Used to enable or disable the 68040 processor caches on Macintosh systems with 68040 processors. For compatibility reasons, processor caching may need to be turned off for some applications. Works on all 68040-based Mac OS computers, such as the Macintosh Quadra, Macintosh Centris, and Performa 400/500 models. If you don't want to restart after making a change, option-click the on/off button.
