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   MSGID: <14s*RDN1z@news.chiark.greenend.org.uk> 4ce7145d   
   REPLY: <34s*FvN1z@news.chiark.greenend.org.uk> 8b59c272   
   PID: SoupGate-Win32 v1.05   
   Theo  wrote:   
   > The Natural Philosopher  wrote:   
   > > On 11/12/2024 16:46, Daniel wrote:   
   > > > Andy Burns  writes:   
   > > >   
   > > >> Daniel wrote:   
   > > >>   
   > > >>> Jeff did a teardown on his second channel and soldered a m.2 socket   
   > > >>> hoping it was properly designed. He found the power lines weren't   
   traced   
   > > >>> in so no power.   
   > > >>   
   > > >> There were some nearby component missing too, maybe the Rev1 board has   
   > > >> bugs, and they need a Rev2 (or whatever) but his soldering job looked   
   > > >> relatively clumsy (bridged pins etc).   
   > > >   
   > > > Yeah, it was pretty bad, at least he was honest about it.   
   > > >   
   > > > I am sure things were missing to keep the circuitry disabled and I'm no   
   > > > engineer.   
   > >   
   > > Why would you put support chips on if you were not going to install an   
   > > M.2 socket anyway?   
   > >   
   > > I think he called it right in that this is a bare bones model, and more   
   > > upmarket versions will emerge in due course.   
   >   
   > Looking at:   
   > https://www.jeffgeerling.com/sites/default/files/images/pi-500   
   m2-socket-install.jpg   
   > https://www.jeffgeerling.com/sites/default/files/images/pi-500   
   pcb-bottom.jpeg   
   >   
   > I think there's a MOSFET and some decoupling capacitors missing (to the left   
   > of the middle larger hole), so the power isn't connected.  There may be a   
   > pair of missing capacitors in series with the PCIe lane, but I can't   
   > immediately see the footprints for those.   
      
   Ah, I see them now.  To the right of the spot on the silver chip are four   
   tiny spots for passives, oriented at compass bearing 135 degrees.  I can't   
   tell from the photo or video whether they're populated or not, but those   
   will be the series capacitors.   
      
   Theo   
      
   --- SoupGate-Win32 v1.05   
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