Further reflections on watercooling: Difference between revisions

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* Adding more power increases flow rates more as the total power level increases. I.e. going to 50% from 25% PWM adds less flow than going from 75% to 100%. This is contrary to my intuition.

And one final, probably controversial point, from my own experiments: '''~~modern~~ waterblocks are very effective even at low flow rates'''. According to my two sensors, I have never managed to exceed 1L/min in my loop, even when using two D5 pumps. My loop is quite large, and climbs over a meter through the height of my very large case, but this still seems a lower flow rate than one might expect from two D5 pumps (admittedly at low power settings). Common hearsay is that one wants at least 0.5G/min (1.9L/min); I rarely manage even half of this. Regardless, my temperatures are excellent, both when measured absolutely at the heat generating sources and when the coolant is measured relative to ambient. Optimizing for flow seems a foolish errand, and ought be of only secondary concern when designing a loop.

And one final, probably controversial point, from my own experiments: '''quality waterblocks are very effective even at low flow rates'''. According to my two sensors, I have never managed to exceed 1L/min in my loop, even when using two D5 pumps. My loop is quite large, and climbs over a meter through the height of my very large case, but this still seems a lower flow rate than one might expect from two D5 pumps (admittedly at low power settings). Common hearsay is that one wants at least 0.5G/min (1.9L/min); I rarely manage even half of this. Regardless, my temperatures are excellent, both when measured absolutely at the heat generating sources and when the coolant is measured relative to ambient. Optimizing for flow seems a foolish errand, and ought be of only secondary concern when designing a loop.

'''previously: "[[Reflections_on_watercooling|reflections on watercooling]]" 2022-04-17'''

[[Category:Blog]]

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 * Adding more power increases flow rates more as the total power level increases. I.e. going to 50% from 25% PWM adds less flow than going from 75% to 100%. This is contrary to my intuition.
-And one final, probably controversial point, from my own experiments: '''modern waterblocks are very effective even at low flow rates'''. According to my two sensors, I have never managed to exceed 1L/min in my loop, even when using two D5 pumps. My loop is quite large, and climbs over a meter through the height of my very large case, but this still seems a lower flow rate than one might expect from two D5 pumps (admittedly at low power settings). Common hearsay is that one wants at least 0.5G/min (1.9L/min); I rarely manage even half of this. Regardless, my temperatures are excellent, both when measured absolutely at the heat generating sources and when the coolant is measured relative to ambient. Optimizing for flow seems a foolish errand, and ought be of only secondary concern when designing a loop.
+And one final, probably controversial point, from my own experiments: '''quality waterblocks are very effective even at low flow rates'''. According to my two sensors, I have never managed to exceed 1L/min in my loop, even when using two D5 pumps. My loop is quite large, and climbs over a meter through the height of my very large case, but this still seems a lower flow rate than one might expect from two D5 pumps (admittedly at low power settings). Common hearsay is that one wants at least 0.5G/min (1.9L/min); I rarely manage even half of this. Regardless, my temperatures are excellent, both when measured absolutely at the heat generating sources and when the coolant is measured relative to ambient. Optimizing for flow seems a foolish errand, and ought be of only secondary concern when designing a loop.
 '''previously: "[[Reflections_on_watercooling|reflections on watercooling]]" 2022-04-17'''
 [[Category:Blog]]

Further reflections on watercooling: Difference between revisions

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