Question My first PC build, followed all the steps but when powered on, lights and fans flicker but do not stay on except for GPU fans

[pepejamming]

What could be the problem?
System specs as follows;
CPU: AMD Ryzen 7 3700X 8-Core, 16-Thread Unlocked Desktop Processor with Wraith Prism LED Cooler
CPU COOLER: be quiet! BK024 Dark Rock Slim, CPU Cooler, 180W TDP, Silent Wings 3 120mm PWM Fan, Compact Construction
MOBO:ASUS AM4 TUF Gaming X570-Plus ATX Motherboard with PCIe 4.0, Dual M.2, 12,2 with Power Stage, HDMI, DP, SATA 6Gb/s, USB 3.2 Gen 2
RAM: Corsair Vengeance LPX 16GB (2 X 8GB) DDR4 3600 (PC4-28800) C18 1.35V Desktop Memory - Black
SSD: Samsung 970 EVO Plus 500GB NVMe M.2 Internal SSD (MZ-V7S500/AM) [Canada Version]
GPU: EVGA GeForce RTX 2060 KO ULTRA GAMING Video Card,
PSU: Thermaltake Toughpower GF1 650W 80+ Gold SLI/Crossfire Ready Ultra Quiet 140mm Hydraulic Bearing Smart Zero Fan Full Modular Power Supply 10 Year Warranty PS-TPD-0650FNFAGU-1
CASE: Thermaltake View 31 RGB Dual Tempered Glass SPCC ATX Mid Tower Tt

 

[norcalsc]

did you plug your CPU cooler fan into the correct header, the cpu_fan?

 

[pepejamming]

yes!
Picture of mobo:

https://imgur.com/a/nU7RBAn

video example of the boot-up process (no reaction on monitor)