3dfx Voodoo Memory Expansion Board - Rev 1.0
The PCBs are used to clip on the Guillemot MAXI Gamer 3D Voodoo Graphics Accelerator.
Usual memory size for those cards were 4 MB. With the help of the PCBs, you can get the Voodoo up to 8 MB.
There is a requirement to solder one wire to the TMU pin 130 and connect it through a 47Ω to pin 14 of the on the upper memory row. J1 needs to be shorted (closed).
The FBI chip requires two wires from pin 180 and from pin 199. Both wires need to connect to the PCB with J1 open.
Gerber files and more details can be found on GitHub:
https://github.com/BitsUndBolts/3Dfx-Voodoo-Memory-Mod
You can watch my videos on this topic:
Cheers,
BitsUndBolts
3dfx Voodoo Memory Expansion Board - Rev 1.0
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