DOS card from Power Macintosh 6100... POS or worth something?

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Hmm well I was just dismantling a 6100 i had sitting in the garage which has not only a cooked power supply but a rusted bad motherboard... and found a 66MHz Cyrix 486-powered DOS card in there. It's so clean and shiny it looks like it just rolled off the production line. Is that thing worth hanging on to, selling, or throwing out with the rest of the crap that was in the 6100?

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Kurenai's picture
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Joined: May 28 2004
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Hold onto it.

You never know when you might get another system that could use it, or when you could sell it on ebay or someone on here might want it.

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Joined: Sep 16 2004
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just curious how does it con

just curious
how does it connect to the logic board?
i have a performa that uses a board that connects with the processor connector and has both the pc processor and mac processor on the board
if its this type i may be interested

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DOS card

From what I can see it fits a NuBus slot... but I can't say cause I don't fiddle with that kind of old tech very often. Being out of a 6100 it only has the PC components, the PowerPC processor is on the logic board...

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PDS slot

The 6100/DOS card fits into the PDS slot. It has three basic pieces: the PDS card with right-angle port, the actual 486 card, which plugs into the right-angle port, and a metal bracket that covers the whole thing and helps secure it to the rear of the 6100 case.

The slot connecting the two cards isn't NuBus--which is a shame, because if it were, these old DOS cards would be a cheap and plentiful source of the otherwise elusive 6100 right-angle PDS-NuBus adapter, allowing the use of NuBus cards in 6100s.

Interestingly, the slot connecting the two cards is a very narrow one that looks exactly like the slot just in front of the leftmost NuBus slot on the two motherboards (Quadra 700 and 800) pictured here:

http://homepage.mac.com/mruben/macstuff/PhotoAlbum39.html

So perhaps one could use the DOS card in those machines, without the right-angle adapter, if one figured out a way to extend the video port to the rear of the machine.

Matt

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What model Performa is that?

What model Performa is that?

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i believe its a 640cd dos com

i believe its a 640cd dos compatible

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Re: What model Performa is that?

DrBunsen wrote:

What model Performa is that?

6100. The card will also work in a 6110, 6115, and 6120.

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Jon
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The black slot on a Q700/Q800

The black slot on a Q700/Q800 is the '040 PDS slot. It's where the Power Macintosh Upgrade Card goes. I doubt if the DOS car would work in there, unless the PDS on a 6100 is a variant of an '040 PDS (unlikely).

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Re: The black slot on a Q700/Q800

Jon wrote:

The black slot on a Q700/Q800 is the '040 PDS slot. It's where the Power Macintosh Upgrade Card goes. I doubt if the DOS car would work in there, unless the PDS on a 6100 is a variant of an '040 PDS (unlikely).

It works, and I've done it myself. The actual DOS card connector is the same as on the Q700 board. It's the right-angle card that converts the card to a 6100-type PDS.

Obsoive: here

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It looks like I was exactly w

It looks like I was exactly wrong. ;D I assumed that the 6100 would have a 601 PDS. I guess it does, but Apple futz a bit. We all know the saying about assume... Anyway, I guess Apple was designing the card for Quadra-calss machines, then decided to slap it into the new low-end PPC? That'd be a decent scenario for the 601 PDS -> '040 PDS right angle convertor.

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eeun's picture
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I'm thinkin' you're right abo

I'm thinkin' you're right about the DOS card being around for a bit. There was a Quadra 610 DOS (again with some right-angle bracket mojo), and info I've googled says -that- card could work in a Q700 also, but I've found no direct reference to say the 6100 and 610 DOS use the same card. I'll assume they are Wink

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I can't remember his username

I can't remember his username, but there was someone from the old forums who had a site all about using these cards in various machines, as well as instuctions for upgrading the actual 486 processor to other x86 processors. I recall him installing one of these cards in a hacked Quadra 800. He also made mention and even had a picture of the video port extension card so that you didn't have to route your monitor's cable inside the case.

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jt
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jruschme?

http://web.archive.org/web/20010822185001/http://homepage.mac.com/jruschme/Mac286.html

Dunno about the later cards, but his Mac286 page is top notch!

jt Wink

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I'd hang onto the card, I kno

I'd hang onto the card, I know a bunch of people with 6100s, so chances are you can resell the card later for a lot of money.

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Another site

Here's another site with good info on the DOS card (actually, the rest of the site is really useful, too!)

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