MSGID: <10cjfmq$2cnh5$7@dont-email.me> 46dc8317   
   REPLY: <10cjcd9$2bi9l$1@dont-email.me> 13cfdc5f   
   PID: PyGate 1.0   
   TID: PyGate/Linux 1.0   
   CHRS: UTF-8 4   
   TZUTC: 0100   
   REPLYADDR tnp@invalid.invalid   
   REPLYTO 3:633/10 UUCP   
   On 13/10/2025 18:20, Pancho wrote:   
   > On 10/12/25 16:03, Daniel James wrote:   
   >> On 09/10/2025 16:42, Mike Scott wrote:   
   >>> I've just installed rasp OS on a new pi5 for the first time. It moans    
   >>> the psu is insufficient, and can't deliver 5A. But the psu itself - a    
   >>> kosher raspberry pi one - claims it will deliver 5A/25W.   
   >>   
   >> That doesn't sound right.   
   >>   
   >> Raspberry Pi sell three different USB-C PSUs:   
   >>   
   >> - A 15W PSU for use with the Pi 4/400 only.   
   >> - A 27W PSU for use with the Pi5/500 (and 4/400)   
   >> - A 45W PSU which is like the 27W but more powerful and can power some    
   >> laptops, etc.   
   >>   
   >> The 27W and 45W PSUs support the USB Power Delivery spec and will    
   >> provide a range of powers/voltages after negotiation with the device.    
   >> The 15W PSU provides only 5V/3A, and is stated to be inadequate for    
   >> the Pi5 and later.   
   >>   
   >> There is no official "kosher" 25W PSU from Raspberry Pi.   
   >>   
   >    
   > I think the 27W PSU was the original official version.   
   >    
   > Also, it is worth making clear the rPi5 USB PD is unusual, it only uses    
   > 5V and negotiates current up to 5A (which somehow = 27W).   
   >    
   >    
   > Whereas my normal USB PD plugs produce their specified high wattage by    
   > boosting voltage, so they don't work with the rpi5 at all. Which    
   > irritated me a lot when I found out.   
      
   I think its 5.5V at 5A.   
      
   --    
   ?Some people like to travel by train because it combines the slowness of    
   a car with the cramped public exposure of ?an airplane.?   
      
   Dennis Miller   
      
      
      
   --- PyGate Linux v1.0   
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