Okay so I noticed that my Quadra has a 25mhz CPU, and a 50mhz oscillator on the motherboard. So I figure the multiplier must be 0.5x. So what I thought of was taking a 40mhz 68040, and changing out the oscillator to an 80mhz, or maybe 100mhz, thus getting me either 40mhz or 50mhz.

Should work, right? I'm sure someone has tried this before.