I think the dx4/100 had a different vcore than the dx2/66. Check your mb, and if it will take the dx4/100, then go for it. I seem to recall the dx4/100 being a smaller technology and thus ran ...

Stop! Don’t touch that dial, er, CPU. An Oak Park parent recently attempted to upgrade a 486SX 25 MHz microprocessor to a 486DX2 66 MHz to appease a game-hungry teen. Subsequently, the 2-year ...