[manasecret]

Sweet deal! The easiest way to find out the motherboard info without opening up the case is to get into the BIOS. Dell may try to lock you out by making it non-obvious, but it should still be possible. Try pressing any number of buttons on boot up -- Delete and any one of the F buttons are usually the ones. If all else fails... mash the keyboard at start up until it gets to the BIOS!