If it's an entirely closed water loop, and the chiller is enough to chill the load intended, the water temperatures will eventually even out. But when water goes over a TEC or some type of cooling surface, it doesn't drop temperatures of the water drastically unless it has a very low flow rate across it. This is the reason it shouldn't matter where you put a chiller in your loop; eg: Before or after the CPU. You usually just put the chiller before the CPU because the temperature will be lower, even if it is a very small amount (depending on the block design).Water Temp In vs Water Temp Out
High Flow Rate: Low Temperature Sway
Low Flow Rate: High Temperature Sway
Originally Posted by Nastroglide
Sandwiching tec's between 2 waterblocks is never going to be efficient. Real life chillers don't work that way.
Using a CPU waterblock isn't the best design of a chiller because is designed to get all the water to the center of the copper plate. That's not to say no CPU Waterblock will do. Ironically enough, the poorly designed waterblocks usually cool most of the copper surface evenly. Basically every chiller made by Mindchill is a TEC Sandwiched between a waterblock, it's just a specifically designed waterblock.