Originally posted by Frank Carver:
If top speed is your goal, why are you limiting yourself to a slow, old 1.7Ghz CPU ? Upgrading that to 2GHz+ will make much more difference than theoretical RAM timings. I doubt that anyone using the machine could tell the difference between "133" and "400" RAM, but another 50% CPU-speed is quite noticeable.
Also, you don't tell us anything else about the rest of the components in your machine, or indeed the kind of applications you want to run.