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    M15x 780M problem

    Discussion in 'Alienware M15x' started by Raidriar, Dec 11, 2015.

  1. Raidriar

    Raidriar ლ(ಠ益ಠლ)

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    Ok well I had tried the 8970M and I got max fan speed within a few seconds of turning it on, and now I tried the 780M and it also has the full fan speed, plus the added bonus of 2 bit colors and a hazy screen. wtf is going on. The 8970M did not have this problem and the original 5730 mobility has no issues at all. I'm so confused as how to get any 1 upgrade card working in the M15x.
     
    Raidriar, Dec 11, 2015
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  2. Gofspar

    Gofspar Notebook Consultant

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    Use (DDU) Display Driver Uninstaller to wipe your drivers, then install the new card.

    Are you using the unlocked A9 bios?
     
    Gofspar, Dec 12, 2015
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  3. fatboyslimerr

    fatboyslimerr Alienware M15x Fanatic

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    Have you seated the cards properly in the MXM slot and are you using the correct backplate for the card? Is anything touching any of the capacitors on the back?
    Is the heatsink applying sufficient pressure on to the GPU die? The C-clip screws that come with the heatsink are not long enough to apply sufficient pressure to my 7970M so I had to buy longer screws.

    The Max fan speed issue is due to the vBIOS and/or vendor. If it is a clevo card then I don't think the 8970M will ever have proper fan control. You'll need to use hwinfo64 to manually control fan speed. It will however function properly. No idea about 780M but you might need a flash a different vBIOS version.
     
    fatboyslimerr, Dec 12, 2015
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  4. King of Interns

    King of Interns Simply a laptop enthusiast

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    Be careful NOT to tighten the card screws too much. The other week i replaced the heatsink and screwed the 2 gpu screws too tightly. Screen went black during boot and got 2 bit pixels centre screen. Nothing.

    Opening up loosened half turn on both screws and all was fine

    Sent from my SM-A500FU using Tapatalk
     
    King of Interns, Dec 12, 2015
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  5. Raidriar

    Raidriar ლ(ಠ益ಠლ)

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    Ahh, I think that might be it. Seemed quite a bit tight
     
    Raidriar, Dec 12, 2015
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  6. King of Interns

    King of Interns Simply a laptop enthusiast

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    Yeah a bit of TLC is all that is required! The laptop luckily is easily servicible

    Sent from my SM-A500FU using Tapatalk
     
    King of Interns, Dec 13, 2015
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