Can you clarify what you're trying to do?
Can you clarify what you're trying to do?
These are the findings from the PSU power test.
https://ibb.co/kGhdN2P
CPU-atx hosted on ImgBB
Image CPU-atx hosted on ImgBB
ibb.co
https://ibb.co/Jk1yV7n
Atx-cpu-molex hosted on ImgBB
Image Atx-cpu-molex hosted on ImgBB
ibb.co
If shorting the power switch leads on the motherboard doesn't work it has nothing to do with your case. If it was the CPU it should still try to power up unless there was a catastrophic failure (and then give a QLED on CPU). I'd say you're probably looking at motherboard here.
You can perform a specific test on your MB to check for damage or death, and thank you for your support!
Unfortunately there really isn't anything you can do to test a faulty motherboard aside from trying to rule everything else out. I just jumped through something similar with a friend on a cheap Asus board and we just couldn't get it to do anything despite swapping and disconnecting everything except the CPU. They even ended up getting a different CPU and still nothing.
Does your PSU tester check all the voltages coming form the PSU? It could be that one voltage rail is low, so it doesn't turn on for safety.