Motherboard fan/CPU headers?

Soldato
Joined
18 Oct 2002
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Location
UK
Since I last bought a motherboard tech has changed :) It's leaving me with a few questions to answer so I've got everything straight in my head before purchase!

I'm looking to buy a ASRock Z68 Mobo, which obviously has the CPU fan header next to the socket, and pairing it with a Gelid Tranquillo cooler, that comes with a 4pin connection (I know it means 4pin and not Molex)

So will the mobo control the fan speed through the 4th pin here? Thats a good way of doing it I trust? Previous systems I've had have all run through auto/manual fan controllers.

If I get 4pin Case Fans, these can also connect up right, and be controlled by the mobo directly? How does it know what speed to run them at? Or can that be controlled via ASRock software possibly? Maybe I can choose the set points or fan speeds? This is where I'm lost!

Otherwise I'm looking at budget cases, some that have high/low switches built in, with the fans included.

Cheers :)

/edit.

Just seen this in the online PDF, looks like the fan headers aren't 4pin, just the CPU is :(
Ruins my question, well answers it really :)
That's if there is no way to control the speed through a 3pin, which I don't think there is?

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Some motherboards allow you to vary the fan speed in BIOS. My old ABIT QuadGT let me set all the speeds of all the fan headers. Using ping 3 to show the speed and varying the voltage to pin 2 controlled the speed.
 
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