First build so bear with me... Build with a: Gigabyte GA-P67-UD3 Intel i5 2500K (with stock cooler) Corsair TX750W PSU 2x2GB Corsair 1600 MHz RAM Gigabyte GTX 460 HD DVD Drive I built everything as it should be. Power button and the front case LED blinks once, and the PSU fan moves slightly (maybe half of a rotation). I figure something may be connected incorrectly or the mobo may be shorting, so I remove it from my case and place it on a piece of cardboard. Remove everything except one stick of RAM in the second slot. Connect 8 pin and 24 pin power connectors. CPU in, heatsink on. Connect the power button cable from the case, power on... Same problem, however now the PSU fan spins for a good second, as well as the CPU fan. A green light flashes on the motherboard for about a second, then turns off. This sequence does not loop. It's worth noting that I had some struggles with the stock CPU cooler, after a while it did fit correctly however the thermal compound may have been smeared too much? I'm not sure how it works when it comes to this paste. I ensured there was none on/around the CPU's pins, etc. Looks fine to me. I've reset the BIOS and shorted the CMOS, paperclip-tested the PSU, tried every different configuration of RAM, and so forth. I really haven't the foggiest what else could make this problem. It's also worth nothing that someone suggested holding the motherboard by the heatsink, so it is in the air, to ensure there is no shorting. This DID get the motherboard to boot correctly (four lights, maybe? on the motherboard), until it started looping during the POST, stating the lack of video card. This only happened once and I've never got it to do the same thing again. Thanks for putting up with my extensive post. I hope there's a solution for this. I really don't want it to be the motherboard, because Gigabyte will probably not be able to send me a replacement until the SATA fix for these chipsets is released... If this is the case, I'll probably just send my mobo in for replacement in the two or three months that it takes for these updated chipsets to be shipped.