so basically i built a computer, and i have a Intel Core i3-7100 3.9GHz Dual-Core Processor, a EVGA 450W 80+ Bronze Certified ATX Power Supply, a Asus Radeon RX 460 2GB Dual OC Video Card, a Sandisk SSD PLUS 240GB 2.5" Solid State Drive, a GeIL SUPER LUCE 16GB (2 x 8GB) DDR4-2400 Memory, and a Gigabyte GA-H170M-DS3H Micro ATX LGA1151 Motherboard, but the cpu and the fan for it dont turn on for some reason (theyre not broken), so when i plug in the set up into a monitor, it wont boot up and the screen says that its not connected. all the fans and the memory card leds light up. a connector on the 4 pin atx wire for the psu is a bit chipped off so the metal is exposed, but i dont think that is the problem. all of the components arent broken, and all the wires are plugged into the right spot. why wont it boot up?