“The Raspberry Pi 4 Heatsink should be that thing you should get to prolong the life of your RPi4. This heatsing is however of the dimesions that it's a really really tight fit. It also only attaches to the CPU, which means the chipset which sits a bit lower loses a thermal path and receives a thermal buffer instead.
As an afterthought - I would have gone with a multi-piece heatsink kit like the one for the RPi3.”
“I love Raspberry Pi 4 Heatsink" (only £2.40) I run mine injunction with the Fan Shimi. I got the following temps 52c at the end of the run/CPU stress test. The ambient was a bit more the 20c, I use (with a bit of modification and glue) the "Raspberry Pi 4 Heatsink" (only £2.40) + "Ninja – Pibow Coupé 4" + "Fan SHIMI."
I ran a prime benchmark test shown in this vid: https://www.youtube.com/watch?v=AVfvhEJ9XD0&t=88s
-----
To run the same test you will need to install sysbench via terminal
"sudo apt-get install sysbench"
The results are:
#!/bin/bash
clear
#nice little loop
or f in {1..7}
do
vcgencmd measure_temp
sysbench --test=cpu --cpu-max-prime=25000 --num-threads=4 run >/dev/null 2>&1
done
vcgencmd measure_temp
=========
> vcgencmd measure_temp
> sysbench --test=cpu --cpu-max-prime=25000 --num-threads=4 run >/dev/null 2>&1
> done
temp=39.0'C
temp=51.0'C
temp=51.0'C
temp=53.0'C
temp=51.0'C
temp=52.0'C
temp=52.0'C
pi@Rip4:~ $
pi@Rip4:~ $ vcgencmd measure_temp”
