From: google@holzapfel.biz   
      
   slavo...@gmail.com schrieb am Dienstag, 3. Januar 2023 um 16:06:59 UTC+1:   
   > Nice work, Christian!    
      
   Thank you Tom.   
   It sure helps me finding causes if I take my time and write things down,   
   explaining it to others.   
   With you folks pushing me over the edge, I finally achieved at least   
   something...   
      
   > The complex and planar VPD info isn't really "vital" in the case of the   
   > late PS/2s. But I have no clue how pedantic AIX might be about this stuff.    
      
   Following Louis' path into the ODM database by    
   odmget -q "name = sr0" CuVPD"   
   reveals  that all information I entered seems to be stored inside the ODM - at   
   least.   
      
   The labeled ICs didn't reveal any NV memory:   
      
   U15 is not a microcontroller but a MACH435-15JC °High-Density EE CMOS   
   Programmable Logic".   
   I'm not sure what this is capable of - only logic, or also hosting a soft core?   
      
   U10 is a N82LS135 "2K-bit TTL bipolar PROM°, but my cheap chinese USB prommer   
   doesn't seem to support it - at least it is not in the list.   
      
   U6 is a PAL16R66-5JC.   
      
   I will have to probe more to see if the PROM may act as program memory for the   
   U16 video processor, and if all connections between MIAMI and U15/U16 are fine.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)