Rick, do you mind me asking how much your entire water cooling setup cost you in total?
I did a quick spec for myself from a competitors site to see how much everything would cost me, for cooling my GPU and CPU, and it was around £180 for everything..
I am definitely going to get onto water, I have toyed about with the idea for ages, but after seeing your setup, I have decided to go ahead and build a loop for my system...
It would seem that the temps you are getting @ 4GHz are roughly the same as what I get with my D0 920 on high end air @ stock frequency!!
My chip is a dog though, I have a TRUE cooling it, and the temps are still insane..
3.8GHz o/c and it idles @ 52c, and full load temps are 88c!!!
Thought it was maybe the base of my TRUE, so I tried my second TRUE and the temps were identical!!
I have put it back to stock now because of these temps, and it idles @ 44c and loads are around 64c, which is absolutely shocking!!
I've tried reseating the HSF several times, applied more paste, re-applied paste and nothing makes a blind bit of difference...