Does anyone recognize this motherboard - Page 1
Forum section: electronics / general

author: fable
author_rank: Regular Contributor
timestamp: November 21, 2021, 04:12:08 pm
content: Hi everyone, i found this 486 PC motherboard but couldn't find any info or user manual for it.

author: PKTKS
author_rank: Super Contributor
timestamp: November 21, 2021, 04:47:51 pm
content: it reminds me one of those china made "TMF " mobos.But they usually have a tiny small logo I could not see...Otherwise the finishing is identical.TMF brand vanished by late 90s..Paul

author: amyk
author_rank: Super Contributor
timestamp: November 22, 2021, 12:27:53 am
content: That doesn't look like a standard PC motherboard to me, especially with those connectors. It has a 486 on it but could be an embedded system with a very different architecture.

author: SiliconWizard
author_rank: Super Contributor
timestamp: November 22, 2021, 01:22:11 am
content: The only hint I see is on the connector on the right side. ("CSSIPC-P4A ...")One "similar" item I could find was this: "CSSIPC-P4P", a PC104 board:https://aliexpress.com/item/4001271479557.htmlBut your board doesn't look like a PC104 one. Probably another kind of industrial computer module. Found a couple other "CSSIPC" boards.The only reference of manufacturer I could find with similar named boards are from a manufacturer apparently called "Eberle". Like this item:https://www.ebay.de/itm/280578093276I suspect this is this company:https://www.eberle.de/, and those PC boards have long been obsolete with very little info to be found about them, so I can't be sure 100%.The fact there are Siemens chips on the board would tend to lead us to this direction of a german company too.There seems to be a sticker on the IC at the top of the first picture, which is hard to read. Maybe there's some info on it that could also help.

author: coromonadalix
author_rank: Super Contributor
timestamp: November 25, 2021, 02:59:13 am
content: Maybe read the socketed memory / eeprom on the board could show some infos ?? the best one would be to read the bios chip trying to find some company branding logo or infos embedded in it ??

author: fable
author_rank: Regular Contributor
timestamp: November 26, 2021, 02:12:38 am
content: Tnx all for replying... I got this Mobo with some homemade cards with FPGA on it.The MB is turning on but no picture.i copied content of HDD and found some DOS program witch i managed to run under dos-box but program expect card to be plugged. It's nothing important im just curious and will play with it in the free time

author: Rasz
author_rank: Super Contributor
timestamp: December 04, 2021, 01:03:03 pm
content: CSSIPC-P4A leads to CSSIPC-FCMhttps://www.electronicyachtrepair.com/en/producto/modulo-de-disco-duro-y-disquete-3-5-fdb-1-fdu-cssipc-fcm-instalado-en-mcu-de-sistemas-mcs-5-2/leads tohttps://www.mtu-solutions.com/au/en/automation-solutions.html

author: Storm
author_rank: Contributor
timestamp: August 02, 2022, 11:18:03 am
content: This is an early version of the AT-PC Board used in Wandel&Goltermann SNA-20/23/30/33 Spectrum Analyzers of the later F,G and H-Series. I currently restore a H-Series unit with a later Version of your board and would like to have the mainboard documentation as well, since my unit does not store HW-configuration to CMOS anymore, althought a new 3.6V battery is connected to it...