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2 fans, 1 3-Pin power extension

W

wixdfast

Member
I have 2 120MM Yate-Loon Blue LED fans in the rear of my case. 1 is going straight to the motherboard and the other is going to a Scythe Kaze Master fan controller. I'd like to control them both under the same knob, so I was thinking of cutting off both ends, soldering them together, and soldering a 3-pin power extension back onto. Something like this
http://i44.tinypic.com/2gsr795.jpg
Would that work?
Thanks in advance!
 
You would loose the sense (yellow cable) part of the fans if you spliced all six cables (black, red and yellow) on to the one 3-pin connector.
I don't think this would affect the power/fan control element of your controller (all it does is adjust the voltage to the fans to alter fan speed), it just means the fan RPM sensor element of the controller would be buggered up, unless you only connect the sense cable from one fan only (hence its only sensing the RPM speed from one fan as opposed to a mixed up signal from both fans).

Hence, splice the black (ground) and red (+12V) cables from both fans on to the one 3-pin connector plus the yellow cable (sense) from one fan only. It should be ok.
 
Originally posted by: daw123
You would loose the sense (yellow cable) part of the fans if you spliced all six cables (black, red and yellow) on to the one 3-pin connector.
I don't think this would affect the power/fan control element of your controller (all it does is adjust the voltage to the fans to alter fan speed), it just means the fan RPM sensor element of the controller would be buggered up, unless you only connect the sense cable from one fan only (hence its only sensing the RPM speed from one fan as opposed to a mixed up signal from both fans).

Hence, splice the black (ground) and red (+12V) cables from both fans on to the one 3-pin connector plus the yellow cable (sense) from one fan only. It should be ok.
Click to expand...

+1 :thumbsup:
 
You could also use a fan power Y. You may just have to remove the speed sensor wire from one of the fans' 3-pin connectors (easy to do). This is the no cutting/splicing solution. Places like jab-tech.com or SVC.com usually have the fan power Ys available. A proper fan Y will have the sensor wire connected on only one side anyway, so no mods to a fan required.

.bh.
 
Originally posted by: Zepper
You could also use a fan power Y. You may just have to remove the speed sensor wire from one of the fans' 3-pin connectors (easy to do). This is the no cutting/splicing solution. Places like jab-tech.com or SVC.com usually have the fan power Ys available. A proper fan Y will have the sensor wire connected on only one side anyway, so no mods to a fan required.

.bh.
Click to expand...

http://jab-tech.com/3-pin-Y-adapter-pr-1591.html

$0.79
 
Or you can use the splitter, Gillbot recommended.

The only reason I spliced three fans together was because they were going on the rad for my liquid cooling set up and I didn't want to risk one fan being accidentally disconnected without me realising it.
 
You'd only want to order a fan Y with something else - shipping one alone would cost too much except maybe at SVC where they would ship 1st Class uninsured on small items.

.bh.
 
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