I'm redoing my loop and I plan to install a Koolance plate exchanger. Currently I have a single loop which connects my radiators in the backyard to my PC in my bedroom. I'd like to have the radiator loop independent of the PC loop to allow me to add dye into my PC loop and to ease maintenance since I can change parts in my PC loop without affecting the radiator loop.

Is this a bad idea? Would the plate exchanger lower my cooling efficiency?

HXP-135:


HXP-193:


I'm worried that as the loop reaches equilibrium, my Delta gets smaller and as a result cooling capacity drops.

Would the HXP-135 handle a 2600K and dual GTX470's?