Sounds like a bad board to me. Just in case make sure none of the devices are giving you problems. Try to start up the board with just the video card, power, and one stick of RAM connected. If you still get the same message try using a different stick, and if the result is the same then RMA it. I've seen problems with boards not liking defective devices and getting all kinds of startup errors, but it's likely that in your case you need to RMA it.