I built my own desktop pc mid tower with new MB (Intel DH67BL Micro ATX DDR3 LGA 1155 SATA (6Gbit/s) Desktop Motherboard (BLKDH67BLB3), CPU cooler, gtx 1050 ti GPU and fans. I used my dell OptiPlex HDD and Optical drive. When I turn on the computer everything is running all fans, gpu, cpu cooler and optical drive opens and closes, the green light is on at the bottom of the MB but I can not get a video on the monitor, it only wakes up then goes to power saver mode. I unplug the hdmi cable from the video card and plug into the onboard graphics and still same thing. I have also tried with a different hdmi cable and monitor. I took the computer into a repair shop and they tested the components and said all are working and that my cpu on the MB had 1 pin broken so that's why I bought a new MB. Any ideas as to what is happening?