VOGONS


First post, by BitWrangler

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Hi folks,

Been turning up some parts lately that lead me to ideas about putting together a super XT... AT BX board, tualatin, slotket, done! ... just kidding... no an XT class system with all the goodies I can cram into it.

What I've found for it so far...

ATi Mach8 Graphics Ultra, with the 8514 emulation mode.
Seagate ST-05 8 bit SCSI card.
NEC V20
SB Pro

What I'm fairly sure I've got somewhere...

Clone 5160 motherboard... very similar to the eye to a late 5160, high density RAM i think, very socketed.
101 key XT/AT switchable keyboard
floppy card.
serial card
mono card with parallel
300MB SCSI drive
Floppy drives... everything but 2.88
8 bit NIC
SCSI CDROM... which I had a hate on, not sure if it was just because it wouldn't read linux CDs or boot from, it sorta worked, just not what I wanted it to work for last time I played with it, might be fine for a DOS system.

What I saw once upon a time, but so long ago I don't know if I kept it, or was just something I was looking at I don't own...

Multi function RAM floppy serial card.
High density floppy card.
EMS card
Microsoft Bus Mouse.

Stuff I might have to build or buy

https://github.com/reesclissold/pc-sprint
Mouse protocol converter
Memory expansion
ESP8266 wifi serial modem

You'll notice some duplication there, and probably too many cards, I'll be seeing what can be found, what plays nice, where features can be doubled up or rationalised. If I find the bus mouse for example, the ATi has a port for it, and I'll only want one serial port. Want a comms port as well as a tether for the mouses leash. So mainly expecting to run off the spinning rust. Might have bigger SCSI somewhere, but 300MB seems acres for an XT, most progs worth running you can get half a dozen to a floppy. Also think that SCSI will be plenty fast for it. Another thing with the SCSI I think I saw a 16 bit card that had settable IRQ, maybe for 8 bit mode, so it might get that one, because it also had floppy. Case... got a clone XT case that looks like a clone XT case, 5160 style from the front but actually has a flip up hinged lid... at least maybe, might be getting my cAsEs confused... Then also I say I think it's HD RAM on the board, but that designation has lodged in my brain without remembering whether that meant 384kB 512kB or a whole 640kB on the board... so relative essentialness of RAM boards may vary. I am kind of hoping to go dual monitor, VGA and mono. Because I'm a monster, I pulled some of the cards out of a 5155 years back, and tossed them in the same boxes I expect to find the other 8 bit stuff, so it might be kind of a dual build, making sure I'm not robbing the 5155 of bits that belong to it, and doing a semi-rebuild of that.

What's going on it, a classic DOS or a useful DOS? Wellll I'd prefer useful I think, I like 6.22, wondering if I should take a risk with PC DOS 2000 or something on this one, or whether that would break windows 3 or other things. Games... some of those... games are fun... mind always goes blank.. shovel load all the games. CP/M... maybe not "on" it, that might be bootable floppies.. not sure yet.

So this is what's simmering on the back burner so far, probably going to be a later in the year build rather than very soon...

2017: Basement full of ancient PC stuff, starting to go through it. 2021: Still starting, heh, many setbacks. So what's this BitWrangler guy's deal ??? >>> Taming the pile, specs to target?

Reply 1 of 10, by Caluser2000

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Something like Anonymous Cowards one? https://sites.google.com/site/misterzeropage/

There's a glitch in the matrix.
A founding member of the 286 appreciation society.
Apparently 32-bit is dead and nobody likes P4s.
Of course, as always, I'm open to correction...😉

Reply 2 of 10, by BitWrangler

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Yah, that's great, aiming for something pretty similar. Good tips about the HD floppy... maybe that will work with that 16 bit SCSI/Floppy that I think has an 8 bit mode, but not sure it's BIOS is HD floppy bios too or only HDD BIOS.

2017: Basement full of ancient PC stuff, starting to go through it. 2021: Still starting, heh, many setbacks. So what's this BitWrangler guy's deal ??? >>> Taming the pile, specs to target?

Reply 3 of 10, by Anonymous Coward

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What is an ST-05? I've never heard of that one before. ST-05X is an XTA hdd controller.
Whatever you have, I hope it's better than an ST-01 or ST-02. Those are a pain in the arse.

I heard some of the Future Domain 16-bit SCSI controllers can work in 8-bit mode, but I never confirmed this.

"Will the highways on the internets become more few?" -Gee Dubya
V'Ger XT|Upgraded AT|Ultimate 386|Super VL/EISA 486|SMP VL/EISA Pentium

Reply 4 of 10, by BitWrangler

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Yep, it's not an 05, but a lowly 02, guess I got numbers scrambled when trying to remember several part numbers at once.

Recent finds... 300MB internal SCSI HDD, which approaches infinitely large as far as an XT is concerned when software came 360k at a time. External SCSI CD ROM drives, 2 different, they looked like cased internals so one of them might get put inside, or I might pile one on top, see what the aesthetics look like. And a bus mouse turned up, Logitech, but I'm reading here https://www.oldmouse.com/miscellanea/mousebus.shtml that they were cross compatible, though elsewhere saw that you had to use the driver according to the mouse in use, and need an ATI util to enable port on Mach 8.

Still kind of back burnered on low simmer, playing at PIII era at the moment.

2017: Basement full of ancient PC stuff, starting to go through it. 2021: Still starting, heh, many setbacks. So what's this BitWrangler guy's deal ??? >>> Taming the pile, specs to target?

Reply 5 of 10, by Anonymous Coward

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Seagate st01/02 doesn’t have an ASPI driver, so I don’t think it’s possible to use a scsi CD-ROM drive with your card.

"Will the highways on the internets become more few?" -Gee Dubya
V'Ger XT|Upgraded AT|Ultimate 386|Super VL/EISA 486|SMP VL/EISA Pentium

Reply 6 of 10, by BitWrangler

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Really? Huh, I thought they had a non-bootable card with the same chip sold specifically as a CD-ROM card, with RCA jack audio breakouts.

2017: Basement full of ancient PC stuff, starting to go through it. 2021: Still starting, heh, many setbacks. So what's this BitWrangler guy's deal ??? >>> Taming the pile, specs to target?

Reply 7 of 10, by Anonymous Coward

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That could be. Do you have a photo of that kit? I looked for quite a few years and never found the driver.

"Will the highways on the internets become more few?" -Gee Dubya
V'Ger XT|Upgraded AT|Ultimate 386|Super VL/EISA 486|SMP VL/EISA Pentium

Reply 8 of 10, by BitWrangler

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It was a card I had wayyy back in the day and don't have any more, this is a pic I found of one that most closely matches the pic in my head, which isn't very clear...

IMG_0256.jpg

Which we notice is a future domain not an ST, though I thought adaptec might have been a possibility too.

2017: Basement full of ancient PC stuff, starting to go through it. 2021: Still starting, heh, many setbacks. So what's this BitWrangler guy's deal ??? >>> Taming the pile, specs to target?

Reply 9 of 10, by Anonymous Coward

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Future Domain has ASPI drivers, so CD-ROM drive will work.
The Seagate cards apparently licensed the Future Domain chips for their ST-01/02, but there was a customisation made to the silicon swapping two bits around which made them incompatible with Future Domain software. I heard talk it might be possible to patch the drivers, but nothing ever came of it.

"Will the highways on the internets become more few?" -Gee Dubya
V'Ger XT|Upgraded AT|Ultimate 386|Super VL/EISA 486|SMP VL/EISA Pentium

Reply 10 of 10, by BitWrangler

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Riiight, that's maybe what made me think "same chip" some linux driver discussion in the 90s when I was thinking of using it in a linux box. Funnily enough what killed that adventure was not the crappiness of the card, but the discovery that the external CD ROM drive I picked up for what should have struck me as "suspiciously" cheap, was actually a Mitsumi external and not a SCSI.

2017: Basement full of ancient PC stuff, starting to go through it. 2021: Still starting, heh, many setbacks. So what's this BitWrangler guy's deal ??? >>> Taming the pile, specs to target?