pump DIY Water cooling - Pump flow per hour

[Gawron10001]

Hey, I'am making myslef DIY water cooling system, not to cool my system, only to check if DIY can perform any well. And here is the question. How much flow per hour/minute should pump have? I know pumps have usualy 500L/h, but want to know, what is the minimum.  Can it be 3 or 2 liters per minute 180 / 120 per hour?

 

Anwsering eventual questions

-I have normal pump

-No, I won't use it because i want to do Whole DIY build

 

/Kacper

[samcool55]

Depends how many rads and blocks you have. Usually as long as the water flows completely through it's enough. Faster pump speed rarely results in lower temps.

[Gawron10001]

For processor and graphichs card. Okey, so i will test with 2L/ min, and find out if it is working out. Thanks!

 

[samcool55]

18 minutes ago, Gawron10001 said:

For processor and graphichs card. Okey, so i will test with 2L/ min, and find out if it is working out. Thanks!

 

My guess would be that 200-300l/hr would do the job. In the end it's how much pressure the pump creates and with how much force it pushes out the water. Of course for more pressure you need to turn up the power of the pump which results in a higher flowrate

[Gawron10001]

I thought the same, I'll go for 500 L/h pump. I think it will do the work

[SolarNova]

1 GPM , which is about 227 LPH is ur average target, anything above that has diminishing returns.

You dont really want to go below 0.5 GPM (114 LPH)

[Fakmykak]

On 4/20/2017 at 10:02 AM, samcool55 said:

Faster pump speed rarely results in lower temps.

False

[Bananasplit_00]

1 hour ago, Fakmykak said:

False

true from what i have seen, as long as its not super low its usually not much of a difference, if you have some actual numbers behind your very insightful retort id love to learn

[Fakmykak]

4 hours ago, Bananasplit_00 said:

true from what i have seen, as long as its not super low its usually not much of a difference, if you have some actual numbers behind your very insightful retort id love to learn

I own a H100i (a liquid cooler in case you did not know) and every time I set the pump to a higher speed my water temp drops 1c while Pc is idle.

I have literally changed my pump speed from quiet(1100RPM) to Extreme(3050 or so RPM) in the middle of a prime95 stress test, and I watched my CPU temps drop nearly 10c. 

And no, I am not about to re run all of my tests just to prove you wrong, regarding something quite obvious. 

How fast water is moving through a loop 100% affects temperatures....... 

[Enderman]

19 hours ago, Fakmykak said:

I own a H100i (a liquid cooler in case you did not know) and every time I set the pump to a higher speed my water temp drops 1c while Pc is idle.

I have literally changed my pump speed from quiet(1100RPM) to Extreme(3050 or so RPM) in the middle of a prime95 stress test, and I watched my CPU temps drop nearly 10c. 

And no, I am not about to re run all of my tests just to prove you wrong, regarding something quite obvious. 

How fast water is moving through a loop 100% affects temperatures....... 

That's because the pumps inside AIOs have extremely low flow rates. It's almost just a trickle of water. When dealing with proper watercooling pumps like a D5, the difference in flow rates makes almost no difference. The temperature dependance on flow rate decreases exponentially.