Thanks for the suggestion.
I've tried reseating both the riser and GPU multiple times
I've tried a different PCI-E output on the stock modular NZXT H1 PSU
I've tried a different PCI-E cable that came with the Case/PSU
I put an old GTX650 in that I had lying around for years and that didn't spit...
Just Built this little ITX quickly to take with me while working away for 4.5 Months
3DMark CPU Bench passes fine no issues however Timespy & Firestrike crashes (I assume every other GPU Benchmark too)
Tried Firestrike once lasted less than 2 seconds, Timespy normally crashes after 5 or so...