VOGONS

Identify This Old Board

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First post, by FuzzyLogic

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I recently bought this 386 motherboard, but it doesn't seem to have many identifiable markers. There is one sticker on the 8-Bit ISA slot, but I think that's the serial number or date of manufacture. It reads: IST/N 9315904. And another that reads LEO8205.

I'd like to upgrade the cache from 64k to 128k or 256k, but I need the jumper settings. I'm not sure which SRAMs would be best either. It's a SIS 460 based board, which seems decent enough. http://www.bitsavers.org/components/sis/85C460.pdf The board isn't listed on stason.org's TULARC. So I'm stumped. Does anyone have a clue?

The attachment ident-1024.jpg is no longer available

Hi-Rez:
https://imgur.com/ECWhwJ1

Reply 2 of 2, by FuzzyLogic

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Tetrium wrote:

Have you tried visually matching it in th99?
Btw, it seems to have a lot of battery corrosion 🙁

No I haven't. Actually I had no idea what th99 was. I had to Google it. Thanks for the tip!

And yes it has a lot of corrosion. The pic I got from the seller somehow didn't show any green. But the board works. I tried to remove it with vinegar but that didn't do anything. I ordered a fiberglass pen and will use that and some UV curable solder mask.

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