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post #74301 of 106461
Quote:
Originally Posted by LeSwede View Post

Random question for the pros, should I have the RAD before or after the CPU block?

Parts

RAD: Alphacool NexXxoS ST30 Full copper 360mm

Block: Alphacool NexXxoS XP3 Acetal Intel/AMD CPU

Pump: Pump, EK-DCP 2.2 (12V DC)

Res: Reservoar EK-RES X3 250

Coolant: EK-Ekoolant Blood Red- 1000 ml
Loop order doesn't make a difference in performance as water temperature equalizes throughout the entire loop over time. The only thing that matters is that the pump is directly after the reservoir
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post #74302 of 106461
Quote:
Originally Posted by geggeg View Post

I am not sure running the Mo.Ra's in parallel is a great idea to be honest, each Mo.Ra further splits flow in parallel 4 ways inside and is very restrictive with the 20-ish turns inside. So the flowrate inside the Mo.Ra will be pretty low this way.


It was precisely because the MORA is so restrictive, that I suggested he run them in parallel . . . can you imagine the restriction that 2 of them in series must be.

Splitting the flow just means a given molecule of coolant spends twice as long in 1 rad as it otherwise would going thru each of the 2 of them if seriesed.

The cooling capability should be close to equal, and the lower overall restriction should put the D5 pump in a sweeter region of the curve.

I also suggested the flow meter so that he could try it both ways, and decide between them based on actual flow numbers, not a WAG.


Darlene
Edited by IT Diva - 10/17/14 at 1:00pm
post #74303 of 106461
Right, but the D5 isn't really great with a single Mo.Ra either. All the split flow and I wonder if the flow will be turbulent at all. That would be interesting to see, I can do a quick Reynolds number calculation.
post #74304 of 106461
Quote:
Originally Posted by morencyam View Post

Loop order doesn't make a difference in performance as water temperature equalizes throughout the entire loop over time. The only thing that matters is that the pump is directly after the reservoir

Quote:
Originally Posted by Gabrielzm View Post

Makes no difference. The only constant is to have the reservoir just before the pump. Besides that loop order makes no difference except to try to make the shortest path between components.

Thanks peeps biggrin.gif Res before pump is kinda obvious as it would not end well for the pump if it runs out of liquid tongue.gif
post #74305 of 106461
Thread Starter 
Quote:
Originally Posted by morencyam View Post

Quote:
Originally Posted by LeSwede View Post

Random question for the pros, should I have the RAD before or after the CPU block?

Parts

RAD: Alphacool NexXxoS ST30 Full copper 360mm

Block: Alphacool NexXxoS XP3 Acetal Intel/AMD CPU

Pump: Pump, EK-DCP 2.2 (12V DC)

Res: Reservoar EK-RES X3 250

Coolant: EK-Ekoolant Blood Red- 1000 ml
Loop order doesn't make a difference in performance as water temperature equalizes throughout the entire loop over time. The only thing that matters is that the pump is directly after the reservoir


Yeah.....about that......
Erm.....well.....you dont have to have it in front you know.....if you can guarantee the pump is lubed and there is water to pull then its doable.

Not advised tho. But I have been dicking around with odd bits and bobs recently to get around some space concerns with LUMO
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post #74306 of 106461
I too have space concerns to deal with. So my Res is getting mounted further out from the pumps. Pumps up front, Res in the back. Still before the Pump Units though. Should work just fine. thumbsupsmiley.png
Quote:
Originally Posted by LaBestiaHumana View Post

Quote:
Originally Posted by IT Diva View Post

Shouldn't there be more space between fans to test them in push pull? Otherwise they will basically only perform as good as the front fan? Tiny Tom Logan only got a 2 degree difference by stacking 40 fans on a h100i.


That's because there is a point of diminishing return with airflow thru the rad . . . and the thinner the rad, the sooner you reach it, . . . all else being equal.

That's also irrelevant, as I think you are not visualizing the test setup correctly.

Warning: Spoiler! (Click to show)
[/
quote]


The PP fans are one on each side of the rad . . . where you see 2 fans on one side, the inner one is the passive fan being used to measure the airflow.

The Silverstones are white, so where there's a single white fan on one side, the other side fan is the passive one . . actually, the passive one is the one on the left against the rad in all those pics.

Darlene

That's exactly what I mean, they are so close together, that the second fan kinda cancels itself out, so it will perform almost like a single fan.

When I had my first WC'ing kit(AIO) I intentionally borked the stock fan and removed the supports and fan from it to create a shroud. Worked like a charm. Because I did that prior to installation, I couldn't tell you the before and after but I think that it worked reasonably well. Although my H50 did take up quite a bit of real estate in my 5.25 bay. Couldn't use the upper 3 bays because of my push pull setup. thumb.gif

~Ceadder smil3dbd4e4c2e742.gif
Edited by Ceadderman - 10/17/14 at 1:20pm
 
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post #74307 of 106461
Quote:
Originally Posted by Nichismo View Post

yeah, its the molex thats impeding it.

I have an Aquaero 6 XT and I have every channel hooked up through 3 pin female to female cables, which are connected to Modmytoys PCBs. They work fantastic, total control.

Okay thanks for the help, might get a better controller before dumping that sort of start up load on a phobya haha. Unfortunately selection in Australia is fairly limited for high tier niche products so I'll most likely be going international for an aquaero.
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post #74308 of 106461
Quote:
Originally Posted by geggeg View Post

Right, but the D5 isn't really great with a single Mo.Ra either. All the split flow and I wonder if the flow will be turbulent at all. That would be interesting to see, I can do a quick Reynolds number calculation.

I'm not sure you ever get turbulent flow in a "made for PC watercooling" round tube rad.

Running them both ways with a flow meter to see the total flow rate, which is what the rest of the loop is going to depend on, would seem to me to be a no-brainer.

He's got the MORAs on his GPU loop . . . 4X 290Xs with the semi parallel bridge.

He's going to want the best flow rate he can get, as it will be halved for each GPU block.

There's enough rad space that he can trade a bit of thermal efficiency for higher flow rate, if that's what it came down to.


Darlene


Come to think of it, he has dual D5's on that loop.
Edited by IT Diva - 10/17/14 at 1:50pm
post #74309 of 106461
Quote:
Originally Posted by LeSwede View Post

Random question for the pros, should I have the RAD before or after the CPU block?

Parts

RAD: Alphacool NexXxoS ST30 Full copper 360mm

Block: Alphacool NexXxoS XP3 Acetal Intel/AMD CPU

Pump: Pump, EK-DCP 2.2 (12V DC)

Res: Reservoar EK-RES X3 250

Coolant: EK-Ekoolant Blood Red- 1000 ml

Literally doesn't matter. As stated above, the only real rule to follow is res before pump. Shortest/cleanest path is your #1 priority.
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post #74310 of 106461
Anyone well versed in dual bay D5 5.25" reservoirs? I think I'm in the market for one on my Corsair 350D Folding Rig build. The Primochill ones look to fit the bill but I haven't ever seen anyone use one.
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