From: david-taylor@blueyonder.co.uk.invalid   
      
   On 09/04/2024 13:52, Adrian wrote:   
   > I'm currently running a Pi2, which has a BME280 (via a hat) and a SSD   
   > attached to it.  The Pi is now starting to struggle to generate graphs   
   > for my home website, so I'm thinking of swapping it for a Pi4.  A   
   > rummage online doesn't seem to fully answer my questions.   
   >   
   > Apart from the Pi4, to upgrade, I know that I will need a bigger power   
   > supply and a HDMI adapter lead, but after, things are a bit vague.  Can   
   > I get away with the Pi4 without any additional cooling, or do I need a   
   > heat sink or fan, and if so, how do they get on with the hat ?  The   
   > space it is in has had a temperature range of -1 to 40 degrees C, the   
   > mean across that time is about 15.5C.   
   >   
   > TIA   
   >   
   > Adrian   
      
   Adrian,   
      
   No problem with the other suggestions.   
      
   When you say "starting to struggle" what have you measured?  Are you running   
   out of memory, CPU power, disk I/O, or network I/O?  I think it would be useful   
   to know what exactly in your system needs changing.   
      
   It's possible that a Pi 3B+ might be a sufficient upgrade (but can you still   
   get them?).   
      
   The Pi-5 creates quite a bit more heat than the Pi 4, and has some software   
   compatibility issues, so unless you really need the 5, stick to the 4.  (I have   
   both here).  If you are not running headless, the Pi 400 has a heatsink and   
   keyboard built in.  I have a couple here and have been very pleased with them.   
   One even runs both Windows and Linux, that's using the Twister OS.  It uses   
   about 2 GB of its 4 GB memory, and averages 10-12% CPU.   
   --   
   Cheers,   
   David   
   Web: https://www.satsignal.eu   
      
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