VOGONS


First post, by Babasha

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Hi!
I receive Radysys PIC-3 4900 arcade/slot machine motherboard based on 486 CPU in "industrial" format.

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And with two additional compactflash 64MB cards

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Download chipset Radysys R400EX techspecs and will try to reanimate it with conversion to "usual" PC

Sadly all connectors are in propiertal format (except one MOLEX connector). As i understand MS/KBD (10 pin connector is PS/2 mouse/keyboard) can be invistigated by 5V and GND lines. VGA (10 pin connector) can be invistigated by CIRRUS LOGIC standard diagram (all RGB signals already visible and should find other VGA sync and GND signals).
Maybe someone already got the schematics or additional info for connectors or jumpers of such card? And utilities for later reformat of onboard 16MB flash disk and CF cards?

Need help? Begin with photo and model of your hardware 😉

Reply 1 of 2, by rasz_pl

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Your post reminded me I have ancient National/AMD Geode based Set Top Box stashed somewhere. Hopefully your progress will motivate me to dig it up and have a play with mine.

https://github.com/raszpl/FIC-486-GAC-2-Cache-Module for AT&T Globalyst
https://github.com/raszpl/386RC-16 memory board
https://github.com/raszpl/440BX Reference Design adapted to Kicad
https://github.com/raszpl/Zenith_ZBIOS MFM-300 Monitor

Reply 2 of 2, by Babasha

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rasz_pl wrote on 2024-11-27, 02:39:

Your post reminded me I have ancient National/AMD Geode based Set Top Box stashed somewhere. Hopefully your progress will motivate me to dig it up and have a play with mine.

Just for memo. Will continue investigation later.

Need help? Begin with photo and model of your hardware 😉