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Inboard 386/PC 2mb expansion CLONE

Another complete ParrotyError expansion board! Thanks @harrison.frazier for all of your help on Reddit. I went ahead and installed and tried to run DOOM. Has anyone had any luck getting the keyboard working with DOOM?
20231117_115357.jpg
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Full System Specs:
original 16Mhz i386 with added 387
5MB total system memory
ATI VGA Wonder-16 with 256K VRAM
MF-100A serving as a serial port
Original IBM floppy disk controller (waiting for a TexElec QuadFlop)
XT-IDE with 64MB CF card
CTX VGA MultiSync monitor

Has anyone tried pairing the inboard with the 5161 expansion cards? I'm thinking about trying to build a diy expansion chassis so that I can get a few more expansion cards since I'm fully maxed out.
 
mtrahms said:
Another complete ParrotyError expansion board! Thanks @harrison.frazier for all of your help on Reddit. I went ahead and installed and tried to run DOOM. Has anyone had any luck getting the keyboard working with DOOM?
View attachment 1268162
View attachment 1268163
Full System Specs:
original 16Mhz i386 with added 387
5MB total system memory
ATI VGA Wonder-16 with 256K VRAM
MF-100A serving as a serial port
Original IBM floppy disk controller (waiting for a TexElec QuadFlop)
XT-IDE with 64MB CF card
CTX VGA MultiSync monitor

Has anyone tried pairing the inboard with the 5161 expansion cards? I'm thinking about trying to build a diy expansion chassis so that I can get a few more expansion cards since I'm fully maxed out.
Click to expand...
Woo! Nice! Oddly I was not able to get doom to launch, so I'm not sure about the keyboard situation.
 
harrison.frazier said:
Woo! Nice! Oddly I was not able to get doom to launch, so I'm not sure about the keyboard situation.
Click to expand...
I've been looking at it a little bit more and it seems like my Jonas got a doom tech demo running in another thread and I've asked there. Next up, seeing if I can get Win95 to work or at least MS-DOS 7.1 (for the FAT32 support).
 
mtrahms said:
I've been looking at it a little bit more and it seems like my Jonas got a doom tech demo running in another thread and I've asked there. Next up, seeing if I can get Win95 to work or at least MS-DOS 7.1 (for the FAT32 support).
Click to expand...
Yeah I don't know enough about how all the virtual device drivers (and whatnot) work but it would definitely be a feat to get Win95 running! Dos 7.1 would be more attainable I would think.

I have my stock IBM floppy controller with the 360K drives installed still. Does anyone's floppys stop working after booting into windows? (It may be my Cyric 486 upgrade that is breaking it)
 
harrison.frazier said:
Yeah I don't know enough about how all the virtual device drivers (and whatnot) work but it would definitely be a feat to get Win95 running! Dos 7.1 would be more attainable I would think.

I have my stock IBM floppy controller with the 360K drives installed still. Does anyone's floppys stop working after booting into windows? (It may be my Cyric 486 upgrade that is breaking it)
Click to expand...
Does the Cyrix 486 upgrade include a replacement BIOS? Even much slower turbo chips broke the floppy routines in the IBM BIOS.
 
mtrahms said:
Another complete ParrotyError expansion board! Thanks @harrison.frazier for all of your help on Reddit. I went ahead and installed and tried to run DOOM. Has anyone had any luck getting the keyboard working with DOOM?
View attachment 1268162
View attachment 1268163
Full System Specs:
original 16Mhz i386 with added 387
5MB total system memory
ATI VGA Wonder-16 with 256K VRAM
MF-100A serving as a serial port
Original IBM floppy disk controller (waiting for a TexElec QuadFlop)
XT-IDE with 64MB CF card
CTX VGA MultiSync monitor

Has anyone tried pairing the inboard with the 5161 expansion cards? I'm thinking about trying to build a diy expansion chassis so that I can get a few more expansion cards since I'm fully maxed out.
Click to expand...
Awesome setup! why do you need 4 floppy drives on this? also how do you plan on installing them in that case?
 
harrison.frazier said:
Yeah I don't know enough about how all the virtual device drivers (and whatnot) work but it would definitely be a feat to get Win95 running! Dos 7.1 would be more attainable I would think.

I have my stock IBM floppy controller with the 360K drives installed still. Does anyone's floppys stop working after booting into windows? (It may be my Cyric 486 upgrade that is breaking it)
Click to expand...
I have no issues with the floppies however I do have an issue booting from them, if you ignore the need for booting from a floppy they run fine under 6.22 DOS
 
saifbadri said:
Awesome setup! why do you need 4 floppy drives on this? also how do you plan on installing them in that case?
Click to expand...
I don't really need 4 floppy drives. The Quad-Flop allows me to use 1.44 MB floppy drives. As an added benefit, since I'm planning on building a bootleg 5161 expansion unit, I'm planning on putting a 1.44MB drive and a GoTek in that and keeping them in the expansion unit while keeping the 5150 as close to visually stock as possible.

As a note, in order to use the Quad-Flop in the 5150 with the inboard, I had to downgrade the bios to Sergey's Multi-Floppy Bios version 2.4. I think that versions 2.5 and onward automatically try to detect what type of delay to use for the system and detect AT style delays, which locks up the system.
 
saifbadri said:
I have no issues with the floppies however I do have an issue booting from them, if you ignore the need for booting from a floppy they run fine under 6.22 DOS
Click to expand...
I haven't had any issues booting from floppy or reading floppies in DOS. Granted, I'm still running the original 16MHz i386 (need to find a clock doubled 486 drop in). I think that I've seen Jonas(?) mention issues with faster CPUs and the IBM BIOS in another thread. @harrison.frazier what BIOS are you running?
 
Hi there!
I am a retro PC collector and am building an IBM PC with an Inboard 386 built in.

I have been disappointed that I could not get piggyback memory, but when I found out about a great project to build a compatible board here, I decided to give it a try.

@harrison.frazier I would like to order a board, but I am also a moderated member and cannot send a DM. Is there any good way to do this?

System Specs:
(1)Inboard386/PC with added 387
(2)XT-IDE + CF-IDE + CF(SD)
(3)Deluxe Floppy (+Serial) <— I'm thinking of replacing it with QuadFlop.
(4)ATI Ultra Graphics U/V Mach8 (+Mouse)
(5)3Com 3C503-16TP Etherlink II/16TP

(1-1)HxC FDD Emu
(1-2)Teac FD-55BR(5.25")
(2-1)Teac FD-505(3.5"+5.25")
 

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