First post, by ratfink
So I set this thing up with a PSU, 512mb ram, CD drive.
It's worked with 4 hdd's that other machines had problems with. [Edit: now its failing with a drive that works in my 386. I think the psu I'm using or the mobo itself is faulty.]
Luckily I had copied my dos 5/win3.1 installation to a 2gb transcend cf drive. System boots into dos from the cf drive. Win3.1 will not start, screen goes blank then back to the C: prompt.
I put an sb2 in - boxed but untested [without the box of course...]. Jill of the Jungle loads but despite seeming to detect the sb2, fails to make any noise. Megaem detects the sb's dsp version so I guess the card isn't dead, but megaem is looking for a midi port so doesn't help really. XWing runs but no sound.
Tried changing bios settings - non-pnp bios, irq's set to legacy, dma's too. Disabled everything I could [usb, serial, parallel, smbus etc]. Played with a few other settings not really knowing what they do, nothing had any effect. There's a "moon isa" setting for enabling the on-board pci/isa bridge. Also settings for isa 8-bit and 16-bit recovery and for each dma, you can set dma type to pc/pci or lpc dma. No idea if any of that should be tampered with.
Will have to check the sb2 in something else I guess, but I'm tempted to conclude the nmi isn't implemented. I assumed with isa slots the nmi issue would not arise. [edit - sb2 works in my 386 box].
Also I can confirm the system cannot be slowed - you can disable HT but not the cpu cache. Multiplier and fsb are locked although the bios appears to support changes to the multiplier if the cpu accepts them. The bios does mention support isa video cards though, under palette snooping options, and even a Mono Display Adapter.
edit Looks like the sb2 needs -5v, no idea if the psu i'm using has that, but that could maybe be the reason that card fails here rather than anything to do with system speed.