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I need an old XT motherboard and an 8250 UART card for a project...

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karlrschneider Donating Member (1000+ posts) Send PM | Profile | Ignore Mon Mar-21-05 10:46 PM
Original message
I need an old XT motherboard and an 8250 UART card for a project...
with some memory (think I threw all that old 30 pin stuff out years ago)

I need to update some software that won't run thru a 16550 FIFO and faster than about 20 ~ 40 Mhz processor and need to run the application so I can trace what's going on. Will be happy to pay reasonable amount. Don't need power supply, video, etc. got all that, just a MoBo,
serial card & some memory. If anybody can help lemme know...thanks
DUmail or email krs@ispwest.com
thanks!
:D
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bemildred Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Mar-22-05 12:00 AM
Response to Original message
1. Clarify ...
Edited on Tue Mar-22-05 12:01 AM by bemildred
You need a Mobo for a 386 or 486 at 20-40Mhz and a non-16550 UART card?
You don't need the CPU, just the MoBo, or CPU too?
And some SIMMs for it?

Edit: I want to be clear about what I'm looking for before I start
rummaging around.
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karlrschneider Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Mar-22-05 10:09 AM
Response to Reply #1
2. Hi, well yes I need a CPU...most of the earlier XT and 286 had them
permanently installed as I recall. So yes, mobo w/CPU and non-16550
(8250) and some memory just enough to run a very small application.
Thanks!
K
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bemildred Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Mar-22-05 10:20 AM
Response to Reply #2
3. I have a MoBo with a 486 DX4 overdrive at 100Mhz,
with memory, and the old DX33 486 CPU in a box.

I recycled my old non-16550 uart cards last year, along
with some other ancient MoBos etc., but I have an old Mouse
Systems serial card which I believe would do the job, i.e.
it's just a highly configurable serial card with no FIFO.

Sounds like you want something older?
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Sgent Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Mar-22-05 11:08 AM
Response to Reply #3
4. Have you checked out DosEMU
Its a liniux program, but I believe it has been ported to Windows, etc.

It can provide 386/25 emulation in protected mode with serial drivers, etc (both the 8250 and 16550).
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bemildred Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Mar-22-05 11:16 AM
Response to Reply #4
5. And FreeDOS:
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