206 parts are mostly fully compatible "integrated perhipherals controllers", clones of Chips 82C206. Many manufacturers made them and they're often paired with many chipsets.

Are you aware of the pinouts and feature lists of the UMC 480 chipset at https://datasheet.datasheetarchive.com/origin … 2IH00218654.pdf ?

well, I was updating the VIA datasheets section on bitsavers this morning, and discovered that the 100 pin part seems to match the pinout of their 82C416. The description seems to match the functionality as well.
so BOTH boards have the wrong parts ???
wish I could find info on the 406

In the process of doing a chip swap, this is what was found under the parts.
so as I suspected BOTH boards have the wrong parts

So the chipsets are relabeled VIAs?

No, positively absolutely BOTH boards were stuffed with the WRONG chipset
No other part from other vendors functions the same as the 82C406.
The parts put down on the boards were WRONG

Now, I have to figure out all of the missing jumpers and try a BIOS for the correct
chipset. I have one from a single board industrial computer that may work to the
point where POST codes come out.

did someone on the list buy this ratty mb https://www.ebay.com/itm/198029689977 (hopefully they got it cheap)
I'm interested in a dump of the bios

Al Kossow wrote on 2026-01-21, 16:23:

did someone on the list buy this ratty mb https://www.ebay.com/itm/198029689977 (hopefully they got it cheap)
I'm interested in a dump of the bios

FYI, seems to be another version of this https://theretroweb.com/motherboards/s/fic-486-pvt-rev.-b2 or b1

cool. and that has a 5.12 bios

I still haven't given up on trying to bring that weird via chipset board with no keyboard controller or separate clock generator back to life
I didn't see any 5.xx award bios listed in the retro web award bios table

I also notice the chips list incorrectly lists the 82c416 instead of a 82c406