From: slavotinek@gmail.com   
      
   On 18.12.2023 21:49, Christian Holzapfel wrote:   
   > Looks great, thank you Tom!   
   >   
   > Did you stumble upon any evidence of the earlier board versions implementing   
   the S3 Vision 864 (not 868) video?   
   > One of my boards is like that, I think the difference is it's lacking video   
   acceleration.   
      
   That's interesting!   
      
   Both my PC730/750 planars have the '868 video controller. Only my   
   Japanese PC720 (486 box) has the lower-end '864 variant. I wasn't aware   
   that some PC730/750 planars used the '864 as well. Can you please check   
   if the board shares the same P/N? The planar is also used in the PC   
   Server 310. Maybe the server boards use the '864? Dunno, more data needed...   
      
   Not sure what the differences are between the 864 and 868, but I know   
   they are pin-compatible. We have the data books here, if you wanna   
   investigate:   
   https://www.ardent-tool.com/datasheets/S3_Vision864.pdf   
   https://www.ardent-tool.com/datasheets/S3_Vision868.pdf   
   (the 868 document lacks a bunch a info and references the 864)   
      
   > Did you get the 1 MB cache configuration going, or your L2 cache working at   
   all?   
   > My 256 KB don't seem to appear in any common diagnosis tools like cachechk.   
      
   I'll check if the base 256K L2 shows up in diags and benchmarks.   
      
   I'm pretty sure I don't have compatible SRAMs and TAG chips to expand   
   the cache.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)