Question PC not booting after using DDU to remove Nvidia and AMD drivers ?

[NadeemX]

I recently moved my NVME to a new PC, so I decided to use DDU to remove those drivers. It worked fine when I removed the AMD drivers and I restarted, and then I removed the AMD drivers again but without internet, and did the same with Nvidia drivers right after that, without shutting down or restarting.
After that I couldn't get any display signal. The GPU was working fine before in another build and everything powers on fine.

I tried:

• Moving the RAM sticks around.
• Swapped the RAM today to try and get it to boot.
• Resetting CMOS.

But none of those fixed the problem.

SPECS:
MBD: Gigabyte B550 UD AC
CPU: Ryzen 5 3600
GPU: GTX 1080Ti Blower style
SSD: 970 Evo M.2 NVMe
HDD: 8TB WD RED
RAM: 2 x 8GB Geil 2400 M/T CL16-16-16-36 (at time of boot failure)
PSU: 550 watt EVGA 80+ Bronze

 

[NadeemX]

I also tried moving the GPU to another PCIE slot, it still didn't display anything. Although it still has the LEDs on and the fan spinning.

 

[NadeemX]

Swapped the GPU to a GTX 970 and even that still doesn't work, it lights up and the fans spin.

 

[NadeemX]

Swapped the monitor and cable from a known good cable and monitor and it booted with the 970

 

[NadeemX]

Swapped to the 1080Ti and it booted, I assume the cable is faulty.