pm