Question Pc powers on but no hardware does

[Dredi]

So a while ago i bent the pins in my Motherboard while trying to apply new paste on my CPU, i didnt notice until i powered the PC on and saw that the PC is running but nothing works, the monitor didnt detect any signal my mouse, keyboard and GPU were not responding. Then i checked and saw the bent pins first i tried to fix them but it was the same result again. I checked if everything was working on another device and the mouse keyboard and monitor are working fine. The only thing i didnt check was my GPU because i dont have another PC to built my GPU in to check if it works. So logically thinking i replaced my Motherboard thinking that, that was the cause but it didnt change anything everything was still receiving no power/not responding. After that i tried to replace my CPU but it didnt work aswell it was the same result again. I dont know what else can be the cause. (Also i have plugged a usb memory stick in to the motherboard with a LED indicator and the LED did work when i powered on the PC if this gives some usefull information)

The things i tried short:
Replacing CPU, Motherboard, CMOS battery
Clearing both CMOS batterys
Powercycling
Plugging the Monitor to the motherboard instead of GPU
Cleaning everything from Dust etc.
RAM reseating including trying to use only 1 RAM stick at a time.

My hardware (Some hardware after a arrow indicates that they have been built in after my PC stopped working)
CPU: I7-6700k --> i5-6400
MB: Prime B250-Plus --> Asus B150-A
GPU: GTX 1060 6gb
RAM: Crucial Ballistix Sport lt 16gb 2x8GB ddr4 2400mhz
PSU: Corsair CV 550 Watt

 

[Grobe]

Well, anything between mass damage to nothing may happens when bent pins occur - can't know for sure if you just crack a data bus or if a complete short circuit happens, or both.

Anyway, there are certainly potential for damage to multiple components in this scenario.

 

[Dredi]

Well, anything between mass damage to nothing may happens when bent pins occur - can't know for sure if you just crack a data bus or if a complete short circuit happens, or both.

Anyway, there are certainly potential for damage to multiple components in this scenario.

I already did replace the other components so it can only be the RAM Sticks or the PSU or both right? and the gpu but im not including that one since i just want the computer to work with or without a gpu.