Yet more problems Bought a new power supply which happened to be a Coolermaster Real Power 700W and hooked it all up to my hardware. Everything is correctly plugged in and the set up worked fine on my old cheap 600W Power Supply Unit. All I get know is my motherboard's LED flashing a green light at me. There's about a 2 second interval between the flashes and my internal speaker doesn't give out any beeps. Nothing starts the LED just flashes away. The motherboard is an Asus P5W DH Deluxe. I can't find anything about this in my manual so you lot are my second to last resort. If this doesn't help then I'll be in phone bill hell trying to work it out with the tech team at Asus. Motherboard = Asus P5W DH Deluxe Power Supply = Coolermaster Real Power 700W What are the chances of it being a DOA power supply? And does anyone know how good OCUK are at returns if so. Cheers all Edit: Asus have no tech support over the phone, all done over their forums. You guys are my last hope before I have to RMA something.