Ya they will work fine on that board, and will do 2000mhz at looser timings. They also have a 777-20 1600Mhz XMP Profile programmed in them, and will do that as well.
They look superb as well, if you would like a video of them running I could post one or link you to someone else's video of them
Sorry I can't link to my review on them yet, I am slow with these types of things it seems. I received them direct from Crucial for a review, several months ago. Life has just got in the way so I have not finished up the review yet.
They are in stock on ebay but for WAY TO much, $234. At least they have came down in price, Crucial had them listed at $350 when they sent me a pair.
I do see a 3GB set on ebay for $60 though
http://cgi.ebay.com/ws/eBayISAPI.dll...m=190328792214
$139 for 6GB Set here
http://www.priceguidenetwork.com/cru...664tb1608.html
$188 direct W/ Free shipping
http://www.crucial.com/store/partspe...KIT25664TB1608