Before you blow it up by shorting the fuse have you tried a different PSU. Like i said above i had the exact same issue with PSU's that were overspecced (750W) but they could not take the initial voltage spike of the cube resulting in it giving a click and dieing. A 600W corsair PSU booted it fine first time.

Shorting the fuse is a very bad idea and means if anything goes wrong you will end up with an expensive paper weight.