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Help needed to bypass the CPU fan failed error at startup

Discussion in 'Overclocking, Cooling and Modding' started by Conk1993, Aug 27, 2011.

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  1. Conk1993 Newcomer, in training

    My fan recently broke. So I simply jus popped another one on. The fan I replaced it with jus has red and black which is obv live and neg but the one I took out has red black and yellow any idea about the yellow ? The fan works great but CPU fan failed error keeps appearing then when I press F11 it says entering setup but still shuts down.any ideas about how to keep it running just to get into the settings and change the CPU fan settings. Would be grateful with any help. Thankyou.
    Conk1993, Aug 27, 2011
    #1

  2. mailpup TS Special Forces Posts: 7,901   +76

    You bought the wrong type of fan. They aren't all the same. You should have bought a CPU fan but you have a case fan instead. The yellow wire goes to a sensor connection that controls the speed of the fan. The motherboard detects the missing connection and throws the error you saw. The solution is to buy the correct type of fan.
    mailpup, Aug 27, 2011
    #2

  3. SNGX1275 TS Special Forces Posts: 11,891   +117

    There is probably a setting in the BIOS to ignore that.
    SNGX1275, Aug 28, 2011
    #3

  4. Conk1993 Newcomer, in training

    Yep wrong fan but is that third wire reli nessacary ? Can I do without. And I can't get in to bios at all. I press f11 to enter setup and it still shuts down. Can I stop this ?
    Conk1993, Aug 28, 2011
    #4

  5. thesnappyfinger Newcomer, in training

    you could try popping in the old non working fan simply to access the bios. Now thinking about that, that probably wouldn't work, just buy a new fan.
    thesnappyfinger, Sep 8, 2011
    #5

  6. animall Newcomer, in training

    ello,

    First, after passing BIOS boot press F8 to get into maintenance screen of Microsoft.

    Second, choose SAFE mode

    Third, after logging into Windows 7 Safe mode session, go to Windows services management screen and just disable WMI Service on Windows 7.

    Then, after restarting the system you probably will enter the normal Windows session.

    Walla .....    Edit
    animall, Jul 2, 2012
    #6
     

  7. mike1959 TechSpot Enthusiast Posts: 951

    Hi. I wouldn't run my PC for long without the CPU fan running, could end up costing far more than a $10 fan replacement.
    On my spare PC, a Pentium 4 2.8 + heatsink/fan combo, the wires are green, yellow & black.
    mike1959, Jul 2, 2012
    #7

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