VOGONS


First post, by Madao

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Hello People

Does know someone this SiS Rabbit Motherboard ?
It has marking "AR412A"

Thanks
matt

Reply 1 of 4, by Horun

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BIOS code 1259 is for GVC Technologies. Closest on a very quick inspection is this GVC 386-40: http://www.win3x.org/uh19/motherboard/show/2798

Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun

Reply 2 of 4, by Madao

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Yes, you're right.

jumper setting is correct.

This board was dead, need replaced 3 IC (one crack by trowing to scrap), two is damaged by leaked battery.
Scratch on pcbs.. But now , life is back .

Thanks
Matt

Reply 4 of 4, by Madao

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It is not slow, or ? (40Mhz is not correct, it is 25Mhz )

Really many part broken.
Dead 80Mhz xtal
mechanical broken 74LS245
2x mechanical broken 33 ohm resistor array
many etched pcb trace (nicd-puke)
broken keyboard-controller (always freezed by POST 8C or restarting)