Specs-
MOBO: Intel D875PBZ board
CPU: Pentium 4 3.0GHz
RAM: 512MB DDR
GPU: Nvidia 6800 GT
Sound: Sound Blaster Audigy SB0090
Keyboard: IBM KB8923 Mechanical Mouse: Microsoft Intellimouse Optical
Display: Compaq S710 CRT 1024x768 @ 85Hz
I have the whole thing connected to the Belkin SoHo KVM with my Windows 11 PC (behind the cabinet on the left) and my NUC that I use as a home lab server (on top of the Blu-ray drive on the right)
A blog post on the build will be forthcoming but feel free to suggest games and software I should load onto or AMA about the system.
It was a really fun project
There were a few widescreen Carts but they were super expensive. The coolest was actually two 4:3 tubes in one bezel.