CPU Shack: Mini 386 Motherboard - SOLD

[CPUShack]

Board is marked 317PGA kinda like a Shuttle HOT 317 but a little different
Has a 386 and 387 socket, jumpers for 50/60/80M (MHz?)
OPTi 82C495SLC chipset

8x 30 pin SIMMs
Battery has leaked a little but not terrible

$15 and its yours (if you cant make it work I'll refund ya)

[Robev]

I will take it please

[Chook]

I'd say those jumpers are for setting the crystal, which usually operates at twice the clock speed. So that would set 25, 33 and 40Mhz clock speeds. This is a bit odd as 386s usually didn't have user selectable clock speeds. This would be a nice board to build a late model retro 386 system.

[ph4nt0m]

Looks good. 128Kb cache. The chipset can take 32Mb of memory.

The BIOS and keyboard controller are soldered. Could be a problem sometimes.

It's better to chop off the battery now because it has started to leak already.

[High_Treason]

A lot of later 386 boards seemingly did have jumpers, the early ones used to have you rip a crystal out of a socket and change it, some 486 boards even did that. If you look at the bottom left of the photo you can even see pads for a four pin crystal with the clock generator sat inside that space, possibly earlier revisions didn't have that where this board seems to have been made in the latter half of 1993.

That chipset should support the 486DLC chips I think, provided the options are there in the BIOS, namely Hidden Refresh.

[CPUShack]