Looks like Opti Local Bus, not EISA.

Nunoalex wrote on 2023-05-26, 22:57:

Hi […]
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Hi

I'm reaching out to seek help identify this motherboard I recently bought on an old hardware add

The board has a 386dx-40 processor and a math co-processor
Unfortunately the bloody varta did its thing and there is severe damage
I pulled the battery off and washed the board with vinegar and so far have not done anything else to it

What is very curious is that it seems to have an EISA slot...
I'm not expert in EISA but on the back of the motherboard there are twice as many solder joints as there are on the oher ISA slots

Can someone help identify it ?
On retroweb I could not find any reference to it
Tomorrow I will try to post better pictures

Best regards !

Limited info, but this looks close https://theretroweb.com/motherboards/s/unknow … cache-mainboard

Grzyb wrote on 2023-05-26, 23:17:

Looks like Opti Local Bus, not EISA.

this. do NOT put an EISA card in there

Grzyb wrote on 2023-05-26, 23:17:

Looks like Opti Local Bus, not EISA.

OMG you guys are right
I have never heard about an "OPTI" bus until today

Gosh there were so many proprietary buses back in the day

thank you so much... now good luck trying to bring it back to life... no POST codes whatsoever

I'm waitin for my desoldering gun to arrive to start desoldering components and check for destroyed traces

Thank you everyone

I will update the retroweb page and try to get a copy of the BIOS