Originally Posted by Legonut
This will work just fine. Think about it this way: A single Predator 360 will operate at say, 3000RPM and 10ft of head (just examples). Doubling the components with everything in series will double the restriction of the loop. The pumps in series will double the head pressure, and flow will actually be exactly the same as with a single loop.
If loads are distributed evenly across the two processors and airflow across the two rads is the same, linking the two Predators together will have absolutely no effect on system temps, flow rate, or water pressure.
I'm not sure how loads are distributed in a dual-cpu system, but your two rads probably wont be getting the same airflow/air temp. Linking them together would bring temps closer together.
thanks for confirming my thought process! A dual cpu system nearly always distributes load evenly across CPU's. There are exceptions, but I won't be setting myself up for those to happen. Thanks again!