Hello, i just bought a Antminer S1.

And i don't know if i can use this power supply or not. it only have one PCI-E 6 pin, but it also have 8pin can i use the 8pin?

This is the power supply (got it for cheap, yes i know i am a cheap bastard)

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139026


Or is this useless?