From: slavotinek@gmail.com   
      
   On 15.01.2023 17:23, IBMMuseum wrote:   
   > I just looked harder at my 'Type 2' Model 80 planar pictured at the   
   'Ardent-Tool'; It has a bunch of bodge-wires - and a 386DX-16MHz CPU with a   
   32MHz crystal on the planar! Now I need to look over my other T2s - That one   
   has been 16MHz the whole time!   
   >   
   > Maybe that explains an FRU difference...   
      
   The CPU clock (among other signals) is derived from the 40 MHz   
   oscillator U110. The 32 MHz oscillator U159 is used for the FPU (and   
   other things).   
      
   So, unless the board can be "jumpered" differently to change the clock   
   source, I'd say somebody installed an incorrect CPU. Can you measure the   
   clock frequency at the CPU CLK pin (or buzz the path out with the help   
   of the schematic)?   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)