ASUS X370 Pro wont boot, no bios, no video, no beep codes (Ryzen 3 2200G)

[menyus420]

Hi!

 

My ASUS X370 Prime Pro wont boot after bios update. Here is the long story:

I tried to update the bios to the latest version. When the bios update completed, the system rebooted, but it did not boot into bios ever again. I found a guy in the local crags list who writes bios chips and he succesfully updated the bios chip to  the latest version: 5008. He even read back the bios content and everything was okay, but the  board still does not boot. I have a speaker installed, but it does not beep. The board powers up, the RGB wire lites up, CPU and GPU fans spin up but there is no post.

 

The 2200G and the ram works in an MSI B450i (friend brought over).

What i tried:

-2 different ram kits, swap them around

-Power on without ram

-2 different PSUs (i know they work), bot 4 and 8 pin CPU headers

-On board HDMi, Display Port video outs

-HDMI, VGA, DVI from a HD6770 that i had on the shelf

-Cry myself to sleep

-Cmos reset with the headers

-Disconnect every cable expect from the power cables

-Cleaned sockets with compressed air

-Reseated CPU like 3-4 times

 

There is no sign of any physical damage or short circuit.

 

Thanks for your time!

[menyus420]

Anyone reading this in the future:

I declared the motherboard dead. Bought a Gigabyte B450 Aorus Elite, works like charm with the 2200G and now with a 3600.