PC Won't Boot At All (Tried Common Troubleshooting)

B450 Tomahawk MAX
crosshair 8 hero

Power supplies:
Thermaltake 500 watts
Corsair rmx 750x

CPU: Ryzen 5 3600

GPU: GTX 1080ti gaming x trio

Case: Lian Li O11 Dynamic XL

I recently switched from my old motherboard (B450 tomahawk) to my crosshair 8 hero and the LEDs on the board turned on, but nothing else. I tried every possible solution I could think and every solution I got from reddit for it, clearing cmos using battery, updating bios with flashback etc. I started building it outside my case by just plugging in the motherboard cable, cpu, and pcie cables. But the fans, gpu, or really anything other than motherboard lights didn't turn on. 

Then, I went out today and bought a Tomahawk max, which also didn't turn on. I just did the paperclip test with both of my psus and both past, I'm really not sure what to do now...

Could it be a cpu problem? I just got this cpu after I bent the pins on my 3900x, literally got it yesterday, so I'm not sure if that's the problem.

Maybe my gpu broke somehow?

Is there some special connector for the o11 dynamic, all I did was use the front panel wires to use the power button after shorting the two power switch pins didn't work.

Any ideas?


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