Experimental radiator \build log!!!

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toolmaker_03

toolmaker_03

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Mar 26, 2012
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well here are the radiators, my problem is the configuration of them, simply too many possibilities, so if you could find the time to give your opinions, I would really appreciate it.
I also need advice on a type of shroud for the radiators, the purpose is to inshore good air flow through the radiator.
and lastly how to attach the fans to the radiators?



all advice is welcome and thank you

 
Solution
rubix_1011
I don't use a flow meter, never have, never will.

Having a picture of a flow meter does nothing to support a finding, especially when you cannot be 100% conclusive that it is reading correctly or you are accurately converting what is being reported. Does the flow meter registering on the pump without restriction show a flow rate that is close to the rated flow of the pump with your conversion?

If so, great, but if so, you're still running lower than 1.0 gpm on your loop, meaning your delta-T MUST be offset to calculate your cooling potential. Meaning - you have to over-rad to accomplish the same cooling ability that you could achieve with a higher flow. Adding cost of 3x 360 radiators ($60, example) starts to get expensive...
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Do you think maybe you're over thinking this thing?

How do you know with a parallel setup you're getting good flow through both cards?

With a series GPU setup if you're getting flow out of the second or third or fourth card in the lineup, you're getting good flow through all the cards.

With a parallel setup isn't it possible the first cross over gets the highest flow?

The first setup (or card water cross over), allows a pressure drop as the water has an early out, so how much pressure is left to force through the next card in the parallel setup?

Can you measure that?

When it comes to full coverage copper water blocks the faster the heat is removed the better!

Granted testing flow rate/ motor rpm speeds and temperature relation to the speed on a CPU loop, is convenient for best thermal performance, but for a full face copper GPU block the higher the water flowing through the block the better!

Especially if you have more than one GPU block to cool.

So what do you think about that?

Make sense to you or not?

GPU loops on fixed rpm pumps are cooled just fine, have you considered that?

Your problem is they gave you an rpm adjuster on your pump!

Bugs Bunny, "Hey buster, what cha looking for?"

Dog "Uh Rabbit!"

Bugs "Don't you find a Rabbit following Rabbit tracks?"

Dog "Uh Yep Yep, Rabbit tracks!"

Bugs "What tracks are those you're standing on?"

Dog "Uh Train tracks!"

Bugs "Well you must be looking for a Train then."

Dog "Uh Yep Yep a Train!"

Bugs "Well you're in luck! I saw one go into that tunnel if you hurry you can catch it!" :lol:

 
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Well pressure and flow are both necessary in a loop I think that what you are asking is if the flows or as you have stated, are the pressures the same on both cards? And my answer to that is yes, but as far as proof, the easiest way to show that will be by the temp of the cards, if one temp is way off the other, than that is a clear indication that the flows or pressures are off from one side to the other of the loop. That is the issue I had before, but not this time. I fixed that by balancing the loop, if that makes any since, but that is what is necessary for this type of configuration to work right, but I will be in more of a position to show this next week when I fire this rig up and start having fun with it.
 
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IF that was my build, I'd have removed the waterblocks cooling the SSD's. They're phenominal for the amount of power and speed they have however - they don't even dump heat into the system or on a loop for that matter!

More restriction, no noticeable heat change on SSD's or devices.
 
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Affirmative!

Newt_zps9c4abf85.png

 
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Ok Ry I have thought about your question a little more and I think I can explain it better this time in terms of flow rate. With if you look up the conversions online you will see the pressure and flow are conversions of each other meaning that you cannot have X flow without a certain amount of X pressure although you can have pressure without any flow. Regardless it does require so much pressure to equal a certain flow rate. So with that said let’s get to my explanation of the system.
I will start with a loop configuration of only one pump and two 360 radiators linked in parallel with each other. In this configuration the flow rate after leaving the radiators and recombining back into a single tube before the motor is 6700RPM meaning that this is the speed sustained by the motor on the loop after the loop has stabilized.
The max RPM that a loop with only one pump and one radiator can sustain is 4200RPM
The max RPM that a loop with only one pump and one GTX580 can sustain is 2200RPM
The max RPM that a loop with only one pump and two GTX580 in parallel is 4400RPM
I was hoping that by paralleling the radiators and cards together with one pump I would get close to 4400RPM total flow for the loop. I ended up with 3800RPM sustained with that loop and I do not think that, that is a bad thing; it turned out pretty good in my opinion. I hope this has helped defining all of the flows or pressures that are possible so far.
Ok so you asked how I know that the flows through both cards are the same? Well with the way that they are linked there is no way to get a measurement device in there to prove that they are equal, but what I can say to you is this. There is twice the flow going into the cards, that is possible to flow out of them, or there is twice the pressure needed going into the cards to insure that the flow through them is constant on both cards does that make sense.
 
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Told you, You were over thinking it! :)

How does RPMs translate to flow rate with a magnetically suspended impeller, any friction inside the pump would affect RPMs?

With the pump RPMs being electrically variably controlled how do you actually know the RPM rate?

The impeller is not directly attached to the pump shaft so RPMs are an assumption, the pump manufacturer claims with the numbered pump settings.

Wouldn't flow rate be directly related to line pressure as the more line pressure, obviously the more liquid flowing through the tubing.

Pressure is a predicted assumption you have no absolutes to calculate that.

So it really all boils down to the temperature of each card and the rest is totally irrelevant!

My advice to you is with all the pumps you feel you need, you'd better have some pumps shelved as backups!

I just lost an XSPC pump last Friday!

Always have a pump on hand as a backup!

 
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There is at least one more sequel planned, possible two. Apparently there was somewhat of a reason some of the holes existed, but much of it is conspiracy.

There are a ton of great breakdown videos on the web about the details of what took place in Prometheus as they compare to the original Alien franchise and some of the deleted scenes and extras from Prometheus itself.

http://www.youtube.com/watch?v=GpEx7pdp2-Q

 
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That was interesting?

http://www.youtube.com/watch?v=JLbcZggwVCw
 
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Well I am going to work on getting some shrouds and fans on the other side of my rads at this point in the build to help with air flow across them. The corsair SP fans are really quite so I will upgrade the rest of the fans on this system with them I like the construction and the performance that they provide.
 
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Ahhh, cablemanagement :)

best friend's are:
1| fabric tape
2| duct tape
3| cable ties
4| cabel tie mounts
5| wire looms
6| and if your case is a lian-li , you can pick up some DIY add on parts for that case.
http://www.frozencpu.com/cat/l2/g44/c34/list/p1/DIYMod_Parts-Wire_Management.html

The ways you can go about management are:
1| using the edge of the case or its lip to stick the ziptie mounts and ziptie away
2| bunch them up with a couple of big ties or loom or even with fabric tape

Honestly all you shots are between the two cases. I understand that the two cases are the money shot, however you haven't provided any images of the sides or the entire setup ... ? :??:
 
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