Originally Posted by guinner16
I pm'ed you about the fan controller debacle I am having. For everybody else, my h220 came with an 8 way splitter and I bought an extra one. I planned on have the 2 front and 2 bottom fans on channel 1. The gpu, rear, and top exhaust fan on channel 2, and the 4 rad fans on channel 3. So I hooked everything up and they just run at full speed with no control. Swiftechs website does say that not all fan controllers will work with their pwm splitter. To test I individually wired fans to the channels and had full control. So now I am looking fan splitters that wil work with a Lamptron FC5-V2 and be able to set it up as I described above. I was a little frustrated with the fan controller so I decided to temporarily run a couple cables and see what happened. At least some good news came out of tonight
I'm working up multiple replies right now, it will take me a bit to answer all your questions (here and in your PM), but I'll have some answers for you in a little bit.
I'll be doing a couple of edits to this post to answer your questions as I can track down the answers, so you may want to refresh to re-read the post (if you are reading this early Wednesday morning anyway)…
OK, first answer, about the Swiftech splitter, because it is a PWM splitter, it will not work with a manual fan controller. PWM fans (and splitters) do not work on the normal voltage adjustment like regular fans, the PWM signal is a pulse signal and controls the speed of the van in pulses or bursts, rather than through voltage manipulation. Think of it as turning the fan on and off hundreds of times a second to get the right speed rather than lowering the voltage (if you’re really interested, there is an interesting article HERE
about different types of fans and how they work).
Because of this, PWM fans and fan splitters will not allow for the manipulation of fan speeds via a standard fan controller. Unfortunately, what this means to you is either you would need to rewire the power cables for the splitter (I’ll explain how below) or buy a new splitter.
If you do want to rewire the power cable, what you would need to do is get rid of the PWM wire and just run with the 3 main wires (power, ground and tach). IIRC, these should be the yellow (power), black (ground) and green (tach), assuming of course that Swiftech follows the standard wire color scheme (which I’m sure they probably do). Basically, you would just need a 3 pin connector (you could just cut one off an old fan if you have any lying around), and set the wires up (from left to right, with the notches on the connector facing you) black, yellow, green. This is really not too hard to do, but can be kind of a pain because the wires are so small. As this is your first build (and rewiring connections is typically more advanced), this may not be the best option, but if you think you can handle it, dive right it, I’m sure you can!
For ease of use with the fan controller, if you are just going to buy a new splitter, I would recommend something like THIS
. They are very basic, very cheap, and work well. Then all you have to do is run a 3 pin connector from the fan controller to the splitter, and you have full control.As for the NZXT fan splitter (you mentioned in the PM), can you post a link to it so I can look at it? They make a ton of different ones and I need to know exactly which one you are working with in order to best advise you on how to handle it.
EDIT 2 (copied from the PM I just sent you):
OK, what you need is THIS
, a 4 pin female to 3 pin female adapter wire. The problem is, they are not a standard cable, so getting them is a bit pricy for what they are (Performance-PCs.com, the link I gave you, make them custom, and they are the only place I've seen that does). I tried looking on Amazon, but didn't find anything. You may want to check out any other sites you shop from, but just make sure it is a 4 pin female to 3 pin female wire and it will work. Just plug the 3 pin end into the fan controller and the 4 pin into the splitter and you're all set.Edited by WonderMutt - 3/13/13 at 7:11am