Question PC wont boot up. NEED HELP

Oct 4, 2022
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So I recently built a pc, everything went well until I turned on the PC and the fans were moving, but nothing appeared on the screen. Basically, there was no signal; so I did what I do usually and removed the CMOS battery and put it back in, didn't work. I also tried removing the ram sticks and putting them back in, but that didn't work. I then tried updating the bios through a USB, didn't work. I checked my CPU to make sure there weren't any bent pins and everything was fine, so after confirming my CPU was fine, I tried switching out the graphics card to see if it was the problem, The graphics card wasn't the problem.

I'm stuck on what to do, can anyone give me suggestions, please?
 
CPU: Ryzen 5 2600x / with stock cooler
Motherboard: ASUS PRIME B450M-A II
GPU: MSI Radeon RX 5500 XT 8gb
RAM: 16gb DDR4 3600
Storage: 512gb nvme ssd
PSU: 550w 80+ bronze power supply