[rescue] EISA dual pentium SBC - ESP3520

Michael Dombrowski ab1244 at yahoo.com
Tue Jun 3 21:03:17 EDT 2025


I wouldn't normally ask x86-ish questions of this group, but this seems more interesting than the usual PC. I have a Diversified Technologies ESP3520 - a dual socket 5 SBC that slots into an EISA backplane. There is minimal info on the web about these, with some help I was able to find a copy of the manual and procure a backplane from eBay. 

These were used in Tektronix PDR 100s - a pretty wild appearing video recorder from the mid 90s. I think for things like instant replay of live sports. It looks like the video-related cards of the PDR had both EISA and dedicated video bus connections and it used FC connections to a disk array.

The main problem that I am facing is a missing EISA configuration file. I hacked a different config file enough to be about to run the EISA config utility, but I'm still looking for the proper file directly, or a copy of the Tek software "Profile System" which should have a copy of the config file. 

Please let me know if you have any ideas or leads

Mike






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