Trouble with PSU and graphics card

[Erifnogard]

First time pc builder here. I have everything setup, with most of the wiring done. The only problem I have is connecting my graphics card to my PSU. I have the Radeon 6970 and a seasonic s12 620w PSU ( http://www.newegg.com/Product/Product.aspx?Item=N82E16817151096&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-Power%20Supplies-_-SeaSonic%20USA-_-17151096&AID=10440897&PID=3938566&SID=).


The 6970 needs two wires, right? A 6 pin and an 8 pin coming from he psu? The 6 pin goes in fine, the 8 pin doesn't. I don't want to apply too much pressure (especially if I don't even need the 8 pin).

Anyway, is putting the 8 pin normally difficult? And do I need both the 8 pin and the 6 pin?

Thanks.

 

[Rockdpm]

Yes its auctually quite easy to plug in the Graphics card to a PSU. heres a video thatl help.

http://www.youtube.com/watch?v=0cNrz9k90ds

 

[Erifnogard]

Thanks for the reply, but the 8 pin isn't going in. It seems like I'm not the only one, however:


http://www.youtube.com/watch?v=xPzjebT3N3U&t=1m43s

http://www.youtube.com/watch?v=6lnnsRdwsR4&t=6m09s

 

[4745454b]

Do you have the motherboard 8 pin plug by any chance? It's keyed differently then the PCIe 8 pin plug. Look for a different 8pin plug.