Intel 80486 OverDrive processors were a category of various
Intel 80486s that were produced with the designated purpose of being used to
upgrade personal computers.
An Intel DX4-100MHz OverDrivewith built-in heatsink & voltage regulator.OverDrives typically possessed qualities different from 'standard' 486s of the same speed steppings. These included built-in
voltage regulators, different
pin-outs, write-back cache instead of write-through cache , built-in
heatsinks, and
fanless operation - features that made them more able to work where an ordinary edition of a particular model would not. As well as the voltage regulation modulator.