Mobo Asus x470 won't boot/Green led

[LockzPH]

Hi. Here is my problem. My CPU was reaching 80-90 C° while idle, I decided to change the thermal paste thinking it would solve that, but now I having a problem with my Mobo. I've only touched the CPU cooler and nothing else. There's a yellow-greenish led light on meaning that is a boot problem according to my mobo's manual and I'm stuck on boot with "please press del or f2 to enter uefi bios setting" message. I've already tried to swap the RAM (2x8) in every possible way. Checked the pins on the CPU and everything is alright. There is no problem with the GPU. Tried removing the SSD and HDD and nothing. Cleared the CMOS countless times removing the battery and with the pins.

 

 Everything is on, all the fans spinning and idk what to do. My shithole city don't have a technical assistance with AMD mobo's and CPUs so I can't test with others parts. All i can think is buying a new mobo myself just to try and see if the problem is with the CPU or the Mobo itself, but even the most basic one is very expensive in my country right now and i wish that would be my last resource. Can anybody help me? (Sorry for my English)

 

Config:

Mobo: Asus Rog Strix x470 - f gaming

CPU: Ryzen 5 2600x

RAM: Crucial ballistix sport 8gb 2666mhz

GPU: GTX 1060

Thanks!