The title said it. I turn on my computer, the fans spin, the LEDs turn on but the screen remains black. Based on research, I think it's the motherboard that won't load into BIOS. Before this started happening, I installed a CPU cooler which required me to unmount the motherboard and graphics card, remove all cables, and fit it back into place. I am really pissed because I spent so much money and time in this project. Any solution would be REALLY appreciated.
Motherboard: Asus M5A78L-M PLUS/USB3
Motherboard: Asus M5A78L-M PLUS/USB3