The original K7 Athlon processor arrived inmid-1999and put AMD on equal footing with rival Intel for the first time.
The first models were cartridge-based, designated Slot A, and proved to be quite overclockable.
Core voltage for that OC was 1.80, and I had the cache divisor set at 12.

Load temps only increased about six degrees Fahrenheit with the OC and voltage boost.
Years ago, Microsoft included a specialEaster eggprinted on the PCB of the Xbox One.