SpeedFan isn't overly complicated, but if you no longer appreciate the details it offers, I firmly recommend you study it before carrying on. If you do know the difference between your Vcore and Vsb, it presents some useful system details. SpeedFan's tabbed interface actually hard to find their way, but why don't we face it: most users won't be capable to produce head or butt of the data this tool provides. The program's system-tray icon tells you the temp of your PC's hard get, and you can receive information on supporter and voltage speeds.