No display after changing cpu/gpu

[dredgos]

I recently updated my CPU/GPU to the following

AMD Ryzen 5600 6 core AM4
Radeon 6700xt GFX card

The rest of the specs look like this:
Gigabyte AB350 gaming motherboard
16GB Team group vulcan RAM
Samsung evo 850 250gb
Samsung evo 840 250gb

I simply took out the old Ryzen 5 1500x and GTX 1060, reconnected up and now when i press the power button the PC appears to start but i get no display. Even if i put the old components back in now i get exactly the same problem.
Ive tried using only a single ram stick and ive also removed all the excess storage drives all with the same result. Its making me think that the motherboard has somehow died a death, but i dont know if there is some way i can confirm for that thats the problem without actually replacing it - does anyone have any ideas?

 

[dredgos]

Yeah i tried removing the battery, and resetting cmos by jumping the connector also with no joy.
I did wonder if the bios was the problem but i now cant get in there as i get no display signal at all even with all the old components back in

 

[dredgos]

I managed to get it back working the old components in and update bios to the latest version f51l - then as soon as i put the new cpu on its the same problem. I actually found a thread somewhere on reddit i think that said the version 1.0 needs a VRM rework and for that it would need to go to gigabyte - im starting to think replacing it might be the most straight forward option!

 

[dredgos]

Interesting, i think i went straight from f51c to f51l but there are a couple of releases between them so i will roll back to the old version then do them one at a time

 

[dredgos]

No joy unfortunately, rolled back to the old bios version, then ran updates for both chipset and bios one increment at time to end up back with my blank screen.