Where Do I Connect My Water Block Pump And Fans

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WeylandUtani

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May 15, 2014
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Hi Everybody.

I am trying to figure out how to arrange and power my Cooler Master Eisberg 240L Prestige 60.2 CFM Liquid CPU Cooler and fans. My motherboard is the Asus Sabertooth X79 ATX LGA2011.

I currently have the radiator for the Eisberg cooler attached to the top of my case. The (mostly unintelligible) installation leaflet seems to be recommending that I attach two 140mm fans below the radiator to blow air up through it out the top. But there isn't room underneath the radiator to attach the fans because of the water tubes and memory sticks beneath it and because of the video card radiator and fan in the back (the video card is this insane Radeon 295x2 thing that spans the full length of my case and has integrated closed loop water cooling for its two GPUs).

I think this is okay and I plan to instead attach two 200mm fans on top of the radiator to pull air up through it. There are lots of fans all over the place so it seems like air should be circulating through the case well enough (lower front intake, top and back exhaust).

I actually have four questions:

1) Does that sound okay to you? Will the CPU radiator overheat?

no room for cpu radiator fans below radiator

no room for cpu radiator fans below radiator.jpg


2) Where do I connect the power plug for the Eisberg cooler water block pump? It has a 3 hole female connector. The fan headers on my mobo (Asus Sabertooth X79 ATX LGA2011) all seem to have 4 pins. Then there is this mysterious unlabeled header near the CPU fan header that has 3 pins and seems to fit the Eisberg pump plug. Actually it is labeled but the label is a bunch of weird numbers and letters like "P0133 PO200..." or something. I tried plugging the pump in there but it makes me nervous and I think it's wrong. I have not plugged in the power supply or tried powering on the system yet.

3 hole water pump power connector.jpg

3 hole water pump power connector.jpg



4 pin fan headers and mysterious 3 pin header

4 pin fan headers and mysterious 3 pin header.jpg



water pump plugged into mysterious 3 pin header

water pump plugged into mysterious 3 pin header.jpg



3) What should I plug into the CPU Fan header? Will the mobo work if nothing is plugged in there? I was thinking of plugging in one of the 200mm top fans there and calling that one the "cpu fan". Does that sound okay? My case also has a big "fan hub" in back behind the mobo mounting area with 3-pin connections for like 8 or 10 fans and a throttle switch on the front of the case that controls the speed of all 8 or 10 of them. I could also plug the top fans in there and control them from the switch (probably I would just keep them always on then since they are effectively the CPU fans).

4) Even if I go with my first idea of plugging one top fan into the cpu fan header, the plug doesn't fit. I got four extra fans to attach in various places around the case and they all have 3-hole female power connectors, like the pump plug. Why does the header labeled "CPU Fan" have 4 pins? Other fan plugs on the mobo also have 4 pins. But all the headers on the fan hub on the case have the expected 3 pins. I'm a total noob and this is my first build so maybe I am missing something obvious. How do I plug 3-hole female fan power connectors into my motherboard?

Many thanks!
 
Solution
R
Here goes:

1) Attach two 120mm fans to the top of the radiator (In between it and the case) this makes the radiator easy to clean by vacuuming the bottom of the fins. This will be a much better solution than trying to pull air through the radiator with the 200mm fans

2) Plug the 3pin female connector on the Eisberg into the CPU header on the motherboard. This allows the pump to adjust its speeds according to the CPU temp

3) Same as 2

4) The fourth pin may be for an added level of control, don't worry about it the 3 pin female header on the Eisberg will work fine.

I would also advise another intake (Or two!) for the case, this is because generally you want negative pressure inside the case. This means there are more intakes than...
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randomhkkid

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Apr 18, 2012
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Here goes:

1) Attach two 120mm fans to the top of the radiator (In between it and the case) this makes the radiator easy to clean by vacuuming the bottom of the fins. This will be a much better solution than trying to pull air through the radiator with the 200mm fans

2) Plug the 3pin female connector on the Eisberg into the CPU header on the motherboard. This allows the pump to adjust its speeds according to the CPU temp

3) Same as 2

4) The fourth pin may be for an added level of control, don't worry about it the 3 pin female header on the Eisberg will work fine.

I would also advise another intake (Or two!) for the case, this is because generally you want negative pressure inside the case. This means there are more intakes than exhausts so that as long as the intakes are filtered there should be less dust inside the case as air will blow out all the gaps in the case.

Also did you build this computer yourself? It is extremely beastly and I'm very jealous :p
 
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Solution
lowriderflow

lowriderflow

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Jul 5, 2010
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you didn't plan that one out very well :)

do you have anywhere else to mount hte 295x2 120mm rad? does your case have a side panel/window mount? you could mount it as exhaust there... with the eisenburg up top and the rear fan aset as intake to blow into it
 
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randomhkkid

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Apr 18, 2012
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There shouldn't be any need for an extra pair of fans on the Eisberg unless his CPU is running too hot. It already has a set of pre-attached 120mm which he should just screw into the top of his case.
 
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WeylandUtani

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May 15, 2014
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Ok thanks for the replies I will just connect the 3-hole power plugs with the the 4 pin headers and not worry about it.

You're probably right about bad radiator placement.

The case is a NZXT Phantom 530 and it does have a side vent. I think it has mounts that I can stick the video card radiator on so I will try that.

I'm still not sure that will give me enough room up above to install the CPU radiator fans the way it shows in the Eisberg instructions though. If not I am now thinking:

- Mount fans above top radiator at top of case, blowing DOWN into the case into the radiator as a top intake.
- Remount rear fan that I previously removed to put the Radeon radiator and point it out of the back of the case as an exhaust fan for the top radiator.
- Mount the Radeon radiator on the side with its fan blowing into it, through it, out the side of the case.
- The intake for that one will be the preinstalled big fan in the front of the case.

Sound better? It's a little weird since there are then kind of two different air streams, one in the front and out the side, one in the top and out the back, but that's probably better than trying to pull air up through the top radiator, right?
 
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WeylandUtani

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May 15, 2014
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It's also a little weird since then I would be blowing air down from above the case, through the CPU cooler radiator, blowing the radiator's heat back onto the CPU water block, the thing I'm trying to cool in the first place. Maybe that's not really significant compared to keeping the air flowing past the radiator filaments though?
 
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randomhkkid

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Apr 18, 2012
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I'm slightly confused now, whats preventing you from attaching the Eisberg with the fans already on it to the top of the case. Generally you want the top fans as exhaust pulling air through the bottom of the radiator, this is because it will go with the fact that heat naturally rises. You don't actually have to have a second set of fans to push air through unless your CPU is getting too hot. Therefore there is no need to relocate the GPU radiator.
 
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WeylandUtani

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May 15, 2014
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>> whats preventing you from attaching the Eisberg with the fans already on it to the top of the case

I can't get the radiator up there without unhooking the tubes to rethread them up through the holes in the top and I don't want to unhook them because then I have to deal with the fluid and possibly draining and refilling it, which sounds too intimidating.

It turns out I can't really mount the Radeon radiator on the side vent either since the mounting holes were not accessible from the outside - it would only work for attaching a fan from inside.

I went with this configuration:

- Radeon radiator and fan exhausting out the back.

- Two big fans intaking in through the big CPU cooler radiator on top.

- One more big intake fan in front.

It's not much. I hope it stays cool enough. I'm still installing games and dealing with monitor cable issues so I haven't been able to test it under load. It's running icy cool during non gaming use of course.

Your answer would have been right if I had the guts to take apart the water cooler, so I'll mark it as the solution.
 
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