I worked out the BIOS files generated by GETROM. The F1ODD/F0ODD and the EVN versions were the same. So I burnt 27c256 eproms with 2x copies of each and it worked. Encouraged by that I also tried another BIOS found here for a Japanese 286 m/b with VLSI chipset, and that worked too. And with that …

Ok, thanks, well I'll live with 1mb for now then, it's not like I don't have others with more RAM! Another annoying issue with this board, in fact there are 2: When it starts it always reports 'EQUIPMENT CONFIGURATION ERROR - RUN SETUP' even though everything is fine there, unless it's related …

Another question related to this m/b.... The board installed DIP chips that it came with give me 1mb of RAM. I adapted 4x 1mb SIMM sticks to SIPP and installed those. It made no difference. With the DIP RAM removed the 4x 1mb sticks do work and also give the machine 1mb RAM. Is the extra SIPP RAM …

Here is the result of GETROM. I'm not sure how the resulting files make sense, i.e. which is complete odd, which is even etc. So everything is in this zip. First it produced a 64k file, called ATROM. Then it split that into 2x32k, called TEMPEVN and TEMPODD. Then I split each of those files into …

Yes, ok, will do that tomorrow. It only has a working 5.25" drive, but that's ok, I can put those files on a 5.25 disk using another machine.

Hello Deksor. I did attempt to but the PROMS are not UV EPROMS, they are marked SDL128 and R3 T002 (both are the same I assume, but so far I've only lifted one sticker). I think the '128' part probably indicates a 27128/27C128 so I tried a couple of well known brands but it reported wrong/bad pins …

Sorry to dig up this old thread, but I've just ended up with a 286 that has the same motherboard (with minor differences, e.g. the CPU is Siemens branded). Back is also marked VLSI-4A 90501. It's in great shape, no battery leakage (I will remove it of course). It works and was installed so I at …

Hello Skyscraper. Thanks for your comments. All the traces I can see around the battery area and along the whole length of that side, as well as some corroded ones further in closer to the battery, all check out fine. I'll have to assume that the problem is somewhere inaccessible and I don't think …

Right, ok, that's a shame but fine, it was not my intention to encourage the breaking of any rules.

Great find, thanks.

I also have a Gigabyte GA - 586ATV board that is working perfectly with a Pentium 100. As it's fitted it's hard to do decent pics, but it was a m/b that I was able to find a manual for: https://download1.gigabyte.com/Files/Manual/m … al_586atv_e.pdf

Awesome !! I have added this image to the page. I also went through the effort of creating a new schema to illustrate the features of that motherboard. The only thing it's lacking is a proper document to list what each jumpers do but I haven't programmed an easy way to do that way. The motherboard …

This pic is better, including original BIOS chip. I am involved a little with other types of computers, collecting software/hardware, recovering stuff, so understand that it's important for these things to be preserved. Someone will find this/your page and it may help out.

You're probably right about the green. Odd that it seems to migrate to the tops of the contacts. I don't think it's going to be worth the time to remove every ISA slot, everything else in the red areas and maybe more. As an aside: by far the cleanest ISA slot with hardly any green is the one closest …

Hello, thanks. I thought the green corrosion on the ISA slots may be due to a damp storage environment. The BIOS socket was also a bit green, but I was able to remove the chip and read it (and put the contents onto a newer EPROM with clean pins). I'll attach it. I've deoxit'ed a lot and also checked …

Hello everyone. I have this 486 m/b that had suffered battery corrosion and found this forum as the exact same m/b was mentioned and shown by Skyscraper a couple of years ago. Mine has less battery damage so I'm hoping it's ok. So far the graphic card it came with seems to be dead so although with …