1. Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Case fan speed cannot be controlled

Discussion in 'Cases, Modding & Electronics' started by Eliyahu, Jan 6, 2009.

  1. Eliyahu New Member

    Joined:
    Jan 6, 2009
    Messages:
    3 (0.00/day)
    Thanks Received:
    0
    Hi...I have 'passively' used this forum before and has helped me (and saved me!) many times. Now I have an unaddressed question and hope you guys can help me again.

    I recently built a system based on an Intel DG965WH and a C2Q Q6600. Everything works relatively fine, but I wonder why my outlet fan is running at full speed.

    It looks like this fan is not being speed-controlled (and sounds like being running at full speed). The BIOS "hardware control" utility reports 000 RPM. The fan is a Nidec TA350DC, its connector is a three-pin and has a black, a red and a yellow wire (for GND, +12V and Tach I presume).

    When I tested another fan on the same header, but this fan having a black, a yellow and a green wire on its connector, the motherboard seemed to control its speed correctly.

    May I be using the wrong kind of fan for my motherboard?

    Thanks in advance.

    E.
     
  2. Sasqui

    Sasqui

    Joined:
    Dec 6, 2005
    Messages:
    8,728 (2.17/day)
    Thanks Received:
    2,713
    Location:
    Manchester, NH
    Welcome to our world :)

    Definitely sounds like either incompatible headers (which is odd), or a faulty fan if the other one works fine.
     
    10 Year Member at TPU Crunching for Team TPU
  3. Eliyahu New Member

    Joined:
    Jan 6, 2009
    Messages:
    3 (0.00/day)
    Thanks Received:
    0
    Thanks for the warm welcome, Sasqui. :)

    I also thought about an incompatibility issue, since the fan seems to be in good shape. But...isn't there a standard connection for 3-pin fan headers?

    In any case, the second fan (the one that works) has a different wire-coding color.

    While the non-working one has a black, a red and a yellow wires, the second one (the working one) has a black, a yellow and a green wires.

    Are there different 3-pin fan header standards? If so, which ones are they?
     
  4. Sasqui

    Sasqui

    Joined:
    Dec 6, 2005
    Messages:
    8,728 (2.17/day)
    Thanks Received:
    2,713
    Location:
    Manchester, NH
    10 Year Member at TPU Crunching for Team TPU
  5. Eliyahu New Member

    Joined:
    Jan 6, 2009
    Messages:
    3 (0.00/day)
    Thanks Received:
    0
    Thanks again.

    I still don't see why my fan refuses to be monitored. :(
     

Currently Active Users Viewing This Thread: 1 (0 members and 1 guest)