Ok I have all brand new parts, EVGA p55v motherboard, Intel core i5 750, bfg geforce 9800 gt, 500 GB segtate sata HD, Lite on dvd drive, and a Hyper N520 after market cpu cooler. I have built a few computers even more complex than this one in recent years this is for a friend but for some reason when i turn the computer on all the fans including the psu cpu and extra led fans i bought all turn on for 2 secs and then shut right off. If i leave it alone it will turn back on after about 5 seconds and then shut back off after 2 seconds and repeat the process over and over. I have the ram in the right ports according to the manuel installed the cpu and fan correctly took off all adhesive stickers and have all the front panel switches correctly in place. I am hoping that its just not enough juice but I am using a cooler master extreme power plus 500w psu. Any suggestions? Thanks