>>1
乙
Raspberry Pi 4 heatsink testing - raspberry_pi 　
https://www.reddit.com/r/raspberry_pi/comments/cbqt19/raspberry_pi_4_heatsink_testing/
やっぱりヒートシンクとファンを組み合わせるのが最強なんだな(´・ω・｀)
Heatsink with 40mm Fan 34.75°C 46°C Never, ran for 2.5 hours averaging 43.03°C