So do you know that joy you feel when you have all new kit sitting in front of you and with excitement you put it all together and nothing happens? Yeah, that's me. So here it is, I think my Motherboard is defective and before I RMA it I wanted to cross off all the steps I could to single it out. I have new everything: new 2tb WD HD, Samsung 830 SSD, EVGA 680gtx, Asus Maximus V Gene, i5 3570k, Silverstone 650W Gold PSU, , 2 new rads, new WB blocks. . . etc etc etc. As said, all new kit. Customed sleeved the PSU, checked all connections against a PSU tester every step of the way and everything checks out. Put blocks on CPU/GPU, attached the CPU to the mobo, installed all the hardware into the case, put in new hoses, filled the rads pushed the start button and nothing. Nothing happens at all. Took the PSU tester back out, checked all connections one by one, everything is green lighted with the tester. Re connected all wiring, pushed the start button on the mobo: nothing. Took the battery out of the CMOS, put in a new battery. Nothing. So, I think the Mobo is dead, but what else can I check before I start the RMA process with my shop? I'm certain the PSU is good as I've triple checked all connections against a tester. But I couldn't check anything else since there was no power coming into the system. I feel dumb as I don't know what else I can look for, but logic for me points to the MB as there is no power coming in to anything. I unplugged all the cables to the mobo and left the peripherals plugged in (pump, lighting, CD drive, fans, Mcubed and so on) and all peripherals fired up once they got power. So I know there is nothing that would be making a short here. What am I missing? What steps should I take to troubleshoot now?