Talonman, I have a GFX2 DTek Block and a Unisink with a fan blowing over it. I have raised my clocks up and currently have it folding. I wanna fold for a couple of days first and then ease into the hard stuff. The temps are extremely low for folding on a GPU2 client with this water setup. It's currently folding at 36C, and before would idle at 41C and fold at 61C. I do not know if it's stable yet. I just applied those settings. The cleint has not EUE's and has completed steps so it looks like it may hold for folding, but I need to run more intensive tests.

My OC currently is at 720/1512 Unlinked/1200. All temps look good in GPU-Z. The VDDC Temps range from 56C to 69C...there is one VDDC Slave that's on the hot side.

I'm really amazed with this water loop so far. I could never have achieved those clocks at all on stock cooling. There is just no way. The shaders was the one that was holding me back before, but temps were also an issue. I got into a thermal runaway condition where the stock cooling just could not keep up once I passed a certain threshold. The stock cooling wasn't bad, and gave me great termps, but for OC's like this it takes water. I used the Innovation Cooling (IC) Diamond for my TIM.

I'm very impressed with this setup. I'll report more on the stability when I geta chance to really test it properly.