Try installing one memory stick at a time, in the order of the first black DIMM closest to the CPU, just one memory stick then power on and see if it works, if it does work shut down and add the remaining memory sticks in the respective order.
In the future I'm looking into going with either MSI, ASUS or Zotac for motherboard, but i hope Intel reconsiders and just shrinks the production of desktop boards to only one motherboard per chipset and the board should curry all the available features in the chipset, eg
Break down to this, and a simpler naming scheme:
Extreme Series
1 X79 Board with all features (Name: DX79XS)
1 Z77 Board with all features (Name: DZ77XS)
* In the naming D = Desktop Board, and the XS = Extreme Series*
Media Series
1 Z75 Board with all features (Name: DZ75MS)
1 H77 Board with all features (Name: DH77MS)
* In the naming D = Desktop Board, and the MS = Media Series*
Executive Series
1 Q77 Board with all features (Name: DQ77ES)
1 B75 Board with all features (Name: DB75ES)
* In the naming D = Desktop Board, and the ES = Executive Series*
They will only need / make a total of 6 motherboards par new generation cycle, frankly i think it would be a feasible idea instead of going out completely, and this would make support even better and easier, just my two sens of opinion.
Heck ** Why don't they hire me to over see the above transition and transformation to simplicity, elegance and reliability to their Desktop Department**
I am serious about the Job Intel, If Interested please contact me you have my email address or the website admin has it coz i normally receive email from website admin.