Flowrate vs Temp wise question....

[coalminer071]

Got a 900D. was wondering if having

A) 1 Alphacool Dual 120 UT60 + 1 Alphacool Quad 120 UT60 + 1 Alphacool Dual 120 ST30

B) 1 Alphacool Dual 120 UT60 + 1 Alphacool Quad 120 UT60

Im guessing theres better flowrate for the bottom one, is there a temp difference as well?

[Ghost]

Radiators are designed to have as little restriction as possible. Adding a block causes much more restriction compared to a radiator, so you will have better temps with the triple rad set-up, although I recommend using 240/360 rads to save money and have cleaner tubing.

 

With a powerful pump like a Laing D5 or a Laing DDC an extra 120mm radiator really won't change much in terms of flow rate, and the flow rate is so high anyway, that a decrease wouldn't make much difference to the temps.

[Leonard]

Got a 900D. was wondering if having

A) 1 Alphacool Dual 120 UT60 + 1 Alphacool Quad 120 UT60 + 1 Alphacool Dual 120 ST30

B) 1 Alphacool Dual 120 UT60 + 1 Alphacool Quad 120 UT60

Im guessing theres better flowrate for the bottom one, is there a temp difference as well?

Welcome guy,

 

the flow rate is mostly dependent on the pumps quality, what type of blocks and fittings the loop has. Qucik disconnects and mosfet blocks are very restrictive and while GPU block can be restrictive too it is mostly the SLI configurations that have high restriction. Radiators tend to be non-restrictive unless there is a blockage of some kind in the radiator, either a bad weld, too much flux or some other factor.

[coalminer071]

so a bad flowrate would be due to having xspc 780 blocks running in series? using a D5 pump. I thought the rad due to having 30mm depth would be the restrictive one.

[Ghost]

so a bad flowrate would be due to having xspc 780 blocks running in series? using a D5 pump. I thought the rad due to having 30mm depth would be the restrictive one.

A D5 is more than capable of handling 3 blocks and 3 rads.

[Shaqo_Wyn]

Got a 900D. was wondering if having

A) 1 Alphacool Dual 120 UT60 + 1 Alphacool Quad 120 UT60 + 1 Alphacool Dual 120 ST30

B) 1 Alphacool Dual 120 UT60 + 1 Alphacool Quad 120 UT60

Im guessing theres better flowrate for the bottom one, is there a temp difference as well?

Alphacool rads have some of the lowest flow restrictions on the market so I wouldn't worry much about that. As others have set, waterblocks, tubing, fititngs etc. are what usually have more restrictions. 

 

Have you thought about doing one of these setups?

 

#1: top Quad 120 UT60 + bottom Quad 120 UT60 (no need for push/pull just push with NF-F12's or Eloops)

 

#2: top Quad 120 UT60 + bottom Quad 120 UT60 + front Dual 120 ST30 (no need for push/pull)

[cluelessgenius]

A D5 is more than capable of handling 3 blocks and 3 rads.

actually now i got a question how much can the d5 handle when would it be neccessary to get a second d5? lets say 1 cpu block 2 gpu blocks 1 240 rad 1 360 rad and 2 passive towers of 60cm (reserator 1) connected using 3 quick disconnects. 

[Ghost]

actually now i got a question how much can the d5 handle when would it be neccessary to get a second d5? lets say 1 cpu block 2 gpu blocks 1 240 rad 1 360 rad and 2 passive towers of 60cm (reserator 1) connected using 3 quick disconnects. 

I personally use a GPU, CPU, VRM block and a 3*360 external rad with 2 QDCs and can run my pump on setting 3 with absolutely no flow issues. I don't see why anyone would choose your proposed set-up.

 

Here's some reading if you're really interested in the specs of the pump: http://documentlibrary.xylemappliedwater.com/wp-content/blogs.dir/22/files/2012/09/ecocircd5solar-ed-en.pdf http://documentlibrary.xylemappliedwater.com/wp-content/blogs.dir/22/files/2012/09/ecocircd5vario-ed-en.pdf

 

As others have set, waterblocks, tubing, fititngs etc. are what usually have more restrictions. 

Tubing and fittings don't have much of an effect on flow rate either, (If you're reasonable with your selection of tubing/fittings)

[cluelessgenius]

I personally use a GPU, CPU, VRM block and a 3*360 external rad with 2 QDCs and can run my pump on setting 3 with absolutely no flow issues. I don't see why anyone would choose your proposed set-up.

well i was hoping to have the 240 and 360 in case i want to move it to a friends house or something and the two towers to connect it while at home and hopefully be able to turn the fans off completely

[Ghost]

well i was hoping to have the 240 and 360 in case i want to move it to a friends house or something and the two towers to connect it while at home and hopefully be able to turn the fans off completely

You need to cool passive components such as ram,vrm and the psu in your system with minimal airflow, so turning all your fans off would be a bad idea, I would say you would be getting to the territory where having two pumps wouldn't be considered ridiculous, however, a single pump, especially at higher settings should be able to handle it.

[cluelessgenius]

You need to cool passive components such as ram,vrm and the psu in your system with minimal airflow, so turning all your fans off would be a bad idea, I would say you would be getting to the territory where having two pumps wouldn't be considered ridiculous, however, a single pump, especially at higher settings should be able to handle it.

ok so maybe leaving the front 3 fans on the 360 at really low would be enough? also i plan a d5 but would it be loud? i heard about people complaining. would two pump at low speeds be quieter than one at high speeds? also im going for the aqua computer d5 with aqua bus. to my understanding it allow me to control them software wise?

[Ghost]

ok so maybe leaving the front 3 fans on the 360 at really low would be enough? also i plan a d5 but would it be loud? i heard about people complaining. would two pump at low speeds be quieter than one at high speeds? also im going for the aqua computer d5 with aqua bus. to my understanding it allow me to control them software wise?

You can control any PWM D5 with your motherboard, and yes that would probably be enough. One pump should be fine for your needs. The aquacomupter D5 can be controlled by the aquabus, yes.

[coalminer071]

a wider radiator pumping fluid into a radiator half its size in diameter wont cause flow rate to decrease more so than a tri sli wb?

Radiators are designed to have as little restriction as possible. Adding a block causes much more restriction compared to a radiator, so you will have better temps with the triple rad set-up, although I recommend using 240/360 rads to save money and have cleaner tubing.

 

With a powerful pump like a Laing D5 or a Laing DDC an extra 120mm radiator really won't change much in terms of flow rate, and the flow rate is so high anyway, that a decrease wouldn't make much difference to the temps.