So you are saying that the psu fan doesn't come on? Did you turn on the psu switch? Is there a reset button for the psu?
You either have a DOA PSU or a DOA motherboard. If you want to test the power supply then you can remove the main motherboard power connestor and with the clip facing up put a jumper into the holes where green and black wires enter the connector plug, leave everything plugged in and if the psu is good then the fans should work. If you get nothing then the psu is DOA.http://dodji.seketeli.com/downloads/shuttle-psu-paper-clip-test.pdf