I read the artcile on the EK-XLC Predator 280 AIO CPU & GPU Liquid Cooling unit. http://www.guru3d.com/articles-pages/ek-xlc-predator-280-aio-cpu-gpu-liquid-cooling-review,1.html I noticed the CPU has a much higher temperature under load than the GPU. Does the loop matter, i.e., fresh coolant to the CPU first, then the GPU? The article doesn't mention which direction the coolant flows, so my real question is this: Which direction should the coolant flow in a CPU & GPU loop? I think it should go to the CPU first, am I correct?