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16

I inquired about the CPU over on ee.se. The chip appears to be an AMD Am386DX-25. Compare the lower printed number (107M7NX and 107M7NZ), the fonts used, the logo at the bottom-right, and the laser-etched number (23936). Unknown chip Am386DX-25 Source: computerbase.de via @SpehroPefhany's answer on ee.se @njuffa has pointed out that the logo laser-etched ...


13

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 ...


6

Going by pinout and socket type it's a pretty generic 80386DX (*1) board based on the VIA FLEX I chipset (SL90xx). Probably 1990/91ish. It would need a better set of photos - especially of the backside to find some hint. Finding the correct type without further marking is next to impossible, as many did produce following the same layout. *1 - Visible due ...


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