Important Questions to Ask

  1. Why is water cooling better?   Water can transfer heat 24 times better than air and can absorb 4 times as much heat as air, before it rises 1 degree Celsius.  Therefore, water can carry heat away for the processors much more effectively and they stay much cooler.
  2. Why is it important to keep the CPU and GPU cool?   They run at slower speeds when they get too hot (the mother board monitors the temperature and limits the processing).
  3. Does the RAM need to be cooled?    Not really.  The system RAM does not generate as much heat and the air around them stays much cooler with water cooling.  RAM on the GPU  may need to be cooled by the water block.
  4. Will my PC run quietly with water cooling?   Yes, there are less fans and they can run more slowly in a water cooled computer (providing that you use a quiet pump).  
  5. Does the design of the water cooling system and the parts used matter?   Yes, a smart design with quality components improves cooling.
  6. Does the water flow rate matter?   Yes, higher flow results in more heat transfer from the water blocks to the radiator (the high heat transfer properties of water allows the heat to transfer quickly).
  7. Does it matter how much water is in the system?   Yes, using a reservoir to increase the volume of water allows more heat transfer before the temperature of the water goes up.  It can also be used to generate water pressure (like a water tower, when placed at the top of the case, see PC Water Cooling Principles and Ideas).
  8. How do I increase water flow?  There are 2 variables, pump pressure and the resistance in the water loop(see PC Water Cooling Principles and Ideas).
  9. How do I reduce resistance?   Use low water blocks and a radiator with large openings and low internal resistance.  Establish parallel flow as much as possible.
  10. What does parallel flow mean?   When water cooling more than one GPU, use two tubes fom the CPU water block, one for each GPU.  Use a radiator with 2 entry ports, even with one GPU (see PC water Cooling Blocks).
  11. Does it matter what size tubing I use?   If you have room in your case , larger diameter tubing has less resistance, allowing more water flow and reduced work by the pump (1/2 inside diameter tubing is excellent).
  12. Are cooling blocks all the same?   High performance water blocks use cooper instead of aluminum (twice the heat conduction) and have lower resistance to flow (see PC Water Cooling Blocks and Pump).
  13. Is a larger radiator better?   Not if you cannot cross ventilate it with cool air.  The internal resistance to water flow and its heat exchange properties are important.  We used a compact fan with copper fins, good air flow, and low resistance to water flow with great success (see PC water Cooling Reservoir).
  14. Are all the pumps the same?   Some pumps have a more efficient design, are quieter, and deliver better flow (see PC Water Cooling Blocks and Pump).
  15. Where can I get more information and examples of the components to use?  Click this:  The Best Way to Water Cool a Desktop Computer.