Guillaume Tello wrote:   
   > Hello,   
   >   
   > I have two Atari TT Ram boards, one with 4Mb and the other with 16Mb.   
   > I noticed that they share the same square IC C300869-001A. So I'm   
   > wondering if the 4Mb one can be upgraded to a 16Mb by changing the   
   > SIMMs (you can say: just do it and you'll know... but they are   
   > soldered! and it's too long a work if the answer is NO).   
   > The 4Mb has number CA400312 and only three jumpers W,W2,W3.   
   >   
   > Guillaume.   
      
   hi,   
      
   yes it seem possible to upgrade this board.   
   Martin-Éric Racine web page wasn't online anymore but I put a   
   backup of this page here   
   < http://the.protos.free.fr/TT030/tt-ram.htm >   
      
   SeeU   
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