Hi folks, I'm new to the retro PC space and recently built myself a Pentium 4 build for win98, using an X600 XT. It runs everything into the early mid XP era admirably, but I want to see if I can squeeze just a bit more out of this GPU for those very last games that can run on 98, maybe an a modest OC of an extra 25-50 mhz?

I'm using the beta Catalyst 6.2 driver for 9x from PhilsComputerLab, but Rivatuner doesn't seem to detect the driver, I presume cause it's unofficial?, and of course ATI Tool doesn't run on 98.

Is there any alternatives for OCing on 98SE?
How would I go about doing this?