GPU fans not kicking up unless I set manually

Discussion in 'Alienware 18 and M18x' started by chewbakaats58, Sep 26, 2020.

  1. chewbakaats58

    chewbakaats58 Notebook Evangelist

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    I posted in another thread about one of my 980m's going bad in my Alienware 18. I believe this ended up being because of overheating overtime as the fans weren't kicking up when temps increased. That being said, is the only way to fix the fans turning on is by using a program like Hwinfo? I'm on latest bios (A15). Currently I just set them manually before doing anything graphically intense and it's fine, but would like the system to automatically do it. I did just repaste with Phobya Nanogrease as well so should be good on that front.
     
  2. Chivalrous Roamin Knight

    Chivalrous Roamin Knight Notebook Enthusiast

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    Yeah....same here, as I believe my GPU got cooked. The local repair shop here had my 18 for over 8 months and the tech's he conferred with said it wasn't worth fixing; I found it very odd he would tell me that, thinking, shouldn't that be my decision? And along with that, he didn't exactly tell me what was wrong or needed repaired; he knew the fans weren't operating as they should. On a whim, I fixed it myself using the Opolar laptop fan; I posted this fix in another thread that someone else started and was inquiring about their fans doing the same. The Opolar solved my issue; here is the link to that comment/thread: http://forum.notebookreview.com/thr...-slave-only-aw-18.833310/page-2#post-11024338
     
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  3. Azther

    Azther Notebook Consultant

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    providing you set it up right, you can have a custom auto fan curve set up in hwinfo. then u can add the line in the config file to were the fan control window opens up minimized along with hwinfo when it starts with windows
     
  4. chewbakaats58

    chewbakaats58 Notebook Evangelist

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    Good deal guys thanks for the help. I'll just set up a curve within hwinfo
     
  5. Raidriar

    Raidriar ლ(ಠ益ಠლ)

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    Alienware 18 uses a master-slave vBIOS configuration for fan control. You said you swapped slave to master slot. You will need to reflash its vBIOS to activate native fan control. Plan you did not fry the card's mosfets. vBIOS location:

    https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=9w9f7

    n16egx1 is master vBIOS
    n16egx2 is slave vBIOS.

    The card installed in the left/master slot must have master vBIOS flashed to activate native fan control.
     
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  6. chewbakaats58

    chewbakaats58 Notebook Evangelist

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    That it explains it. I was wondering how the gpu fans would altogether stop working like that when they were going just fine before. So what you are saying is if I order another 980m eventually to put back in the slave spot and to run SLI..I am going to need to flash it with the slave vbios? I'm assuming these cards come master vbios flashed when getting off ebay,etc.

    Also, @Raidriar from what I posted in this thread: http://forum.notebookreview.com/threads/psu-light-turns-off-when-powering-up-laptop.834183/

    Does this mean it's a dead card? I don't see any burnt components so if there is anything I can look at to give me a sign let me know. This was the card that was in the primary master slot and is now removed from the system, so just running that slave 980m card now in the primary..which I will now re-flash per your recommendation to get fans going.
     
    Last edited: Sep 27, 2020
  7. Raidriar

    Raidriar ლ(ಠ益ಠლ)

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    Yes for Alienware 18, you absolutely must use the vbios I linked.

    and yes, plug light going out when hooked into computer means a short. Your troubleshooting has pinpointed the 980m as the problem short
     
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  8. Chivalrous Roamin Knight

    Chivalrous Roamin Knight Notebook Enthusiast

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  9. Chivalrous Roamin Knight

    Chivalrous Roamin Knight Notebook Enthusiast

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  10. Chivalrous Roamin Knight

    Chivalrous Roamin Knight Notebook Enthusiast

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