I have just been checking up online regarding your power supply and this would seem to substantiate my last post regarding the connections. There doesn't even seem to be an 8pin CPU connector. See below for the specs:
Overviews
* Aywun MEGA POWER ECO Series
* Peak Power 750W
* 80PLUS Certified
* 140mm fan ultra quiet fan
* 20+4 pin connector
* 2 x 6pin PCIE connector
* 2 x 6+2pin PCIE connector
* 6 x IDE connectors
* 6 x SATA power connectors
* 1 x FDD connector
* Over Power Protection (OPP)
* 100-240V
![Huh ???](http://forum.giga-byte.co.uk/Smileys/default/huh.gif)