Just sent my DS4 back..... As you can see by my sig, the ram I have is specifically listed on the Gigabyte Website so that's not the problem.....
I seemed to have the same problem as many other people are having (counted more than 10 already with the same symptoms!)..... Turn the machine on, all the fans spin up for about 2-3secs and then it re-starts.....No beeps, no post, NOTHING.
Re-named them GIGATRIPE
Gonna get me a proper mobo this time, what I shoulda bought in the first place..... ASUS P5W DH, you can't go wrong with Asus {well, normally anyway}