I have same problem with the corsair 8500C5D , just cannot post, I have to swiched to a different ram to get post.
I notice I have to set the timinng auto or it cannot post , and it does not boot at 1:1 either have to set divider 1100,once it post my Dominator got a lots of error when using memtest3.6 , when the H , rated speed at 1066 can't get to run at 1100.
So I decided to get a pair of Crucial Ballistic 8500, coming this morning , I 'll test it out and see