hows amd handling high vdimm chew?
does the imc like d9gtr style pounding?

would be a good alternative since micron can do 800+ 665 as well and is cheap these days, only drawback is its 1gbit so you need 4 sticks for 4gb or 2 dualsided sticks which wont clock as high... plus it needs 2.2v+ to max out cas6...