Computer is on but there is nothing displayed

Jan 29, 2019
Basically my PC turns on (LEDs and fans are on) but nothing is displayed. Any monitor shows no connection. This occurred after I reinstalled windows. I thought there might be a hardrive issue but I hooked it up to a different computer and it is completely fine. I've tried using the graphics from the motherboard vs the gpu but there is no difference. I've tried pretty much anything I could find on other forums, like clearing CMOS, but nothing seemed to work. After reading through several forums I decided to try replacing the motherboard. I bought the exact same motherboard and have just replaced it, but no luck. It still shows no display. Any suggestions or help would be much appreciated. Sorry if this isn't worded very well, I tend to be an amateur when it comes to computer stuff.

System Specs:
CPU: i5 - 8600k
Motherboard: MSI B150M Pro-D
GPU: Zotac gtx 1060
RAM: XPG Z1 DDR4 2400MHz (PC4 19200) 8GB (4GBx2) Memory Modules, Red (AX4U2400W4G16-DRZ)