Bluesign:

I use a Scythe Ninja Rev B on my DQ6. You can see pictures of it in use on someone else's different motherboard on page 55. It's big, but it just barely fits the other coolers, using all of the possible space it can (I mean no extra room, but it has 1/16" - 1/8" space where it needs it). I got another one for my wife's computer too (she gets a DQ6 too so I don't need to have different drivers all the time). And the backplate stays nicely in place too.

When you put a fan on the side though, the ram slots are covered, so you can't be using any high-rise ram coolers. My high performance, low profile Patriot memory fits nicely.