Originally Posted by apetay
They aren't identical, the bad one is 6 pin to 6 pin.
The good one is 8 pin to 6 or 8 pin.
The worst bit is, had the 6 cable you used have been plugged into the 8 pin port (red) then it would have worked fine, so the port which looks like it should be used didn't work, and the port which looks like it had too many pins would have actually worked!
Because f*** logic