No reaction what so ever when you try hitting the power button on the case? Not even the PSU fan?
Double checked that the connection for the power button is properly seated on the motherboard?
Try deconnecting everything you don't need for it to boot if so, and see what happens. Also double check all the wiring - possibly redo it as well.
Double checked that the connection for the power button is properly seated on the motherboard?
Try deconnecting everything you don't need for it to boot if so, and see what happens. Also double check all the wiring - possibly redo it as well.