Finally took a chance on one of those cheap eBay 486 boards from Ukraine. It showed up after about a month exactly as advertised! Listing said it sometimes boots and sometimes doesn't,
Interesting Motherboard Repair That You Should Not Miss | Electronics Repair And Technology News
486 motherboards, cpu's and some VLB stuff | AmiBay
Fast 486 VLB vs PCI. \ VOGONS
Have a look at this big beautiful early 486 motherboard I saved from scrap. : r/vintagecomputing
Hauppauge 4860 - GeekDot
486 motherboard, before and after cleaning! : r/computers
Help identify my 486 motherboard?! \ VOGONS
IBM 486SLC2 CPU: When a clone isn't a clone - The Silicon Underground
My 'Ultimate' 486 Build Revisited – Socket 3
486 motherboard ID \ VOGONS
ISA/VLB/PCI 486 motherboard I recently picked up. No fake cache here! : r/vintagecomputing
486 chipset race
Which 486 board \ VOGONS
The 486 CPU Era – The Birth of Overclocking. – Part 2 | The CPU Shack Museum
File:AMD AM486DX-4 120 motherboard front and back.jpg - Wikimedia Commons