Looks curiously sparse plus the barcode sticker = some OEM system board. Actually thinking some more no serious OEM would use such sparse board, it doesnt even have onboard 3.3V IO/ram regulator, must be some extreme low end.
edit: MatsonicMicronics, extreme low end https://theretroweb.com/motherboards/s/bcm-qs440bx

BCM has no connection to Matsonic, however, as TRW lists it as well, Diamond Multimedia had sold BCM's board under their name.

Not bad at all, considering I see genuine Nichicons and Rubycon caps on it.

Had it been a Matsonic, the OEM would have been ECS, or in some cases, Chaintech (look at the CT-6BTA2).

That green pcb and the front panel IO layout made me think of QDI but it definitely does look like that one that rasz linked

rasz_pl wrote on 2023-10-23, 18:25:

edit: Matsonic, extreme low end https://theretroweb.com/motherboards/s/bcm-qs440bx

Interesting extreme declarative definition. Could you explain in more detail "extreme low end"?

Sorry, its Micronics not Matsonic, I cant read 😒
Matsonic was bottom of the barrel barely works vendor, often selling same renamed Amptron/PCChips dreg. ECS absorbed all of this garbage in 2005 to bulk up its manufacturing capacity.

rasz_pl wrote on 2023-10-24, 04:36:

Sorry, its Micronics not Matsonic, I cant read 😒
Matsonic was bottom of the barrel barely works vendor, often selling same renamed Amptron/PCChips dreg. ECS absorbed all of this garbage in 2005 to bulk up its manufacturing capacity.

For example I've two very old, not expensive, but still perfectly fine and working PCChips (later ECS/Elitegroup) boards with no fake cache chips. I can not say they're low end as they used gold plated connectors and their capacitors are more than OK near 30 years later. Yeah, back in the time the support for these boards was not so good, but at least there were some BIOS updates releases through three to four years. And of course this doesn't mean that this brand wasn't produced absolutely bad motherboards - we all know about their fake cache chips mobos (except I never seen one in person).

But I also have some not cheap, but low quality production mobos (bulged, leaky cheap chinese caps, cheap components, etc.) from "better" and "respected" brands like Gigabyte, Asus, Quanta, etc. They also have very limited support of only two or three years of BIOS updates. Of course Asus and Gigabyte made and still make boards of high quality, but this doesn't mean that all of their production is lacking low-end quality sh*ts.

This unknown (BCM/GVC/whatever ???) board here looks OK (no visible bulged or leaky caps) and I saw on the link to theretroweb site that there're BIOS updates from four calendar years ('98-2001).

So, there's absolutely no reason for these cliches kinda "oh, this is AsRock motherboard, so it rocks... yay, this is PCChips/ECS it's just cheap piece of sh*t". This is always motherboard specific and more expensive doesn't always mean high quality.

That board linked by rasz_pl looks really close, diffrent capacitor layout there near the socket. Thanks for taking a look around. Board post and has ISA and AGP slots that work so I'm happy, it's just a gonna be a lil hobby win98 machine for dos and some older DX titles that I wanted to run on the bare metal and not waste power with a VM on my server.

Probably won't give any more information that you've already got, but if you can make a note of the BIOS string when the machine boots then you might be able to look up a manufacturer code: https://www.dosdays.co.uk/topics/mobo_ident.php