For Raspberry Pi4 continuous selfhosted server operations: with and without case fan. This graph show a 20°C decrease, with a slow rpm fan.
The metal case has thermal stickers to reach for main components on both sides, and the fan is what I have in scrap parts, totally not for that case but pushes a lot of air with low noise compared to screaming mini cpu fans.


#selfhosted #raspberrypi #homelab

      • einkorn@feddit.orgEnglish
        0·
        2 days ago

        0 F is defined as the lowest temperature a guy was able to reach with some random mixture which is arbitrary.

        But 0 C is commonly defined as the point at which water turns from solid to liquid and the other way round. Scientifically it’s ever so slightly off but still it’s defined via Kelvin.

        • bluGill@fedia.io
          0·
          2 days ago

          Celsius is defined at the arbitrary standard pressure, different pressure values change how water acts (this is very noticeable at 100C - boiling). Kelvin steps are defined from Celsius. Even the speed of light which is constant is still defined in terms of an arbitrary time unit.

      • Lucy :3@feddit.orgEnglish
        0·
        2 days ago

        Usually you’d measure it relative to room temperature. Probably harder in this scenario (I don’t have a thermometer laying around, but 20°C is probably a good starting point.