Question My pc isn't working after I start it and I have checked all the usual PSU issues and it just doesn't start

[_discomfort]

Motherboard: msi pro b650-p wifi
CPU: Intel Core i7-12700KF 3.6 GHz 12-Core Processor
GPU: Zotac Twin Edge OC GeForce RTX 3060 Ti 8 GB Video Card
PSU: MSI MAG A850GL PCIE5 850 W 80+ Gold Certified Fully Modular ATX Power Supply
RAM: G.Skill Trident Z RGB 32 GB (2 x 16 GB) DDR4-3600 CL18 Memory
HDD/SSD: Western Digital Black SN850X 1 TB M.2-2280 PCIe 4.0 X4 NVME Solid State Drive

I've done all the checks for power supply issues and made sure everything is plugged in correctly, this is my first time building a pc so I don't have the best experience to figure out what is wrong,

 

[Lutfij]

Welcome to the forums, newcomer!

You might want to pass on an image of your build and it's innards. Hos them on a site like Imgur then pass on a link for us to see on this thread. As for your build did you breadboard your build when you first got your parts?

Rams in slots A2 and B2 for your motherboard? How are you cooling that processor? Rocker switch on your PSU in the | position instead of the 0?