How to Connect R9 270X to Motherboard

[Thread7]

I just got a new Sapphire R9-270x Dual-X 2GB card.  I'm pretty sure I know the answer, but I decided to post a newbie question after searching Sapphire support and other places with no luck since I don't want to blow up my brand new card.  The included manual has a goofy diagram that doesn't even look like my card.  It says "You Must connect this graphics board to the computer's power supply". 
I have two 6-pin PCIe power slots.  I should plug 6-pin power connectors into both, right?  At the moment, this will be the only PCIe graphics card on the mb.

Thanks.

https://lh4.googleusercontent.com/-0RqUm8IHxQY/UwKAPNMT2jI/AAAAAAAAACc/MkVQ1gsSMt4/w677-h382-no/r9_270x_pcie_power_connector.jpg

[Dimrain13]

Yes plug both in, its standard to have multiple plugs. If it didnt need it it wouldnt be there.

[Thread7]

Thanks!  That's what I thought.  Only reservation was maybe that you needed multiple power inputs when hooking up crossfire multiple cards or something.