Thanks, I will order some VGA to DVI and VGA to display port adapters too. My old Packard Bell monitor may not last long, I don't think it's been powered up in over 20 years, I was really surprised to see that it actually still worked. There's some monitors for sale on Facebook Market in my area that I might try as a last resort. Unfortunately Goodwill doesn't sell crt's anymore because I'm sure they would have a million of them. I guess my other option is to try to find a PCI card Riser and update the BIOS to 4.5 I think or just get another 486 box and start from scratch with a pci video card. I also have a 1 GHz P3 system I'm working on and at 733 slot one system as well to play first person shooters the 486 machine was just to play Old point-and-click games. I used to play day of the tentacle on a 20 megahertz SX machine in some of the video animations were painful 🤣

Here is the full tower 1GHz P3 systen with Monster Voodoo II cards in SLI. I still haven't got the voodoo cards working in Windows 95 yet but they do work in Windows 95 on the 733MHz P3 slot one board. So many system bugs so little time!

Yeah that's a GeForce 3 ti 500 AGP card, the same one I bought back in the day when it first came out that cost me an arm and a leg, same thing with the voodoo II cards.

Turns out my old 720p TV with VGA input also works great but stretches the image.

Well if I can't lock down a scaler that can fix the vertical banding on the motherboard video, at least I know this card works and no vertical bands on new LCD monitors. I know it's not as fast as the Trident card but if I'm going to play Doom I'm going to do it on the 733MHz P3 slot one 😉

So I tried Doom on both the on board video and the diamond ISA and performance seems to be the same so I think I am all good now.