Originally Posted by compuman145
Because that's missing the point of a fan controller in the first place. The reason you have a fan controller is to control the power output to each unit, you don't want PWM to mess up your fan speeds....
To be honest though, I wouldn't bother with those fans unless you're looking at a colour scheme...
^^ that fan controller is a bit sucky for the price to be honest, it only gives 12w per channel from what I can find about it... That can be enough for just a single fan per channel, you'd still be better off with the lamptron series. the FC5V2 is pretty epic. either that or the lamptron touch.
Sorry, but I am finding it hard to understand the point of this post.
1. "you don't want PWM to mess up your fan speeds" This makes absolutely no sense to me. As that controller only has three pin connections, PWM will not be involved at all. From what I can see, the layout is such that you won't be able to hook up four pin fan connectors at all, which may be what the background is for the later coment about three pin splitters.
2. "That can be enough for just a single fan per channel". True, but rarely. Most fans use very little power. For example
Gentle Typhoon AP15s - less than 1 watt
Swiftech Hellix - less than 2 watts
Noctua NF-S12-1200-D - 1.44 Watts
His choice fan - 5.4 watts, so it will be close but within specs to run two per channel.
Overall, I agree that this fan controller is not the best solution. The main issue will be one that can accommodate the connections, or he will need adapters of some kind to go from four to three pin.
The other solution would be to run two pins straight to power, and get a pwm splitter and control the speed off a motherboard header. This is one of the advantages of PWM.