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schiaffo88

Newbie

high flow NEXT 0 l/h and different temp from D5 Next

Thursday, December 31st 2020, 7:28pm

Hello,
i just installed high flow NEXT and i have 2 problems:

1) the Flow meter shows 0 l / h up to 72% of the D5 i.e. 4118rpm and 21 l / h 100% D5 4826 rpm

2) the temperature sensor of the D5 is 26.6 while that of the Flow meter is 29.9.even under stress there are always 3/4 degrees of difference (differences are put in places but being a small circuit the difference cannot be that big. which one should I believe ??

my custom lloop is so formed. Tank> D5Next Pump> GPU (Water WB 3080)> Radiator> WB CPU> Hight Flow meter> Radiator> Tank
does anyone know how to help me with the 2 problems listed above?

This post has been edited 6 times, last edit by "schiaffo88" (Dec 31st 2020, 8:30pm)

Hufeisen

Senior Member

Friday, January 1st 2021, 1:32am

Your flow rate is too low.
The High Flow Next requires at least 35 l/h to measure accurate.

The low flow rate causes the temperature difference between the temp sensors.
The D5 Next measures the cold water, and the High Flow Next measures the warm water behind the CPU block.

schiaffo88

Newbie

Friday, January 1st 2021, 11:34am

thanks for the reply

- Should i add a second pump?

This post has been edited 5 times, last edit by "schiaffo88" (Jan 1st 2021, 11:47am)

k2viper

Full Member

Friday, January 1st 2021, 8:01pm

First check what adds that much restriction to your loop. It may be clogged waterblocks for example.

schiaffo88

Newbie

Friday, January 1st 2021, 8:28pm

at first glance from the plexiglass of the WB CPU / GPU I don't see anything, is there a way to understand if there is something blocking inside the radiators?

Hufeisen

Senior Member

Saturday, January 2nd 2021, 11:32pm

Maybe a Fitting is too long and screwed in too deep so it blocks the water flow...

schiaffo88

Newbie

Sunday, January 3rd 2021, 11:42am

I noticed that when I turn off the PC, a large air bubble comes back to me, between the Tank and the radiator on the radiator outlet and another air bubble between the flowmeter and the radiator at the inlet. So I'm sure there is an air bubble inside the radiator that can't get out.
the radiator is placed vertically with the inlet / outlet at the top, suggestions on how to get the air bubble out?

This post has been edited 1 times, last edit by "schiaffo88" (Jan 3rd 2021, 11:56am)