Having lived with the new water cooling system for nearly 2 months, it has been fun, I’ll give it that. But I should have added more cooling capacity. My golden rule was roughly one 120mm rad per heat generating device. One CPU & GPU equaled 2 120mm radiators. This was fine for my early spring build where the temperature inside my office wouldn’t pass 23C, but the heat of the summer is now upon us, as the setup just wasn’t cutting it. The solution is simply to double the radiator capacity. After many hours of though experiments, I the best option to to replace the outer radiator with a 360mm version of the same model. This would effectively double the systems capacity. I also could have done a couple things different with respect to hose management. Replacing a few of the couplings with 90 degree versions would reduce the amount of bend radius required. This hopefully should create less air bubbles in the liquid.

While I was at it I decided to shop some old parts around.
New parts for this mid year upgrade are as follows.

OLD Outer Radiator: EK 120mm
NEW Outer Radiator: EK 360mm

OLD MB: ASRock Z68 Extreme 3 Gen 3 – Was holding me back on its overclockability.
NEW MB: Asus Z87 Maximus VI Hero – A more advanced UI, fan control, power delivery, and a nice black/red color scheme.

OLD CPU: Intel i5-3570K – Moving away from the LGA 1155 socket
NEW CPU: Intel i5-4670K – Let’s see how the integrated voltage regulation plays out.

OLD GPU: EVGA GTX670 – Starting to show its age.
NEW GPU: EVGA GTX770 – Essentially a pumped up version of last years GTX680, great value, and should be a nice incremental upgrade from the 670.