TJBChris | Tandy 2500 SX/25 - Adding a 80387SX math co-processor @TJBChris | Uploaded May 2023 | Updated October 2024, 6 hours ago.
Let's add a 80387SX-25 math coprocessor to my Tandy 2500 SX/25! I'll install the processor, verify the computer sees it with Microsoft Diagnostics (MSD), and give it a quick test with CheckIt.

Music (in order):
None. Just my melodic voice.

Chapters:

Intro / Background (0:00)
Installing the 80387 and Smoke Test (1:23)
Re-assembly / Checking It With CheckIt (3:06)
Outro (4:24)

I do these videos unscripted, so I apologize if the in-the-moment descriptions of things are a bit scattered. If you have any questions/comments about this video, you can find me in any of these fine locations:

The Tandy Discord Server
The CoCo Nation Discord Server
The TRS-80 Color Computer (CoCo) group on Facebook
The CoCo Crew Podcast group on Facebook
On the Vintage Computer Forums (vcfed.org)
The TRS-80 Models I-4/4P Group on Facebook
Tandy / Radio Shack Model II /12 / 16 / 16B / 6000 Owner's Group on Facebook
Twitter (I'm TJBChris there...)
The Level29 BBS (I'm TJBChris there, too.)
Particles BBS (Guess who I am here? Yeah, TJBChris.)

Thanks for watching!