No theories of (or definite answers, if you know) what would happen with an 8bit-only ISA slot?
Alright, I'll get my hat.
Kyosho wrote on 2026-10-12, 18:42:No theories of (or definite answers, if you know) what would happen with an 8bit-only ISA slot?
Alright, I'll get my hat.
VGA part would not work
network would work in 8bit transfers mode
opti/pcmidi would work fine
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Though I mentioned this idea before, I waited until the SonicVision Pro was ready for prime time before asking: what possibilities does this success open up for retro combo cards in the future? I would like to replace my LAPC-I with an external Roland LA unit (which, with what the former goes for, would MAKE me money in the process), freeing up my 2nd ISA slot for what I would like to be vintage Paradise/WD SVGA & 16-bit (PAS16 or Ensoniq SoundScape, depending on what is most available and practical) audio PLUS network [the part most combo cards eschewed and I would only be able to achieve on my retro PC via USB adaptation since all my PCI slots are occupied]. If I acquired and sent you donor cards, could you extract and apply their essential chipsets to a new combination board or are there tight limits to such an undertaking?
System 20: PIII 600, LAPC-I, MK1869 Xtreme, Voodoo3, SQ2500, R200, 3.0-Me
System 21: G2030 3.0, X-fi Fatal1ty, GTX 560, XP-Vista
Retro gaming (among other subjects): https://baronsfel001.wixsite.com/my-site
No chip pinouts will match, and not many of the signals, that will be a complete do over from scratch. I am sure if you threw him $10,000 plus a dozen of each chip for prototyping, he would think about it.
Unicorn herding operations are proceeding, but all the totes of hens teeth and barrels of rocking horse poop give them plenty of hiding spots.
Designing a new PCB for chips that aren't avaliable new old stock is foolish.
It would be prohibitively expensive to acquire working hardware, only then to scrap it to make a few prototypes.
Edit: Reproduction PCBs as a way to rescue otherwise broken hardware makes sense. Such as Macintosh and Amiga motherboards to replace corrosion damaged originals.
