PC won't turn on when cpu is in socket (AMD)

[Zigi]

Looking for help and sugestions, super desperate!

I wanted to swap gpus. To uninstal video drivers i used DDU in windows 10 safemode. I followed this video: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Used the uninstal drivers and shutdown option.

After swapping gpus it did not boot.

Tested the PSU on its own - it works.

Tried reseting bios by taking out the battery and shorting the pins.

Then flashed new bios with all parts removed and it worked fine. The M/B turned on. The bios process went fine. Just like in this video: xxxxxxxxxxxxxxxxxxxxxxxxxx

But now the problem is when i put in the cpu and try to power on, nothing happens. No lights no noise, nothing. What else is there to try? Can DDU brick the CPU?

M/B: B550 wifi gaming edge

CPU: ryzen 5800x

PSU: Corsair TX850

Old GPU: 1080ti

New GPU: XFX 7900XT merc 310

OS: Windows 10

[COLOR=rgb(44, 130, 201)]Third party external links removed for security.[/COLOR]

[phillpower2]

Can DDU brick the CPU?

No but a bad BIOS flash can.

Can I asked why the CPU got removed and was the old thermal compound properly cleaned off the HS and atop of the CPU then a fresh amount of good quality thermal compound correctly reapplied.

But now the problem is when i put in the cpu and try to power on, nothing happens. No lights no noise, nothing.

In all honesty the above sounds like something shorting out, the CPU or CPU socket being the two most likely casualties.

[Bruce]

@Zigi - any update?