First post, by Nitroraptor53
3/4/2020: Hi guys! I was wondering - how many people have a loose 486, 5x86, or Pentium Overdrive Chip and no spare motherboards? Well, apparently, quite a few! Even I have a DX4-100 (not Overdrive) that none of my 486 motherboards support! As you probably know, there's the NuXT, which I have spoken to the creator of. JD (creator of the NuXT) is willing to design a board IF I can get some results. But we're just one hobbyist, I need help.
The materials that we need that are no longer in production:
Video Chipset (VGA)
Motherboard Chipset (486,5x86,POD compatible)
So we have agreed an FPGA is required. To be more specific, two of them. One for each of the functions above. We also need a PGA237 CPU socket, with the lever, like this: http://www.cpushack.com/images/socket3.gif
For the motherboard chipset, it just needs to work with any Socket 1/2/3 CPU.
For the video chipset, I have more specific requirements:
and if you're feeling up to it:
PM me if you'd like to know more!
Also, I've been informed. An FPGA may cost thousands of USD. As much as I'd love to have that kind of money to pay you, I unfortunately do not have it. I have estimated the cost of the motherboard to be $340-550 per board. : / If you're an FPGA designer and would like to work something out, contact me @ firstname.lastname@example.org, thanks for reading.
3/24/2020: Now considering the AMD Elan 520 with cache. But two problems:
1. Where the hell do I find them in bulk???
2. Would it be possible to add cache? (512k?)
10/12/2020: I think we have to do this with an AMD Elan SC520, if at all. I might be getting some money in the next couple weeks. Would anyone, if I get this money, design a board with the Elan SC520 as a CPU? PM me if so, and let's talk.