Going by pinout and socket type it's a pretty generic 80386DX 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.

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 the presence of two SL9020 Memory Data Controllers 'below' the CPU - a 386SX would only need a single SL9020.

Going by pinout and socket type it's a pretty generic 80386DX board based on the VIA FLEX I chipset (SL90xx). Probably 1990/91ish.

Going by pinout and socket type it's a pretty generic 80386DX 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.