Best radiator size
Best radiator size
Essentially I'm aiming for quiet performance but still need some fans running while getting some operation. My setup allows 3 560mm and 1 280mm max, but the best I can get is 40mm with two 560s and one 280. How much do fin density and thickness influence fan RPM noise and cooling capacity?
Let me know your system details.
Are you considering a strong CPU or graphics card upgrade?
What is your budget for this build?
Which parts are you planning to cool with water (CPU only, full monoblock, memory, cards)?
If it isn’t a top-tier rig, I recommend the Thermaltake RL 360 radiator with their PR-22 D5 pump and reservoir. The setup would include pump, video card, CPU, radiator, and reservoir. For fans, the EK Vardar FF5 PWM high static pressure models are great choices—they run quietly even at full speed.
For an ultra-high performance build, you might want to consider...
Thicker rads or those with a high FPI require fans rated for higher pressure to cool them effectively. A useful comparison chart of Rads is available to help you understand this, as it depends on fan pressure ratings and other factors.
And regarding 2 loops versus 1 IV, many people have shared varied opinions.
From my perspective, the second loop works best when the primary loop is excessively large (excessive head pressure) and the pump struggles to maintain an appropriate flow rate. In such cases, dividing the large loop into two segments and adding a second pump can help improve circulation. This approach might also be useful if your setup has divided sections, allowing you to remove a loop from the enclosed area away from the motherboard chamber. It enables heat extraction from the main compartment to a cooler zone for better exhaust and lower component temperatures.
When examining the chart I shared, it displays the flow limitations for each Rad. Greater restrictions mean increased demand on the pump, which may require a larger or auxiliary pump to handle the pressure. These limits become more pronounced as additional blocks or rads are incorporated. Using several low-flow units can lead to situations where a single pump becomes insufficient.
The goal here is to be able to run your selected pump(s) at a minimum flow of 1 gpm (gallon per minute).
Here's a great post on figuring out how much pump you should need:
http://www.overclock.net/t/1108918/what-...le-a-guide
Because thickness isn't a concern, consider exploring the advantages of push/pull configurations on rads. These setups incorporate fans on both sides, enhancing airflow while operating at reduced fan speeds (resulting in quieter performance).
I checked that, but the best options only allow a 40mm clearance. Fans are limited now, while the lower models can be as thick as desired or at least match the thickness of an ATX PSU.