Way to keep your cool running a Raspberry Pi 4 (2019)

Nice test, it could be cool to have people repeating it to see how much the "silicon lotery" influences the temps.

Also there a few model of cases on ebay/aliexpress that would be interesting to test such as https://m.aliexpress.com/item/4000509636456.html (with a heatsink added)

My PI is too cool. It freezes.

I have playing with a PI Zero W over the last weeks. At first everything worked as expected.

But now it developed some strange "hangings" I cannot explain. It kinda randomly freezes in time for a few minutes every now and then.

Sometimes it takes several minutes to ssh into it. Sometimes, the terminal just freezes for several minutes.

Neither top nor iostat seem to show any elevated activity during these periods. Since they hang throughout the freeze, its a bit hard to say though.

The strangest thing: Pings to the PI always come back fast. So its probably not that the hardware really freezes completely.

I've had a little fan on an old rpi3 I had and it was annoyingly loud.

I've been running a raspberry 3 with a cheap sandisk sd card for years now without any SD Card issues. It runs a DNS based ad-blocker and a vpn.

I am logging everything to ram instead of writing it to the card and that's about it. I never encountered any issue with SD Card reliability, despite me sometimes just pulling the plug instead of properly shutting it down.

Here is a simple guide: https://raspberrypi.stackexchange.com/a/62536

I do have a couple of other raspberries for other uses (e.g. a small rc car) which are also running on their first SD card. Might be just luck, but I do think that it's not necessary to go to extreme lengths to have them run reliably.

Have you tried replacing the SD card with a fresh one with a fresh install and checking if this still occurs? I've had a somewhat similar problem and it turned out to be a dying SD card.