I've searched the web and this forum and have not found the answer, but I did look.
 
The 780ti SC has 2 power cords (6 and 8 pins respectively).  They both have two connectors for the power supply to connect into.
 
Do I connect both power connectors to the power supply (2 power connections for each cable) or just one power connection for each cable?  
 
Thanks for the help,
Chris

Thanks for your reply, 
 
The power supply is corsair rm850.  
 
There aren't any adapters, just the power cables that came with the card (2 cables, one 6 pin and one 8 pin. Each cable has 2 "pigtails" for a combined total of 4 connections to the power supply. 
 
To clarify my understanding, you recommend connecting all 4 power connections to the power supply, which makes sense, but with a card this expensive, I wanted to be sure.
 
I appreciate you taking the time to reply and help me out!
 

Cool!  THanks a lot.  Here goes nothing!

Thanks. I just wish it was for me, sadly, it's my son's and he's already grounded me from playing on his system <sigh>.
 
As I expected, your solution worked perfectly, thanks a lot for the help!

Dad, don't touch my computer, you'll break it!
The world is upside down lol.