I have 11 months and 3 weeks until I need to renew AppleCare on my nifty new 2009 Nehalem.
You will all be the FIRST to know if there is a problem.
Now all the Nervous Nelly / ATI Fanbois can go back to photoshopping / (coloring in with crayons) "fermi on fire" pix.
The cable was made from a splitter that takes a single 6 pin and splits it into 2 @ 8pin. By turning it into a single line I have greatly reduced resistance from having 12 inches of wire between PCB and card.
http://www.newegg.com/Product/Product.aspx?Item=N82E16812198016
Read all 27 reviews over 2 years...nobody reports burned PSU or Logicboard. From this purchase you can make 2 @ cables for Mac. Useful for any GPU.