Question No signal from GPU to monitor

[Codax]

Dear Tom's Hardware

So I've upgraded my rig with new mobo, CPU, and RAM. But when i started up the computer I got no signal to my monitor, which is weird because it's the same GPU and monitor, and both were working just fine with the old CPU, ram and mobo. I was a little unsure what the source of the problem was, since i didn't know if the computer posted at all, so i pulled everything out of the case and started again on cardboard, this time adding components one at a time. This time i got into BIOS totally fine and every part seemed to be working. I put everything back into the case and again: No signal on the monitor. I've tried a lot of things so far; resetting the CMOS, trying all the different ports on the GPU, making sure everything is plugged in etc. But since everything was working fine before, i fail to see why all of a sudden i get no signal? What could make the GPU send signal by being on a piece of cardboard?

Please help My new rig is this:

Mobo: AsRock H410-hdv/M.2
CPU: i5 10400F
GPU: Palit Geforce 1060 GTX
RAM: HyperX Predator DDR4 2666 MHZ (2x8)
PSU: Chill Innovation CP700M 700W
SSD: Samsung 750 EVO

Codax

 

[ChumP]

Might be that your motherboard touches the case causing a short. Make sure that the motherboard stand offs are in place.
Check for any contact between the motherboard and case (or any other piece of metal) thoroughly.

 

[Codax]

But would'nt that cause the whole board to not deliver electricity right? All fans are working as they should, and the fans on the GPU are too.