Ryzen 7 3700x, Asus TUF GAMING X570, RTX 2070 Super - On startup, no post, no CPU/GPU fans spin, only MOBO lights up. Troubleshooting method in comments. : r/PcBuildHelp
AMD Ryzen 7 3700X & ASUS ROG RTX 2070 Super PC Build Benchmark Game Test - YouTube