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Rad fan wiring help needed

post #1 of 12
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Made my last order and thought I covered everything but of course forgot one thing - the wiring for the fans on the rads. I'm using a 480 Alphacool UT60 in push/pull in the top of my case and a 240 Alphacool XT45 in push at the bottom. Looking for suggestions on how to wire the fans to my Aquaero 5. I'm leaning towards just buying two 4 way splitter cables for the top rad and then attaching them to a Y cable to the Aquaero. I'll need to just make sure that I only have one RPM signal going to the Aquearo. For the bottom rad I'm just going to run one Y cable straight to the Aquaero. Does this make sense? Anything I'm missing? Any cleaner ways to do this without going the sleaving route?
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post #2 of 12
Quote:
Originally Posted by bern43 View Post

Made my last order and thought I covered everything but of course forgot one thing - the wiring for the fans on the rads. I'm using a 480 Alphacool UT60 in push/pull in the top of my case and a 240 Alphacool XT45 in push at the bottom. Looking for suggestions on how to wire the fans to my Aquaero 5. I'm leaning towards just buying two 4 way splitter cables for the top rad and then attaching them to a Y cable to the Aquaero. I'll need to just make sure that I only have one RPM signal going to the Aquearo. For the bottom rad I'm just going to run one Y cable straight to the Aquaero. Does this make sense? Anything I'm missing? Any cleaner ways to do this without going the sleaving route?


You can either do it like you are suggesting, via splitters (of whatever amount/size you want), or you can use fan hub PCB's. I find the latter to be more clean looking in the end. I also find them easier to deal with, because who likes dealing with 4-8 way y splitters for fans? Especially if you are making them yourself. tongue.gif You are correct in your assumptions about the 1 rpm wire per channel. All of it does make sense, but if you are anything like me, "seeing" it would help more. Toss up a diagram if you want, and I'll look it over and make sure all is well. I'm an electrician, so this "should" be what I'm good at hehe. I also have a few diagrams already myself of how I did my wiring (for 480mm UT60 rad as well) with 8 fans using a PCB fan hub into my fan controller. I can toss them up here for you if you like, same concept as what you are trying to do. thumb.gif
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post #3 of 12
Make sure the Aquaero can handle having all 8 fans on one channel. May want to go in groups of 4 for them, unsure on what fans you have, their startup amps (More important since it is a spike in draw), and how much your Aquaero puts out.

I went with http://www.amazon.com/gp/product/B000E9ZQBU/ref=oh_details_o00_s00_i00 myself and just chained them together.
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post #4 of 12
Quote:
Originally Posted by teamrushpntball View Post

Make sure the Aquaero can handle having all 8 fans on one channel. May want to go in groups of 4 for them, unsure on what fans you have, their startup amps (More important since it is a spike in draw), and how much your Aquaero puts out.
I went with http://www.amazon.com/gp/product/B000E9ZQBU/ref=oh_details_o00_s00_i00 myself and just chained them together.


I think he already mentioned doing 4 per, but solid advice nonetheless. You most definitely do not want to burn out such an expensive unit. tongue.gif And yes, knowing which fans would help tremendously, I don't know why I didn't ask for that information. I really should get my coffee fix before trying to help people. tongue.gif Good call there teamrushpntball. thumb.gif


By the way, here are the fan hub PCB's I was mentioning (and apparently forgot to link in my post above): Fan Hub Splitter.
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post #5 of 12
I think he said using two 4 ways then a y-splitter. Probably a lot to ask out of a hub, and yeah a pcb splitter would likely be best.
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post #6 of 12
Quote:
Originally Posted by teamrushpntball View Post

I think he said using two 4 ways then a y-splitter. Probably a lot to ask out of a hub, and yeah a pcb splitter would likely be best.


Agreed. I also think the PCB's would be the best route. They just look so clean. I will upload some MS Paint stuff I did for my personal rig here for the OP.





This is how I went about it for 6 fans on 1 channel (that is rated for 30w) for a 360 rad in push/pull. Same concept for doing it any other way, and this way was a tad less "plug and play", because I had to use an additional splitter since the hub was for 5 fans, and I was using 6. This also easily allowed me to only send 1 fans rpm wire into each channel. Hopefully this helps out a bit. Let me know if you need anything further help or diagrams. thumb.gif
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post #7 of 12
So you had your 5 fans on the PCB, disconnected the RPM signal from it, then ran it into a y-splitter with the RPM coming from your 6th fan? And what fans did you have on it?

Namely I'm kinda leary about how much to put on a fan channel. I know it's rated for 30watts and I'm using like 11.29 or something with 4 fans but I really don't want to risk it.
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post #8 of 12
Quote:
Originally Posted by teamrushpntball View Post

So you had your 5 fans on the PCB, disconnected the RPM signal from it, then ran it into a y-splitter with the RPM coming from your 6th fan? And what fans did you have on it?
Namely I'm kinda leary about how much to put on a fan channel. I know it's rated for 30watts and I'm using like 11.29 or something with 4 fans but I really don't want to risk it.


AP-15's were the fans being used. It puts ~24w at start up and ~8.5w while running (all on a 30w channel). It is more than fine, and plenty safe that way. And I just ran all 3 wires on the fan to each subsequent fan hub channel. I just only ran the power wires when making the extension from the fan hub to the splitter. The splitter picked up the rpm wire from the single fan that was not hooked into the fan hub. You just have to realize how much things pull on start up, how that actually affects your fan controller, and lastly the quality of your fan controller. I know people who run more than the rated wattage per channel on Lamptrons and they are still running strong years later (I personally do not recommend doing so, though). A quality unit will go a long way in powering and controlling your fans.
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post #9 of 12
Thread Starter 
That's all really helpful!!! The PCBs do look much cleaner. Think I'll look into going that route. I'm using GT-AP15s for fans. I've got a Power Adjust 2 that I was planning to wire all 8 of the UT60 fans to. The other 2 fans for the XT45 and 2 case fans will go directly to the Aquaero 5. Hopefully that works out in terms of heat as I'm planning to undervolt the rad fans. We'll see.

For 8 fans should I just be looking at two PCB splitters? Seems like 8 connector PCB's are non-existant.
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post #10 of 12
Quote:
Originally Posted by bern43 View Post

That's all really helpful!!! The PCBs do look much cleaner. Think I'll look into going that route. I'm using GT-AP15s for fans. I've got a Power Adjust 2 that I was planning to wire all 8 of the UT60 fans to. The other 2 fans for the XT45 and 2 case fans will go directly to the Aquaero 5. Hopefully that works out in terms of heat as I'm planning to undervolt the rad fans. We'll see.
For 8 fans should I just be looking at two PCB splitters? Seems like 8 connector PCB's are non-existant.


They have 8 way ones, but they aren't 3 pin power input (for obvious reasons) I think they only come in 4 pin, 6 pin and 8 pin power input variants. You could still use them, though, and wire it as a 3 pin coming off of any of those connector types. Just would need to find a simple diagram of how to use the right wire slots to so. On the other hand, I think it would be look cleaner if you were to use 2 of the smaller pcb's, and just daisy chain them, or use a splitter to connect them down the line towards your PA2. Also, I am not sure of what the rating is for the PA2, as I have yet to use one. Double check that you are OK with that amount of fan wattage. Subsequently, you could pop into the build logs of Cpachris or Mandrix, as they both have been using the Aquaero 5 XT and PA2's, so they have some experience with it, and for a decent amount of time now. Good luck man! thumb.gif
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