How to do this GPU loop run?

[coalminer071]

This is my current systems look.

https://scontent-a-lax.xx.fbcdn.net/hphotos-xpa1/v/t1.0-9/9390_10203614971673929_1390164363_n.jpg?oh=09e73f68c37956c7e0ffc3e4c2c6c6fc&oe=5434A6C8

However, this gpu loop is giving me trouble. When i do have it on it seems to turn quite slow. the flowmeter is not digital so dont have a flow reading.
The loop goes from Rez/Pump/Flowmeter/GPU/Quad rad/Dual rad right behind the quad/ up to another dual at the front and then back to the rez.
This is my first time using acrylic and watercooling so the setup isnt that nice looking hehe. 

Im planning to put the Gpus into parallel in a month. any suggestions to increase the flowrate would be nice.

the hottest gpu doesnt go over low 40s under heaven.

[wng_kingsley7]

@coalminer071 What GPU's in quad trip sli have you installed? Maybe the flow is so slow due to the about of components within your build. How fast is your pump running? I'm unable to tell whether you're loop is full of liquid.

[Jodomcfrodo]

What pump is it?

[Shaqo_Wyn]

This is my current systems look.

https://scontent-a-lax.xx.fbcdn.net/hphotos-xpa1/v/t1.0-9/9390_10203614971673929_1390164363_n.jpg?oh=09e73f68c37956c7e0ffc3e4c2c6c6fc&oe=5434A6C8

However, this gpu loop is giving me trouble. When i do have it on it seems to turn quite slow. the flowmeter is not digital so dont have a flow reading.

The loop goes from Rez/Pump/Flowmeter/GPU/Quad rad/Dual rad right behind the quad/ up to another dual at the front and then back to the rez.

This is my first time using acrylic and watercooling so the setup isnt that nice looking hehe. 

Im planning to put the Gpus into parallel in a month. any suggestions to increase the flowrate would be nice.

the hottest gpu doesnt go over low 40s under heaven.

Is it possible that you don't have a problem at all? If you had a really crappy flow-rate, you'd see some indication of it in your temps. Those look like D5's so they should have you covered.

[D3LTA9]

What are you concerned about if your temps dont go over 40? I wouldnt bother look into flow rate or anything like that unless you are experiencing high temps 

[coalminer071]

@coalminer071 What GPU's in quad trip sli have you installed? Maybe the flow is so slow due to the about of components within your build. How fast is your pump running? I'm unable to tell whether you're loop is full of liquid.

they are the xspc razor titan blocks on 780 card. i think i made the runs too long. the pump is on at least 3 or 4 but the flow remains the same. the loop is liquidless right now.

 

What pump is it?

D5 but i have it upside down so i can attach it to drive bay.

 

Is it possible that you don't have a problem at all? If you had a really crappy flow-rate, you'd see some indication of it in your temps. Those look like D5's so they should have you covered.

I wasnt gonna bother with it but one of the pipes started having a leak after a couple months of use. I suspect it could be too restrictive and im putting too much pressure within the system and on the pump.

 

What are you concerned about if your temps dont go over 40? I wouldnt bother look into flow rate or anything like that unless you are experiencing high temps 

The pipe in the lower rad section did crack right in the middle. could be due to my heat error or could be too much pressure? btw im using primochil rigid 3/8 by 1/2 tubing

[D3LTA9]

ah I see. I am not familiar with rigid tubing as I only use it to link my gpu's but I wouldnt have thought pressure build up could crack it, like you would need some serious pumping power and even then I am not sure. Would think it was more likely caused when heating/bending the tubes and/or due to stress on it from other components if the angle is a bit off.

 

Sorry cant be much more help. System looks mint though definitely like the rigid tubing! would look at it myself if I wasnt so lazy/constantly changing my loop around. 

[coalminer071]

If anyone would be able to rerun this loop in the most optimal way. That would be perfect

[Shaqo_Wyn]

I wasnt gonna bother with it but one of the pipes started having a leak after a couple months of use. I suspect it could be too restrictive and im putting too much pressure within the system and on the pump.

Nah I don't think it's too much pressure or anything like that. I haven't used hard tubing but the bend coming off the top of the GPU looks kind of uncomfortable IMO. Maybe get a parallel EK block for the GPU's and use a few 90 degree fittings with some straight tubing runs for the top of the GPU if your goal is just better flow. Again with 40 degree temps under heaven I don't think you have a problem.

[coalminer071]

Nah I don't think it's too much pressure or anything like that. I haven't used hard tubing but the bend coming off the top of the GPU looks kind of uncomfortable IMO. Maybe get a parallel EK block for the GPU's and use a few 90 degree fittings with some straight tubing runs for the top of the GPU if your goal is just better flow. Again with 40 degree temps under heaven I don't think you have a problem.

thats actually going into the gpu at the top hehe

[Leonard]

This is my current systems look.

https://scontent-a-lax.xx.fbcdn.net/hphotos-xpa1/v/t1.0-9/9390_10203614971673929_1390164363_n.jpg?oh=09e73f68c37956c7e0ffc3e4c2c6c6fc&oe=5434A6C8

However, this gpu loop is giving me trouble. When i do have it on it seems to turn quite slow. the flowmeter is not digital so dont have a flow reading.

The loop goes from Rez/Pump/Flowmeter/GPU/Quad rad/Dual rad right behind the quad/ up to another dual at the front and then back to the rez.

This is my first time using acrylic and watercooling so the setup isnt that nice looking hehe. 

Im planning to put the Gpus into parallel in a month. any suggestions to increase the flowrate would be nice.

the hottest gpu doesnt go over low 40s under heaven.

The slowness would be due to the different restrictive blocks you have. Mosfet, GPU and more so SLI connectors are restrictive and you have two of them but i wouldn't worry because the temperatures are fine, low 40s on load are some GPUs idle temperatures on air. The GPU run you have looks good, i wouldn't change it.

[coalminer071]

The slowness would be due to the different restrictive blocks you have. Mosfet, GPU and more so SLI connectors are restrictive and you have two of them but i wouldn't worry because the temperatures are fine, low 40s on load are some GPUs idle temperatures on air. The GPU run you have looks good, i wouldn't change it.

i got 3 gpu blocks and 3 rads on that loop. is putting it into parallel bad for my case?

[Leonard]

i got 3 gpu blocks and 3 rads on that loop. is putting it into parallel bad for my case?

radiators are not known to be restrictive in fact they are quite free flowing so that is not where the problem is coming from. Really and truly, you don't need to worry your temperatures are fine IMO and your runs look good too.

 

Going from series to parallel won't make much of a big difference for cooling but air bubbles tend to get stuck in the SLI connectors easier.

 

You could add another pump or maybe even separate your loop into two loops, maybe do like CPU and mosfet in one loop and GPU in the other.

[coalminer071]

radiators are not known to be restrictive in fact they are quite free flowing so that is not where the problem is coming from. Really and truly, you don't need to worry your temperatures are fine IMO and your runs look good too.

 

Going from series to parallel won't make much of a big difference for cooling but air bubbles tend to get stuck in the SLI connectors easier.

 

You could add another pump or maybe even separate your loop into two loops, maybe do like CPU and mosfet in one loop and GPU in the other.

I dont know if i specified but my system is running a dual loop.

[Leonard]

I dont know if i specified but my system is running a dual loop.

Well then this is just your loop characteristics. You have nothing to worry about though because low 40s under load is really good and if it were me i would see how far i could OC the GPUs.

[coalminer071]

Well then this is just your loop characteristics. You have nothing to worry about though because low 40s under load is really good and if it were me i would see how far i could OC the GPUs.

stock voltage is around 1.2ghz  core and 7ghz on memory. if i remember correctly.~ out of country right now

[Leonard]

stock voltage is around 1.2ghz  core and 7ghz on memory. if i remember correctly.~ out of country right now

Check out Jayztwocents dual loop called Skunkworks. I think if you want better temperatures you may benefit from a configuration like that. Also, you will note that he too has two D5 pumps and the flow on the GPU loop is slower that the flow on the CPU loop and that is just how restrictive GPU blocks and the SLI fittings are. You have further introduced mosfet blocks which further add restrictiveness but as i said you temperatures are really good to me.

[coalminer071]

Check out Jayztwocents dual loop called Skunkworks. I think if you want better temperatures you may benefit from a configuration like that. Also, you will note that he too has two D5 pumps and the flow on the GPU loop is slower that the flow on the CPU loop and that is just how restrictive GPU blocks and the SLI fittings are. You have further introduced mosfet blocks which further add restrictiveness but as i said you temperatures are really good to me.

on my dual loop, mosfest and cpu are on 1 loop. gpus are on a seperate loop

[Leonard]

on my dual loop, mosfest and cpu are on 1 loop. gpus are on a seperate loop

Right so it is the same as Jayz's and if you noticed on his GPU loop the coolant was slower than the CPU loop so your's is just right IMO.

 

I want to do rigid tubes but the concept of the rigid fitting just boggles my mind and i wuss out.

[coalminer071]

Right so it is the same as Jayz's and if you noticed on his GPU loop the coolant was slower than the CPU loop so your's is just right IMO.

 

I want to do rigid tubes but the concept of the rigid fitting just boggles my mind and i wuss out.

i do remember that one of his pumps are bad. i forgot if it was skunkworks or his other projects.

[Leonard]

i do remember that one of his pumps are bad. i forgot if it was skunkworks or his other projects.

The one with the bad pump was one of his other projects. Skunkworks is his new build just completed last month, it is a yellow and black themed rig.