I am building a pc and i installed the memory, cpu, and cpu fan. The cpu is an i7 4770k and the mobo is a gigabyte GA-Z87X-UD4. I wanted to do a test boot, so i hooked up the mobo to the monitor via hdmi, using the ports on the mobo, not a graphics card(i was planning on using the intel hd graphics instead.) All components lit up and the fan spun, but nothing showed oj the monitor.. So, i am stuck where i should go.