6970 Power Cables

sydeamon7

Distinguished
Feb 26, 2011
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0
18,510
Hi guys,

I have recently purchased this card => http://www.sapphiretech.com/presentation/product/?leg=&psn=0001&pid=1081

As you see, my card is Radeon HD 6970. I have already plugged it to the computer but I have a concern here. It has a power cable like this one => http://thumbs2.picclick.com/pict/2803980628454040.jpg

There are 2 ends here, which go to power source obviously. I only connected one of them to the power source, and the card is working just fine. However I'm curious if I should have connected the second end as well or not?

Could you please help me here?