New build PC won't boot.

peachsmoothie

Honorable
Jan 30, 2015
27
0
10,530
Hey,
I put together my first build, and I'm pretty sure everything is connected and on. When I turn on the power supply, the lights on my motherboard turn on and I have a little light that indicated power-standby. But once I press the power button, nothing happens. No fans spin, nothing. I don't know if I'm missing a connection or what; I followed all the wires and it seems that everything is connected and plugged in securely.

This is everything I have:
Phanteks Eclipse 400 case
ASUS ROG Strix X370-F Gaming motherboard
EVGA Supernova 750 G3 power supply
AMD Ryzen 5 1400 CPU
Corsair 16GB 2400 DDR4 RAM (2x8)
EVGA GeForce 750 Ti (about 3yrs old)
My HDD is from my previous PC when is 1TB (previous PC was an HP Pavillion, genetic)
250GB Samsung EVO 970 SSD.

Right now my theories are my HD or I installed my motherboard improperly and its causing a hiccup.. Any other help or suggestions would ve appreciated.