I'm am (for the first time) putting together a new computer. It has a Gigabyte A-Z77X-UD3H motherboard, an Intel I3770K processor and two Kingston 4-gig memory sticks. When I power I up I never see anything on the monitor. The LED display on the motherboard reaches a point where 53 is displayed for a while and then the system powers down. In about 10 seconds all this repeats. Any help greatly appreciated.