i tried it with and without anything in and it didnt wok, i just went through all the leads reatached them and it still didnt work, then for a last gasp i just unplugged one little lead for the front ones and it worked altough last few weeks when i start it up it has had a lack of power to the cpu fan and as i start up it says press f1 to continue, after 5 minutes though the fans picks up speed, and also when i plug stuff into the front usb it comes up usb using too much power, just unplugging the front usb ports from the motherboard though seems to have done the trick to all them problems, first time i havnt had lack of cpu fan power for ages.
........if we all did that there wouldnt be a forum, some people