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How about a MR-BIOS ROM file repository?

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Reply 400 of 403, by Riikcakirds

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jheronimus wrote on 2025-01-09, 08:09:
There's nothing under "versions found", so yeah, this is an image presumed to exist, but not found yet. In this case this versio […]
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Riikcakirds wrote on 2025-01-08, 21:21:
Can't find a download for the Mr-Bios file named V097C5UQ (Gigabyte 440FX Motherboard) It is listed by the user jheronimus in […]
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Can't find a download for the Mr-Bios file named V097C5UQ (Gigabyte 440FX Motherboard)
It is listed by the user jheronimus in his MR BIOS catalog link above - (google spreadsheet) under Intel chipsets.
However the The Dropbox link in the spreadsheet doesn't list it to download.

I'm not clear if all the files in the spreadsheet under 'Intel chipsets' are available or do they include missing files but known to exist?.

There's nothing under "versions found", so yeah, this is an image presumed to exist, but not found yet. In this case this version was listed on MR BIOS website, there seem to be two Triton images like that. I briefly checked the sources — this doesn't seem to be an omission on my side. Same story with V09BB5AK — listed by Microid, but not included in the Evergreen files or distributed as shareware.

I suggest you try an image with the same chipset and I/O chip combo, if you have an EPROM programer and the BIOS chip isn't soldered on the motherboard.

Microid listed the I/O chip as UMC 669, but that seems like a mistake on their website. Only 8669F exists as far as I can tell, and that one is supported by at least 13 images. Is the chip on your board labeled as 8669?

The chip onboard is UM8669F, the motherboard is a Gigabyte GA586ATM/P. I think Microid just listed 'UMC 669' as shorthand for UM8669F. I will try some of the other 430fx chipsets with the same I/O.

Reply 402 of 403, by jheronimus

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Gammitin wrote on 2025-01-10, 19:04:

Hi, how do I got about submitting a Mr BIOS image please? I made a 128k bios image that works perfectly on a DEC Digital LPx 486DX2 motherboard.

The best place would be The Retro Web, you can join their Discord server https://discord.gg/HWWH7hsk2p

Or you can upload the BIOS here (simply attach it to a comment), I’ll submit it to TRW and my archive myself.

MR BIOS catalog
Unicore catalog

Reply 403 of 403, by weedeewee

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Gammitin wrote on 2025-01-10, 19:04:

Hi, how do I got about submitting a Mr BIOS image please? I made a 128k bios image that works perfectly on a DEC Digital LPx 486DX2 motherboard.

You can always post it here. 80486 BIOS image collection

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