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CPU cooler with 2 fans, one PWM one 3 pin

Hey everyone,

This is my first build and I think I need some help on something that I can't find the answer to.

I purchased the Raijintek Tisis but am unclear as how to install correctly as it has a PWM fan and a 3 pin and not sure where to plug each fan into my Asus Sabertooth Mark 2. The MB has a 4 pin CPU Fan connector and a CPU OPT Fan connector, so I was planning on the PWM into the CPU Fan and the 3 pin connector into the CPU OPT Fan connector. Is this correct? If I go this route, will the 3 pin fan always run at full speed as it does not have the "control" wire?

Also, why would they mix 2 different types of fans?

List of parts below:
I5-4690k CPU
Raijintek Tisis Black
Asus Sabertooth Z97 Mark 2
Corsair Vengeance 8GB 1600
WD Caviar Blue 1 TB
PowerColor R9 290x
Phanteks Enthoo Pro White
EVGA 750W G2

Thanks in advance!

Steve
4 answers Last reply Best Answer
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  1. Best answer
    Those are the right headers. The default BIOS setting for those headers should be Auto, which will auto-detect the fan type and adjust control accordingly, although you may need to set it yourself. The CPU_OPT header is slaved to the CPU-FAN, so whatever duty cycle is set for the 4-pin fan should be mimicked by the 3-pin.
  2. volcanoscout said:
    Those are the right headers. The default BIOS setting for those headers should be Auto, which will auto-detect the fan type and adjust control accordingly, although you may need to set it yourself. The CPU_OPT header is slaved to the CPU-FAN, so whatever duty cycle is set for the 4-pin fan should be mimicked by the 3-pin.


    If the 2nd fan is a 3 pin fan, and the connector on the MB is a 4 pin, which of the 4 pins do I leave exposed? Does that make sense?
  3. There should be a plastic guide on the header that slots into a squared groove on the top side of the fan plug. Just line them up and you should be good.
  4. See page 3-7 of your manual for BIOS fan settings. Also, I think your MB has ASUS AI SUITE 3 which has incredible fan control stuff. If you haven't installed it, you should! I think this is the link:

    http://dlcdnet.asus.com/pub/ASUS/misc/utils/AISuite3_Win7-8-8-1_SA-Z97-MARK1-2_VER10079.zip

    Or go to the page at the ASUS site for your MB and browse through the downloads under the SUPPORT tab. It's under DRIVERS and TOOLS > UTILITIES:

    http://www.asus.com/us/Motherboards/SABERTOOTH_Z97_MARK_2/

    Check out the YouTube videos on Fan Xpert 2 for a good overview of all the fan goodies.
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