I've been doing this somewhat casually over the past 13 years. Let's start with the original - An old Compaq Deskpro obtained from my school back in 2004. I don't remember the exact specs for it, think it had a 2.1GB hard drive (which I think I still have to this day). I no longer have this computer …

Based on the diagram, it is a universal card, and the PCI slots on the motherboard are 5v. I've ordered a Matrox G200 G2, which also has universal keying. Hopefully I'll have better luck with it. Otherwise, I'm going to have to find a card with 5v keying.

I'm trying to install a nVidia TNT2 M64 (16MB, PCI) into my retro writing/gaming PC, but the motherboard does not seem to be detecting it. A basic run-down on the specs of this writing computer are as follows: Motherboard: FIC VT-502 (i430VX chipset) -- Flashed to latest available BIOS that I could …