Socket 3 486 VLB Freetech mobo, quick test \ VOGONS
Socket 3 motherboards and pushing their limits | ancientelectronics
MB-8500TVX-A Biostar Socket 7 Baby AT motherboard with 4 ISA 3 PCI 4 72
Anigma Socket 3 486 Pentium Motherboard No CPU BAT486IP
MBDPCI008AAWW Motherboard Socket 3 Intel Chip AS-IS for Parts or Repair 3468510 | eBay
The GIGABYTE MZ72-HB0 (Rev 3.0) Motherboard Review: Dual Socket 3rd Gen EPYC
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,