As a Pi Hole, the Pi 5 doesn’t require active cooling.
Now, I am running a separate Pi 5 with a HAILO 8 for Frigate monitoring of a bunch of video streams, and it does need a little air movement, so I built a box with a 200mm fan pulling through a filter and I just threw all my Pis in there along with the Frigate rig so they stay nice and cool… I’m thinking that I should probably switch Frigate over to a Pi 4 for the h.264 hardware decoder, but the 5 is working fine for my needs and endless tweaking gets boring…
You are probably right for something like a Pihole, which can easily run on a RPi 3 as well (I think I’m running it on a 3… maybe even a 2.) My fear is something like Jellyfin (which it is not suited for anyway, I know), combined with the fact that my stack of Pis is in my meter cabinet, so a fairly confined space with very little air movement, also passive. Running Jellyfin without transcoding has my Pi 5 running at just under 50 °C.
As a Pi Hole, the Pi 5 doesn’t require active cooling.
Now, I am running a separate Pi 5 with a HAILO 8 for Frigate monitoring of a bunch of video streams, and it does need a little air movement, so I built a box with a 200mm fan pulling through a filter and I just threw all my Pis in there along with the Frigate rig so they stay nice and cool… I’m thinking that I should probably switch Frigate over to a Pi 4 for the h.264 hardware decoder, but the 5 is working fine for my needs and endless tweaking gets boring…
You are probably right for something like a Pihole, which can easily run on a RPi 3 as well (I think I’m running it on a 3… maybe even a 2.) My fear is something like Jellyfin (which it is not suited for anyway, I know), combined with the fact that my stack of Pis is in my meter cabinet, so a fairly confined space with very little air movement, also passive. Running Jellyfin without transcoding has my Pi 5 running at just under 50 °C.
It’s impressive what a gentle breeze will do - if you can get a fan on your cabinet it will help a lot.
I filter my air and positive pressure the cabinet so the dust doesn’t build up (as fast).