Dell C640 "i" button

Anyone know what the little "i" button at the top of the keyboard on a Dell C640 does? I've been searching but come up empty.

Cheers...

CB

That's the "direct access" button. You need to download the hotkey software. It's really not necessary, so you can live without it.

It's for selecting Diagnostic Boot.

Found the software at the Dell site. Use it now to jump to things I program it for.

Thanks for the replies.