So I'm having an issue that I believe to be either related to my CPU or motherboard (AMD Ryzen 7 1700x and ASUS X370-pro AM4). When I power on the system everything works fine, all the fans on the case, GPU, and CPU fan all work properly for a few seconds and then turn off. I never get any display on monitor. When I unplug the CPU from the Power supply though, the computer stays on, with motherboard lights turning on, all fans spinning. Removing the GPU, Wifi Card, RAM, Sata connections, etc. have made no difference, the only change that has resulted in any difference is whether or not the CPU is powered. This has been tested with two power supplies, both yielding the exact same results. I'm assuming this means there is an issue with either the Motherboard or the CPU, I have tried removing and putting back the CPU and replacing the thermal paste on the CPU to no avail. I don't have access to another AM4 chip to test in my motherboard, is there some other way to determine where the issue is coming from?
Thanks
CPU: AMD Ryzen 1700x
Mobo: ASUS X370-pro ATX AM4
CPU FAN: Noctua NH-D15 SE-AM4
PSU: CSM 750W 80+ Modular ATX Power supply
RAM: Corsair - Vengeance LPX 16GB DDR4-3000
GPU: GTX 980 4GB - Windforce
CASE: Phanteks - Enthoo pro ATX full tower
Thanks
CPU: AMD Ryzen 1700x
Mobo: ASUS X370-pro ATX AM4
CPU FAN: Noctua NH-D15 SE-AM4
PSU: CSM 750W 80+ Modular ATX Power supply
RAM: Corsair - Vengeance LPX 16GB DDR4-3000
GPU: GTX 980 4GB - Windforce
CASE: Phanteks - Enthoo pro ATX full tower