PC not displaying a picture at all :( Quite the mystery!

[bobert50]

Think if you try the onboard graphics you will have to remove the 1060. Chances are though the CPU has no igpu.

What is the GPU you tried from your media PC?

Think the next logical step is to try another PSU.

I tried a 970 GFX from my media PC as well as an even older GTX 780 the day before, but yep, no display still.

 

[bobert50]

that will just be a pcie x1 slot then, a second pcie x16 slot will look exactly the same as the normal gpu pcie x16 slot,
rip it all out and bread board test it , if it still doesn't work try a new psu, which will be pretty easy if you already have everything out of the case
have you tried a different video cable yet?

Yep I figured it must be a pcie x1 slot but wasn't sure of the name

I've got two PCs (problem pc + fully working pc) set up on the dining table atm, so it's definitely not the wire, but I have tried various HDMIs and displayport cables the previous day too.

 

[bobert50]

Thank you for all the suggestions. Even my earlier 'breakthrough' turned out to be incorrect this morning with regards to the GPU from the 'problem PC' not working in my media PC, or so I thought. It turns out just via HDMI it didn't show the mobbo logo in time on the big TV and it got confused in windows initially, but it's now working fine in my media PC after leaving it a while. Hmmph! Zero progress at all. Completely baffled.

From experience, something still makes me think this sounds so RAM-like, but I've tried the sticks individually, in all combinations / RAM slots. I may as a last ditch attempt try to borrow some of the same type of RAM from my wife's PC. Am I correct now to thinking more along the lines of the very few remaining things, RAM or maybe even faulty motherboard?

 

[Threepwood]

m I correct now to thinking more along the lines of the very few remaining things, RAM or maybe even faulty motherboard?

yup, probably the motherboard imo, proably not the gpu if you now have it working in your media PC, though I guess that maybe the GPU is on it's way out, and you're just witnessing it's last beaths, could still be the psu too , personally I would breadboard it, and try a new psu if that doesn't work
you've given it a good fight though, good on you!