Sharky Extreme heeft een review van de 500 en 550MHz FC-PGA PIII's. Hier een stukje over de overklokbaarheid van de 550E:
Taking the 550E (5.5x100) to the 133 MHz FSB was the next order of business, and coincidentally equaled the same 733 MHz (5.5x133) speed of the Pentium III 733 Coppermine. This is the real litmus test, and again the CPU passed the testing with flying colors. Further overclock testing demonstrated that while 733 MHz was achievable, reaching higher speeds was a bit more difficult. Moving the FSB up to 137 MHz (754 MHz core) was also successful, and I decided to press my luck and make an attempt at 770 MHz (140x5.5). Initially, the 770 MHz core speed was successful and the game tests completed without a hitch. When unzipping a large archive file, the process would error out right at the end. There were no crashes or other Win 98 anomalies, just that small instability with extracting the large archive. This did not seem to be a CPU heat issue, and other than the Zip extraction test, performance was exemplary. I can only surmise that 770 MHz was just a little past the physical limitation of the CPU cache.