Subj : Re: win 3.1 on intel inboard
To   : hyjinx
From : kirkspragg
Date : Thu Jun 19 2025 22:55:12

 hy> figure out a way to change the speed of the bus on this 5160, but to be
 hy> honest, nothing is so slow right now that I'm in a world of pain. The
 hy> main task was to be able to use protected mode and that has been
 hy> achieved. The secondary goal was to multi-task in a meaningful way, with

So beyond an intel modified win 3.0 & desqview, have you manged to get any other protected mode apps or games working?

I wonder if the usual dos extenders (DOS4GW) would work with your setup or would they fail like win 3.1?

I do wonder if using an alternative memory manager like QEMM will help, QEMM 
provides DPMI so may allow some dos protected mode extenders like DOS4GW to work with an intel inboard 386.

 hy> I'm reaching out to a friend who (might) have a 386->486 top hat cpu
 hy> upgrade. That would be wild!

That would be really cool to see in action, I really hope it works out & we get to see the result on your youtube channel.

 hy> Have you ever up-clocked the bus speed on the original 5150/5160? If so,
 hy> I'd be interested to hear what you did!

With an original 5160? Not aware of anything that would allow you to get the
ISA bus running faster, though there were ways to use higher clocked
8088/NECv20 cpus at around 6-7Mhz with something called PC sprint which you are probably aware of (if you aren't google it or search vcfed's forums, there a bit there about it there). Ctrl-alt-rees has a video about it on his channel as well.

What about a turbo XT clone motherboard? Those had higher speed ISA buses, I wonder how the intel inboard 386 would work with one of those?

Thanks again for sharing you Intel Inboard 386 experiments & experiences with us, thats a really cool bit of hardware you've got there!

.... I am Dvorak of Keyborg. Resistance is Qwerty.

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