I had a bad RAM chip, because of which I had to run my now-growing-old AMD 1.4 with "pc100" selected in the BIOS, when I finally replaced it, which allowed me to go back to the "pc133" setting I saw times on my CPU test (look in Freestuff) improve about 2%, wow, are we impressed? I also went from 768 to 1024 Mb of RAM, which might have been part of the change. Going from Win 98 to Win 2K improved things about 10%, incidently. I'd guess XP is about as fast as 2K, though, but it is worth changing if your on 98 or ME.