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    Clevo p177sm screen failure

    Discussion in 'Sager and Clevo' started by dolphinicecream, Jan 31, 2014.

  1. dolphinicecream

    dolphinicecream Newbie

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    Hello!

    Recently got a screen problem:
    The laptop has green flickering dots in all black images on the screen. The green dots appear in different spots without any pattern. There is not problem with light images, you can see green dots only in dark images. The image is perfect on the external monitor.


    The solutions:
    1. Check connection between the video cable and video card/motherboard. Make sure the cable is plugged correctly, all the way into the connector. Try reconnecting the video cable.

    2. It’s possible that there is a pinched wire inside the video harness and because of that the LCD screen is not getting proper data signal from the motherboard. As a result of that you see all these green dots in black images. Try replacing the video cable.

    3. If reconnecting or replacing the video cable doesn’t fix the problem, most likely this is related to the LCD screen failure. Try replacing the LCD screen.



    Now here's the question:
    Where is the video cable Connected to the Motherboard on a p177sm? Really been around every googlesearch known to man. But haven't got a clear shot. I'm alittle green, but not an expert.

    Picture of the motherboard:
    http://www.hitech-gamer.com/out/fck_pictures/Motherboards/Clevo_P170SM_Mobo_500px.png

    Video showing most components:
    Sager NP8290 Haswell GTX780M (Clevo P177SM) Review & Benchmarking - YouTube


    Also, which thermal paste should i get? :)
     
  2. Prostar Computer

    Prostar Computer Company Representative

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    The video cable is the one that runs from the right side of the monitor to a beige colored connector. If I remember correctly, it's near the connector for the power button.

    video cable connection.jpg

    It's going to be one of the thickest cables - if not THE thickest cable - going to the board, with a black sleeve to cover the wires.
     
  3. Meaker@Sager

    Meaker@Sager Company Representative

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    Check your system memory speed and try running a single stick too.
     
  4. dolphinicecream

    dolphinicecream Newbie

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    Thanks for the replies.

    Ok, then I've to get under the keyboard and remove the plastic.

    Meaker:
    My system memory is at 1598.2 MHz, but I don't understand how that would help. Could you explain it? :) Would like to try to fix this without unscrewing every screw there is.
     
  5. Meaker@Sager

    Meaker@Sager Company Representative

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    Running memory too fast can cause artifacts as can memory stability since the igp uses it to store display information.
     
  6. dolphinicecream

    dolphinicecream Newbie

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    But 1598 is normal speed. But I'm really thankful for some help with the problem.

    The problem first occurred Wednesday of last week. On Tuesday I did some medium/heavy rendering in Maya, so the temperature were a little high, but I don't think it could have something to do with that. And I didn't drop the pc, or slam the screen when shutting it.

    I've formatted the pc, so it shouldn't be software related. Or could it?
    Haven't got any blue screen. And doesn't look like a frozen/dead pixel since it only follow black part of pictures.
     
  7. Meaker@Sager

    Meaker@Sager Company Representative

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    You don't have to have knocked it, thermal creep can cause cables to come loose, memory can go bad, so you need to check the cable first and the ram . Then you can investigate the gpu.