I have just completed a new build for the first time in 5 and a half years. I have a new power supply (Sentey MBP1000-HM), a new CPU (Intel i7 4790K), a blue-ray optical drive, and a Samsung 850 EVO SSD. The motherboard is an Asus Maximus VII Formula that I bought "like new". Every time I have started this build it won't boot and displays a Q-Code of 55 which according to the manual means No Memory Installed and my DRam LED is on continuously. I initially had 4 8GB sticks of G Skill Ares 1600. I then tried two sticks, and one stick, all following the directions of the manual. Same thing, 55, no memory. I then went and got some Crucial Ballistic 4GB sticks which are in the qualified vendor list provided with the manual. Same thing. I have held the CMOS reset button down for over 10 seconds but same thing. MemOK hasn't worked.