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View Full Version : Hi, glad I found this place. Can anyone tell me what kind of expansion I have here?



Gribnitz
November 4th, 2013, 02:40 PM
It came out of a 5150 and I have never seen one of these. It looks like an upgrade board to a 386 processor? It is made by Intel, but I don't see a name for the board anywhere. Here are a few pictures.

http://i1275.photobucket.com/albums/y456/Gribnitz1/100_3866_zpseb8869ec.jpg (http://s1275.photobucket.com/user/Gribnitz1/media/100_3866_zpseb8869ec.jpg.html)


http://i1275.photobucket.com/albums/y456/Gribnitz1/100_3865_zpsa5e9b13c.jpg (http://s1275.photobucket.com/user/Gribnitz1/media/100_3865_zpsa5e9b13c.jpg.html)

http://i1275.photobucket.com/albums/y456/Gribnitz1/100_3864_zpse5b6bc92.jpg (http://s1275.photobucket.com/user/Gribnitz1/media/100_3864_zpse5b6bc92.jpg.html)

I have tons more to share from my vintage collection...mostly IBM and Tandy, but I have Commodore and Amiga as well.

Chromedome45
November 4th, 2013, 03:34 PM
Intel Inboard. An accelerator for the IBM PC or XT and close compatibles. Basically the blue connector along the top edge would lead to a 40 Pin connector that would terminate into a 40 pin DIP type socket that plugged into the 8088 cpu socket which you removed CPU prior to insertion. Hopefully not to confusing. And hopefully still have that cable. So basically turned your 5150 into a 386 based machine. Was a nice performace booster. :D Oh and BTW Where are you located?

Gribnitz
November 4th, 2013, 04:13 PM
Intel Inboard. An accelerator for the IBM PC or XT and close compatibles. Basically the blue connector along the top edge would lead to a 40 Pin connector that would terminate into a 40 pin DIP type socket that plugged into the 8088 cpu socket which you removed CPU prior to insertion. Hopefully not to confusing. And hopefully still have that cable. So basically turned your 5150 into a 386 based machine. Was a nice performace booster. :D Oh and BTW Where are you located?


Very cool! Thanks! I guess it is kind of useless now, considering if I want to play a 386, I would just boot up my 386, but still neat and the first one I have seen. :D

Gribnitz
November 4th, 2013, 04:39 PM
Intel Inboard. An accelerator for the IBM PC or XT and close compatibles. Basically the blue connector along the top edge would lead to a 40 Pin connector that would terminate into a 40 pin DIP type socket that plugged into the 8088 cpu socket which you removed CPU prior to insertion. Hopefully not to confusing. And hopefully still have that cable. So basically turned your 5150 into a 386 based machine. Was a nice performace booster. :D Oh and BTW Where are you located?

Neat, cool and odd. First one I have seen and yes, the cable was still in the broken machine. I just went and pulled it out so it doesn't get lost in the mess. I am in Missouri.

Cimonvg
November 4th, 2013, 10:59 PM
hello
yes, if you search "intel inboard 386 manual.pdf" you will find the manual for this card..
I think you have the not so common version. I have been looking for some time at ebay, and it seems the version with RAM made of rows of 9 chips (8 bit and parity bit) to be the more common (?)
If i remeber correct there were newer and older versions of the Inboard and the first had some bugs ?? (please correct me if i remeber wrongly)
Wondering if the to versions perform the same - or if one is faster then the other ? :)
I also have a card like yours but it is broken :(
/cimonvg

Gribnitz
November 5th, 2013, 05:37 PM
I haven't tested the card. It was left in an almost empty 5150. I think only the video card and this card was still installed. It does have the cable, but I am not sure I want to risk putting it in my working 5150. I may end up selling this to fund my next addiction....Apple IIgs. Is this card worth anything?