intel - Identifying Motherboard and CPU - Retrocomputing Stack Exchange

Question

Anyone ever see a CPU with this identification? Or does anyone know what kind of motherboard this is? Thanks

Answer 1

Apart from the unrecognized branding on the CPU (ceramic; upper-right in photo) chip, this appears to be a bog standard ISA '386 motherboard, probably running at 25 MHz.

• CPU looks like the right packaging for a 80386
• Empty 80387 FPU socket
• Quadtel "386" BIOS with appropriate late-80s Copyright
• 50.0MHz oscillator adjacent to CPU; usually provided 2x the CPU clock
• Typical VIA chipset

Of course, normal Intel or AMD branding on the CPU chip would make it obvious. I'd be concerned about the provenance of the CPU that is installed.