Asus z87-pro motherboard, i7 4770k cpu, Thermaltake tr2 600w power supply, Crucial Ballistix Spot xt 2-4gb ddr3 1866 cl10 ram kit. new system. first post I get code 55. I get post memory check then code 55 and memory led is on. goes thought memory check and stops at code 55 Memory not installed. I am on 2nd set of memory kits. same problem. all fans run every thing is on. help.