Help identifying boards - Page 1
Forum section: electronics / general

author: She scraps
author_rank: Newbie
timestamp: August 29, 2023, 06:44:39 pm
content: Can you tell me what I have here and how to best identify what I have. The FCC ID is EJM5MYINBRDAT386. Thanks, Carnette.

author: edpalmer42
author_rank: Super Contributor
timestamp: August 29, 2023, 07:16:20 pm
content: It looks like an 80386 single-board computer that plugs into an ISA motherboard. The empty sockets are for memory. If you remove that board with all the empty sockets, you might find more memory chips that are soldered in. One puzzling thing is that there are no connectors. There are usually video and keyboard connectors on the mounting bracket. Maybe you need seperate video and I/O cards for that.This type of board was typically used in industrial applications. Instead of the main processor (the black socket) being on the motherboard, it's on this card and the motherboard is just a passive interconnect between the cards. This would allow a quick repair by swapping out a defective board rather than changing the motherboard. This would minimize downtime.The manufacturer is obviously Intel. To find out more, look up that FCCID number. I can't quite make it out in the photo.Ed

author: She scraps
author_rank: Newbie
timestamp: August 29, 2023, 07:20:26 pm
content: Thank you, where should I look up that number? When I googled it, it didn’t bring up anything specific, but it did lead me to this forum. The FCC ID is EJM5MYINBRDAT386.

author: MLXXXp
author_rank: Frequent Contributor
timestamp: August 29, 2023, 07:37:59 pm
content: A bit of info here, but not much:https://fcc.report/FCC-ID/EJM5MYINBRD386PC/Also here, if you enter EJM for the Grantee Code and 5MYINBRDAT386 for the Product Code:https://www.fcc.gov/oet/ea/fccid

author: edpalmer42
author_rank: Super Contributor
timestamp: August 29, 2023, 07:45:42 pm
content: Given the board's age (1988), there may not be anything available online. Google takes you to the FCC website which is oddly devoid of useful info - usually it's much better, but the board's age may be working against you. If you can't find anything on this specific board, look for other Intel 80386 single-board computers.Why are you looking for info on this board? Repair, or just for fun?The board can't function as it is because there's no processor - likely ebay will have something but compatibility could be an issue. The 80387 socket is optional. I don't know what the Cable socket is for. To get this running you'd need a 16-bit ISA passive backplane, a video card - VGA at best, maybe less, a compatible monitor, a multi-I/O card that has a keyboard jack (I can't remember if that was typical or unusual), an AT-style power supply, a lot of time and patience, and a huge boatload of luck!Ed

author: She scraps
author_rank: Newbie
timestamp: August 29, 2023, 07:50:08 pm
content: I received two truck loads of vintage computer stuff and I have slowly been selling them. I just couldn’t find specific info on this one. Thanks for the help.

author: MLXXXp
author_rank: Frequent Contributor
timestamp: August 29, 2023, 07:56:24 pm
content: Found it. It's an Intel InBoard 386/AT.https://www.cpushack.com/2019/08/14/how-to-386-your-at-intel-inboard-386-at/https://en.wikipedia.org/wiki/Intel_Inboard_386

author: edpalmer42
author_rank: Super Contributor
timestamp: August 29, 2023, 10:25:07 pm
content: Quote from: MLXXXp on August 29, 2023, 07:56:24 pmGood find! Well done!Ed