Has anyone gotten this to work on a Pentium 1/2 era Aptiva? My model is 2138 for reference

The problem is likely the integrated gpu. Only the V1 struggles and only when installed next to V3. V1 works fine until I install the V3 card. When I run a game requiring the V1 it boots up and starts like normal, however when I exit the game the computer becomes unusable. Not sure what happens honestly, the voodoo 3 stops outputting video alltogether and when I checked the output of the iGPU it was just black. Computer doesn't respond to keystrokes. There's no setting in BIOS to disable the integrated gpu and I have tried to disable the adapter in device manager in W98SE but the problem persists. I stubbornly want an aptiva for my pentium 2 build because of the design and how it matches my beloved eizo monitor.

Is this model a lost cause or might there be anything I can do? Did anyone try this setup in their Aptiva or could you attempt it?