r/atari • u/DarthOldMan • 4d ago
Atari 400 mod. What is this?
A friend game me an old 400 computer decades ago. It didn’t work, and I shoved it away as a potential parts computer. Flash forward to today and I open it up and find it’s been modded, but I have no idea what the mod did. Upgraded RAM maybe? Anyone happen to recognize this mess of wires and resistors? I don’t think I can revive it, but very curious. Thanks!
3
u/Toothygrin1231 3d ago
Can’t see the chip # since it’s upside down so that doesnt help. (Edit: not that it’s your fault of course heh)
Edit # 2 can see the module. The 4264-15 is a ram chip (15 ns) so may be a post consumer memory upgrade
3
u/DestinationVoid 3d ago edited 3d ago
64KB memory upgrade? That IC on board is connected to memory module and cart port - could be something for enabling/disabling cartridge bank.
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u/uid_0 4d ago
I'm not sure what that particular mod does, but back in the day it was not uncommon to see changes like this come from the factory. It was easier to have someone solder in wires/components than it was to get a new run of circuit boards made.