This is my LT x48 board.I use a Danger Den MPC x48 with brass top.It fits perfectly.There is no shacking or anything else.I was a tad concerned about the 2 hole also.There is an acylic plate that goes under the board.You attach the screw's to it.Ill flip the board over later if your intrested in seeing it.It aint moving no where.Buy the DD you wont regreat it.

I used a EK for the south bridge.I had to take a dremal to it.To make it work.I all rdy had it from a failed 780I WC.Id love to have the universal danger den for my south bridge but saving for a 4870x2.

The biggest thing I love about the LT is .It is so flat and pretty thick.My evga 780i board was so warped and thin. I couldnt get all the water blocks on it.You can also put your video card in any video card slot.If you run a 2GPU card.Youll be happy.

Ive used Viper John ,EK,and Danger Den.Id rate DD the best.No regret's