RE: Power Cable & Plug location for T5810 to Nvidia Titan x
Did your system come with an 8 pin to 8 pin VGA power cable?
If yes, you can use a SATA power to VGA power converter cable like this one.
Or if you have a 6 pin connector and need an additional 8 pin connector:
Of course, your PSU will need enough power output for your VGA card.