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   XPost: sci.electronics.design   
      
   On 22/08/2024 22:08, druck wrote:   
   > On 22/08/2024 07:37, Jan Panteltje wrote:   
      
   >> Pis take ever more power..   
   >   
   > Don't confuse the availability of a larger power supply with the Pi 5   
   > taking more power - it's not much different to the Pi 4. However, as you   
   > *could* attach 4 USB devices and a PCIe device, the PSU is rated to cope   
   > with the maximum current all of those devices could use simultanously.   
   > If you won't be doing that, you can use the Pi 4 PSU.   
   >   
      
   No, that is true, and my Pi 4 can just handle two USB SSD drives. JUST.   
   Not three though.   
      
   BUT even doing sod all it still draws enough to get its temperature up   
   into the 50's°C. As do the drives  into the 40s°C   
      
   Which the Pi zero also does   
      
   I think that as a desktop machine Pi 4s and 5s power consumption is   
   approaching that of a good intel chipset *for equivalent performance*.   
      
   (these temps may be of interest)   
      
   PI 4B (headless) equipped with 2 SSD   
   =======================   
   CPU temp=52.1'C   
   Disk 1= 40°C   
   Disk 2 =44°C   
      
   PI zero 1  (headless)   
   ===========   
   CPU temp=43.9'C   
      
   PI zero 2 (headless)   
   ===========   
   CPU temp=39.5'C   
      
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