Welcome to Boardsort™ - Learn - Sell - Profit -

Learn to properly Sort, Sell, and Profit from your electronic scrap material.
It is currently Thu Apr 25, 2024 6:38 am


Post new topic Reply to topic  [ 4 posts ] 
Author Message
PostPosted: Fri May 29, 2020 1:52 pm 

Joined: Sat Mar 21, 2020 6:11 pm
Posts: 31
The top two are BGA, but capped with metal. Will these go pinless?
The bottom one go with the regular ICs?

Attachment:
File comment: 1a, 1b, 1c.
1.jpg
1.jpg [ 1.51 MiB | Viewed 2314 times ]


Have a board with a gold cap/leg IC. Should the IC be pulled, and how is it classed?

How about the board, with and without the IC?

Attachment:
File comment: 2.
2.jpg
2.jpg [ 2.12 MiB | Viewed 2314 times ]

Attachment:
File comment: 3.
3.jpg
3.jpg [ 1.32 MiB | Viewed 2314 times ]


Thanks!


Top
 Profile  
 
PostPosted: Fri May 29, 2020 2:10 pm 
Site Admin
User avatar

Joined: Tue Feb 03, 2015 6:57 pm
Posts: 9764
Location: Low DOS
Still ceramic. Still pinless. ;)


Absolutely remove the IC.
Board without it is high telco. With is gold cap chip board.
But
The IC is 8086

_________________
42 6F 61 72 64 73 6F 72 74 2E 63 6F 6D


Top
 Profile  
 
PostPosted: Fri May 29, 2020 3:42 pm 

Joined: Sat Mar 21, 2020 6:11 pm
Posts: 31
lostinlodos wrote:
The IC is 8086


Seems too short to be a CPU. Did some searching around and I think that IC is a video controller. https://www.ebay.com/itm/391741196930

I think this is the CPU:

Attachment:
File comment: cpu?
cpu.jpg
cpu.jpg [ 1.55 MiB | Viewed 2307 times ]


Top
 Profile  
 
PostPosted: Fri May 29, 2020 6:10 pm 
Site Admin
User avatar

Joined: Tue Feb 03, 2015 6:57 pm
Posts: 9764
Location: Low DOS
You are correct on both counts. The 8086 you have is actually a replacement as well. Not the original.
Back then the CPU didn’t include much of anything beyond the actual PU. The gold cap is one of the original controllers.
The socket next to it is for the 8087 Coprocessor.
The 8086 required quite a fe which by the early 80s were being soldered to boards.
It doesn’t change the class though. Any such Matching designed controller from the pre-286 era is going to be 8086 class. Plus earlier ones like the 4000 series; as do any other company’s matching package design. Like bell, Motorola etc.

_________________
42 6F 61 72 64 73 6F 72 74 2E 63 6F 6D


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 4 posts ] 

All times are UTC - 5 hours [ DST ]


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to: