The following are good for all 5 boards if you can find one:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817171069
http://www.newegg.com/Product/Product.aspx?Item=N82E16817159158
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182251
Here is what AMT recommended
For those prices, you can easily pick up 2 750 - 900w power supplies + power supply link cable. This will put out more power, connectors, redundancy, and still be cheaper in the end.
Obviously AMT doesn't know what they are talking about. Bad suggestion.