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Question about fan splitter cables???

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  • Systems
Last response: in Systems
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March 29, 2013 3:15:33 AM

Hi to all,

I have a question about fan splitter cables, simple cheap little things but I've never used them before.

I am about to buy a Fan Controller, (This One), as my case has 8 case fans and they are the Scythes Gentle Typhoons, a few of the 3000rpm version and a few of the 5400rpm, so they are really loud. At the moment using software I can't turn them down to below 40% which means even when idling the PC is still quite loud.
Anyway, I have checked that the fan controller I'm going to buy can handle at least 2 of these fans per channel, which it can, but now I'm going to need some fan splitters. Maybe these: --> Link <--
But I'm not 100% how these work, because 1 of the connectors only has 2 wires, red and black with the yellow missing, does this mean that even with a fan controller 1 fan would be voltage controlled and speed up or down when I adjust it and the other fan wouldn't, i.e. it would spin at full tilt all the time???
So would I need a fan splitter that has 3 wires to "both" connectors???
I've never used these fan splitters before so I'm not sure how they work exactly.

Would really appreciate some help.
Thanks to all

More about : question fan splitter cables

March 29, 2013 5:13:12 AM

It will still control both fans. the 3rd wire (yellow) is the tacho feed which allows the motherboard/controller to monitor the fan speed, so using the splitter the mobo will monitor the speed of one fan and adjuszt the voltage to both accordingly
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March 29, 2013 1:54:30 PM

Outlander_04 said:
Its unlikely your case needs 8 fans

The easiest way to make it quieter is to uninstall anything that you can live without

and then do this to those you need
http://www.techpowerup.com/articles/other/137


Yeah you could be right but I don't wanna take any chances as I've just moved to a different country and temps here in the summer (which lasts about 9 months) are regularly in the mid/high 40c's with 99.9% humidity :-\
I will invest in a custom water cooling system probably next year, but until then, 8 fans lol =)

confuciused said:
It will still control both fans. the 3rd wire (yellow) is the tacho feed which allows the motherboard/controller to monitor the fan speed, so using the splitter the mobo will monitor the speed of one fan and adjuszt the voltage to both accordingly


Arrrr, I thought the yellow had something to do with the speed control. But now you've said that, it makes sense, the MoBo couldn't read 2 different fan speeds at the same time could it.
Silly me I hadn't thought of that xD

Thanks for your help, really appreciate it.
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