Author Topic: SNES Superfx overclocking  (Read 3118 times)

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Offline Drakon

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SNES Superfx overclocking
« on: April 10, 2013, 03:28 PM »
Starfox 2 with the slowdown decreased and running at 53.3 mhz:

https://www.youtube.com/watch?v=U4pm8WCtGX0&list=UU9G7zkSqL0nMI5eNk0uN65A&index=1

I had to reprogram the game rom a little to accomplish this.  I disabled a superfx hardware mode that was halving the possible overclock speed.  I also enabled another superfx hardware mode that greatly decreases slowdown, and enabled yet another hardware mode that allowed me to overclock the game past 48 mhz.  This can be built out of any gsu 1 / gsu 2 donor cartridge but not the mario chip.  I've got other games running at insane speeds I'll upload new videos once I have them more tweaked.

I find the most challenging superfx game to overclock is doom, I'm really confused as to why it freezes at any decent speed.