PCIe Crash - Booting Held; Z170X Gaming 5

[ainsleyclark]

Hi all.

So my new build has been an absolute breeze so far. I had some trouble last night though.
Was trying to watch a YouTube video and I saw a little red box when trying to make it full screen. It then crashed and rebooted.
Now I cant boot at all. It got stuck at PCI configuration end so I booted with npci=0x2000 and now it hangs at an Ethernet flag (attached image).

Im using a Z170x gaming 5 with an old Nvidia 9500gt.
I'm presuming it's something to do with the graphics but I'm at a stump so any help would be greatly appreciated.

 

[ainsleyclark]

Any ideas?

 

[ainsleyclark]

Any ideas?

 

[P1LGRIM]

Any ideas?

Safe mode ?
Boot from your USB installer ?

 

[ainsleyclark]

Tried both of above and still not working.
Can you suggest anything else?
Thanks in advance

 

[ainsleyclark]

Completely out of ideas.
I could reinstall but I'm worried it will keep happening.
Has it happened to anyone else?

 

[ainsleyclark]

Ok so fix was USB ownership / injection Can anyone shed some light on why I didn't need this before?