From: ohland@charter.net   
      
   No love findting drivers... documentation.. or more than one article...   
      
   But... when it comes to flights of fancy, I admit to few equals, and no   
   betters...   
      
   All Micro Channel systems either have VGA on the system board, or XGA.   
   Either video type will have an HDD15 port -AND- an AVE slot. For systems   
   without built-in video, you will see the BVE / AVE slot combination.   
   Think of the 85 / 95 / Bermuda systems.   
      
   The Nth Engine/MCA has neither an Auxiliary Video Extension, no VFC   
   [whatever] 26-pin header, nor does it have an HDD15 pass-through. It has   
   the standard 16-bit MCA connector. Full stop.   
      
   The DB9 port has some fairly expensive and unusual Reed Relays on three   
   signals. There are three traces [on the solder side] that run up to   
   connect to the HDD15 port at the top of the bracket.   
      
   So, my SWAG is the DB9 is a video port. I don't believe you could run   
   the HDD15 -AND- the DB9 port simultaneously. There is no separate RAMDAC   
   for each port.   
      
   So... my Super High Intensity Tinkering movement for the day is to   
   guesstimate the DB9 is an RGB [3x BNC] or maybe a composite sync [4x   
   BNC] video port.   
      
   Odd, I was thinking the reed relays were to isolate the video output of   
   the sole RAMDAC from the unused video connector, but the HDD15 traces go   
   straight over to the RAMDAC. The traces from the COTO 2911 come off pin   
   1 on the input side and run up to the HDD15.   
      
   Randy Marsh would be proud of me.   
      
    From the one-quarter column article, I "assume" there was an ISA   
   version of the Nth Engine. I do know of an ISA Nth Engine/ 550.   
      
      
      
   Louis Ohland wrote:   
   > Nth Engine 330 Display Controller ?   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)