More on Overclocking and Benchmarking

The first overclocked setting I tried was 666MHz using the 133MHz bus. Everything was fine here too. The GeForce DDR and my other devices using the PCI bus did not act up on me either. This was to be expected though, since I have had these same components running wile using the 148MHz bus when I had the Pentium III 450. 666MHz for the Coppermine was extremely fast and already blown past my P3 450 in terms of performance. Next, I went for the speed that everyone is talking about, 700MHz. I set the FSB to 140MHz.

Ziff Davis' CPUMark 99 score= 68

Again, everthing came up fine and a couple loops in Unreal, some testing in Winbench 99, and looping Final Reality past all while using the default voltage of 1.6V. I then went for the next speed on my list, 750MHz. Everything seemed fine at first, but 5 minutes later the system locked up hard. I tried voltage increases from 1.6V to 1.8V and they did nothing to increase stability at 750MHz.

The next logical course was to back down bit by bit in between 700MHz and 750MHz to see what the maximum speed of the CPU could be. I found that 715MHz was the most I could get out of my 500E. This is extremely fast. I tested the CPU in a 24 hour period to make sure 715MHz was 100% stable and definitely it is.

 

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