INTL 3:770/1 3:770/3   
   REPLYADDR cl@isbd.net   
   REPLYTO 3:770/3.0 UUCP   
   MSGID:  bc68df38   
   REPLY:  5455886d   
   PID: SoupGate-Win32 v1.05   
   David Taylor  wrote:   
   > 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?).   
   >   
   Yes, but a 1Gb Pi 3b costs more than a 1Gb Pi 4 so there's not much   
   point in buying one unless the lower power consumption is really   
   important.   
      
      
   > 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.   
      
   When idle there's little difference, e.g. :-   
      
   "We also ran a test to measure the heat generated by the devices   
   during use. The comparison shows that both Raspberry Pi 5 and   
   Raspberry Pi 4 generate similar amounts of heat. In terms of power   
   consumption, the PI4 and PI5 have similar power consumption when not   
   running programs. However, during video playback, there is only a   
   small difference of 0.2 watts in their power consumption."   
      
   The Pi 5 *can* use more power but when doing the 'same thing' the   
   power consumption is pretty close to that of the Pi 4.   
      
      
   --   
   Chris Green   
   ·   
      
   --- SoupGate-Win32 v1.05   
    * Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3)   
   SEEN-BY: 10/0 1 15/0 90/1 103/705 105/81 106/201 128/260 129/305 135/220   
   SEEN-BY: 135/225 153/757 7715 218/0 1 601 700 840 870 930 220/70 221/1   
   SEEN-BY: 221/6 360 226/17 30 100 227/114 229/110 111 112 113 200 206   
   SEEN-BY: 229/307 317 400 426 428 470 550 616 664 700 240/1120 266/512   
   SEEN-BY: 267/800 282/1038 291/111 292/854 301/1 113 812 310/31 320/219   
   SEEN-BY: 322/757 335/364 341/66 342/200 396/45 460/58 633/280 712/848   
   SEEN-BY: 770/1 3 100 330 340 772/210 220 230 5020/400 1042 5058/104   
   SEEN-BY: 5075/35   
   PATH: 770/3 1 218/840 221/6 301/1 218/700 229/426