classics Posted March 7, 2005 Share Posted March 7, 2005 Anyone seen this upgrade before or have a schematic of it? I found this plugged into U10, I think its supposed to be a 256k upgrade board but the programs I have run only detect 128k. Steve Quote Link to comment Share on other sites More sharing options...
themrfreeze Posted March 7, 2005 Share Posted March 7, 2005 Well, I'm no expert on 8-bit memory upgrades, but (harkening back 10+ years to my college days) I can tell you that those three chips are logic chips, not memory chips. Quote Link to comment Share on other sites More sharing options...
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