when i click in system in performance and maintenance the processor speed changes - why is this

[mkjuk]

it ranges from 512mhz to 1.67 ghz? is it normal for this to happen on startup?

[Catso]

Possibly because some processors change speed in order to save power? They slow down when they've nothing to do.

This is just guess, though!

[fo3nix]

I think catso may be right. Also, I think Windows sometimes confuses itself from time to time. My current processors is an AMD64 3000+ that should be running at 2GHz. Usually it says this, but sometimes windoes reports it as 1GHz, as well as 2GHz in a different application.