I have this board, let me know if there is interest in the Mr. BIOS from it and I can dump and upload:

Pino wrote on Yesterday, 20:40:

I have this board, let me know if there is interest in the Mr. BIOS from it and I can dump and upload:

yes please dump it - if possible with a programmer 😀

Pino wrote on Yesterday, 20:40:

I have this board, let me know if there is interest in the Mr. BIOS from it and I can dump and upload:

Oh, please do. We don't have this version currently, it's a pretty common chipset and it's a pretty recent version.

keropi wrote on Yesterday, 20:59:

Pino wrote on Yesterday, 20:40:

I have this board, let me know if there is interest in the Mr. BIOS from it and I can dump and upload:

yes please dump it - if possible with a programmer 😀

Unfortunately I don't have a programmer, what is the next safest way to dump it in DOS?

This should work--

1DEBUG.EXE
2N MRBIOS.BIN
3R BX 
41
5R CX 
60 
7W F000:0
8Q

should look like this when you run it:

1DEBUG.EXE
2-N MRBIOS.BIN
3-R BX 
4BX 0000  :1
5-R CX 
6CX 0000  :0 
7-W F000:0
8Writing 10000 bytes
9Q

fyi: 10000 bytes = 64KB

Thanks!

Here it goes, I made 2 copies one using your DEBUG instructions and one with the NSSI software mentioned on the first page of this thread.

Hopefully it works.

Ps.: Amazing that this old 486 VLB board with this BIOS booted DOS from my 32GB SD card.