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bartman2381
 Post subject: What do I have? #3
PostPosted: Sat Apr 25, 2020 1:54 pm 

Joined: Thu Apr 23, 2020 1:02 am
Posts: 16
Please identify


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20200424_215311.jpg
20200424_215311.jpg [ 791.45 KiB | Viewed 2008 times ]
File comment: I think this is a motherboard, the original slot cpu. Sure has alot of gold pins.
20200424_214951.jpg
20200424_214951.jpg [ 981.76 KiB | Viewed 2008 times ]
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20200424_214821.jpg [ 1.42 MiB | Viewed 2008 times ]
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20200424_214730.jpg
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20200424_214721.jpg
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lostinlodos
 Post subject: Re: What do I have? #3
PostPosted: Sat Apr 25, 2020 2:16 pm 
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Joined: Tue Feb 03, 2015 6:57 pm
Posts: 9773
Location: Low DOS
Low grade
Backplane
Left/top gold clean finger card Right/bottom low telco
Clean gold finger cards
Clean gold finger card
Clean gold finger card
Clean gold finger card
Gold finger card (clean with bracket)

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bartman2381
 Post subject: Re: What do I have? #3
PostPosted: Sat Apr 25, 2020 2:26 pm 

Joined: Thu Apr 23, 2020 1:02 am
Posts: 16
How did you classify the 2nd one as a backplane. Its from the 80s and a giant slot cpu went into the long slot. Wouldn't this be classified as a motherboard then?
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lostinlodos
 Post subject: Re: What do I have? #3
PostPosted: Sat Apr 25, 2020 2:37 pm 
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Location: Low DOS
It’s missing the majority of the requirements for a motherboard, such as controllers and extended I/o. Lack of ram or ram sockets
Here the majority of the actual motherboard is on a risers.
The cpu wasn’t actually a slot processor but a direct bus interface cpu riser.

On the other hand it’s a lot of plated gold pin connector weight. Especially with the DBI socket. Boosting it out of peripheral regardless of the lack of IC population.

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bartman2381
 Post subject: Re: What do I have? #3
PostPosted: Sat Apr 25, 2020 2:41 pm 

Joined: Thu Apr 23, 2020 1:02 am
Posts: 16
Oh, I see. Thanks for the tidbit and your help.
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