lti wrote on 2023-01-01, 21:22:

I also have a new board to add. It's a Gateway Anigma 586. I don't know how to handle the optional features on this board. My ca […]
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I also have a new board to add. It's a Gateway Anigma 586. I don't know how to handle the optional features on this board. My camera isn't very good, but I have pictures of one without audio or video (and with the power supply fan header desoldered).
Form factor: ATX
CPU: Pentium P54C and P55C
Power connector: ATX
Chipset: Intel 430TX
FSB: 60MHz or 66MHz
RAM: SDRAM, maximum 256MB
Cache: 512k
Video (optional): ATI RageII+, 2MB of RAM
Audio (optional): Ensoniq ES1370
I/O: 1x floppy, 2x IDE, PS/2 keyboard and mouse, 2x USB, 1x parallel, 2x serial (1x DE9, 1x header), infrared, 1x VGA (optional), audio (line out, line in, microphone in - optional), 1x gameport (if audio is installed)
Expansion slots: 3x ISA, 4x PCI (3x PCI if audio and video are installed)
This board has a really strange and crude switching VRM circuit, but I don't know if it warrants an "insufficient power delivery" warning. One USB port can be routed to the front or back panel.

https://theretroweb.com/motherboards/s/anigma-sci-586-pci

evasive wrote on 2023-01-18, 08:20:

Babasha wrote on 2022-10-19, 07:22:

Rare motherboard ABIT VH-20, BIOS, switches and photos - Re: #freshmeatrecovery - Abit VH-20

added. found some info:
https://mobile.twitter.com/S0N1Cua/status/160 … 646721146703872

Ha-ha! Its my baby in new owner hands! Nice mod)))

evasive wrote on 2023-01-18, 08:21:

Yes, we still want the bios as we don't have it yet.

Here you go, dumped via EPROM programmer - looks to be compressed and produces different image then in-system dump via NSSI.
The EPROM was identified as TI TMS27C512, not sure what speed as I didn't remove the sticker. Modern 90ns or better parts should do fine I think.

EDIT: If anyone finds a manual with jumper settings for this exact mobo model that would be great. I experimented a lot and I still haven't found a way to properly set it for Intel 486DX2 with WB L1 cache.

Manual & EISA Config archive for the ECS SL486VE - https://theretroweb.com/motherboards/s/ecs-sl486ve

https://easyupload.io/zsflza - this is a time limited (30 day) link

I couldn't find this on Retro Web.

MG-1886
386sx 25/33 MHz
Headland HT18/F chipset
AMI BIOS
30-0200-428021-00101111-121291-HT18C-Pa-F

Pictures and BIOS can be found here.

Curious if you could add in downloads page a bios text description in docu's that describes what each bios date/has/does/whatever.
Yeah would take a long time to update many of the older pages but on any newer ones as added would give the person the ability to see what each version covered and if an update would help them.
Just a thought....

I thought of this, but the issue is that boars manufacturers don't often list those, especially back in the days.

And also many bioses were just not available and instead were dumped straight from the board, do it's very hard to determine what changed between two versions.
It sounds good in paper, but the feasibility of this is very small sadly

Deksor wrote on 2023-02-10, 14:39:

Re: Manual for Apricot XEN i-386 or how to enter BIOS ?

another entry for the retro web

ICP SSC-5X86HVGA
https://theretroweb.com/motherboards/s/icp-ssc-5x86hvga
Dumped the BIOS image and took some pictures. Also, found the full manual.

This:
https://theretroweb.com/motherboards/s/ecs-k7sem-v1-x

looks pretty much the same as this:
https://theretroweb.com/motherboards/s/shuttle-ms21l

Even the BIOS setup is the same.
So may be a link could be set between them.

I also compared some of the photos between the TRW page for the K7SEM v1.x and Shuttle's page for the MS21. ChrisK is right on this one - they're the same board - much like the AK12A is the same board as K7VzA Rev3.0 (as far as I remember)

A few more I found out:

Syntax SV400/SV400A - ECS L7VTA2
Syntax S661M - ECS 661FX-M