According to the manual, the expansion slots on this board run at 4.77 MHz even when the CPU is running at 7.16 or 10MHz.

Greetings.
Can you please share ROMs contents of this board? Mine is basically the same (minus half 44256 slots), but with a strange BIOS (same sticker, but with v1.07 written by hand). Both halves that should be even/odd are almost identical, and I think that's why my board appears to be dead (no video, no beeps).
I've attached my ROM dumps, just in case, in raw and intel hex formats.

Sorry I sold this board.

In the future, I will get all ROM dumps. 🙁

I have a quite similar one, but without HI/LO Bios. But you should be able to split my file. I had difficulties getting it running because of the weird RAM configuration, but now it works. Try the Supersoft-ROM for diagnosis 😉

Jager wrote on 2018-11-13, 15:09:

Greetings.
Can you please share ROMs contents of this board? Mine is basically the same (minus half 44256 slots), but with a strange BIOS (same sticker, but with v1.07 written by hand). Both halves that should be even/odd are almost identical, and I think that's why my board appears to be dead (no video, no beeps).
I've attached my ROM dumps, just in case, in raw and intel hex formats.

Unbelievably, I obtained the SAME TYPE OF BOARD AGAIN (Hi/Lo, ver 2.01), in a complete computer, with a bootable hard disk and high density floppies, which both work.

I'll be dumping the ROM at some point.

PM me if interested 😉

If you can put it here online on the forum that would be nice.

If iam going to test my 8086 NEC V30 motherboard i will also upload those roms as well.

Robin4 wrote on 2021-01-22, 05:23:

If you can put it here online on the forum that would be nice.

If iam going to test my 8086 NEC V30 motherboard i will also upload those roms as well.

That's the plan - it's retrobriting now (indoors, severe yellow,even orange-ness) so it'll be doing that by itself for the next couple days, but yes, I will post the dumps here.

😁

Were the ST and the NEST produced side by side? And if so, does BIOS version on the ST correlate to the version number on the NEST? If so, and there were late BIOS releases for the ST but not for the NEST, it should be possible to split the ST ROM into even and odd banks for use on the NEST.

Jed118 wrote on 2021-01-22, 00:17:

Unbelievably, I obtained the SAME TYPE OF BOARD AGAIN (Hi/Lo, ver 2.01), in a complete computer, with a bootable hard disk and high density floppies, which both work.

I'll be dumping the ROM at some point.

PM me if interested 😉

Thanks, but I already obtained one from Anonymous Coward. I even restored original one (1.07).

Robin4 wrote on 2021-01-22, 05:23:

If you can put it here online on the forum that would be nice.

If iam going to test my 8086 NEC V30 motherboard i will also upload those roms as well.

What are you using to dump the ROM? Usually I use NSSI, but when I run it on the V30, I get a text summary only.