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    7970m in a Ranger, fan control issue

    Discussion in 'Alienware 17 and M17x' started by cavkic, May 15, 2020.

  1. cavkic

    cavkic Notebook Enthusiast

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    Since my 880m died I've ordered a 980m, but in the meantime I've replanted a 7970m from my M17x R4 in the Ranger.

    The gpu itself works fine, but there's a problem with the GPU fan - it does not spin up.

    The fan is fine, I ran the power+fn diagnostics and it spins up, no problem there.

    MSI afterburner doesn't see the fan at all, neither does radeon software.

    Even HWinfo doesn't control it.

    Could it be the bios? I'm on A14 stock, and rather wouldn't update the bios because of the microcode-nerf.

    Is there some other way to contol the fan manually.
     
    cavkic, May 15, 2020
    #1
  2. IVHOTEP

    IVHOTEP Notebook Consultant

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    I did this recently and will post soon since this thread is closed

    Pwm bypass switch on 17 r1
    you can cut the pwm wire but then the fan is at100% all the time
     
    IVHOTEP, May 15, 2020
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  3. cavkic

    cavkic Notebook Enthusiast

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    Ah sweet, I have a spare M17x gpu fan, might cut that one, don't wanna destroy the Ranger's fan for when the 980m arrives.

    It's not a perfect solution but I guess it's better than nothing.
     
    cavkic, May 15, 2020
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  4. IVHOTEP

    IVHOTEP Notebook Consultant

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    R4 THPDJ fan?
    that one is 11 cfm, much better, I put that one in mine.
    stock ranger is 1.something

    you dont have to cut the wire, just carefully unplug it from connector
     
    IVHOTEP, May 15, 2020
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  5. cavkic

    cavkic Notebook Enthusiast

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    Oh okay, wasnt aware of that. I'll check which one is it when i come home from work.


    I thought the one from M14x was the one to get.
     
    cavkic, May 15, 2020
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  6. IVHOTEP

    IVHOTEP Notebook Consultant

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    more in this thread

    M17xr3/r4/Ranger - Plug and Play High RPM CPU fan mod
     
    IVHOTEP, May 15, 2020
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    cavkic likes this.
  7. cavkic

    cavkic Notebook Enthusiast

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    Just a quick heads-up SpeedFan works fine when you enable DELL support and adjust custom fan curves. Solved the problem for me (although not perfect, it's better than nothing).

    Still the system by itself won't spin the fan. Interesting.

    HWinfo64 and Afterburner also didn't work.
     
    cavkic, May 15, 2020
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  8. Mastermind5200

    Mastermind5200 Notebook Virtuoso

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    Yes as the 7970M doesn't have fan support
     
    Mastermind5200, May 15, 2020
    #8