PC wont boot after I reflash MSI Armor RX 570 with stock ROM after the second restart.. Help

[sokasokas]

Please Help,

 

condition:

1.I got my MSI Armor RX 570 flashed for mining, bricked it out but I brought it back using original rom.

     - My pc dont have iGPU so i paired another GPU to help flash it. > bricked on 16x PCI-e, workin GPU on riser.

2.after restart it worked fine and and i can use both of my GPU to mine a little bit and light gaming (just a short testing).

3.Later I turned off PC, next time when i started my pc it wont boot...

4. I tried to switch slots with my other 2 gpus ( i have 2x RX 570 and 1xRX 5700xt) still no change.

 

Please help, thank you...

(attached screenshot of gpuz when it worked before)