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Toshiba Satellite L50-B-281, DGPU fault, works on iGPU only.

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    Toshiba Satellite L50-B-281, DGPU fault, works on iGPU only.

    Local PC repair guy had some laptops in the e-waste bin so i bought them for cheap, as i do.
    He said all of them work but they all have issues, and it's true.
    My focus in this thread is the Satellite L50-B-281, which was in the bundle.
    The laptop originally had the hinge support broken off completely in the lower chassis/bottom cover.
    I fixed the broken plastic with hot glue and it's all fine now, except for the GPU.
    When i pulled the heatsink apart i found a huge load of lint and dust buildup so the laptop was most likely constantly overheating.
    As it happens overheating GPU's often die.
    I tried the good old bake in the oven trick, which fixed a few of my dead PC parts and laptops but not this one.
    The symptoms for this dead GPU issue include:
    Drivers don't initialize and throw an error message on start up.
    Drivers do install fine, though.
    No GPU usage monitor in task manager (win10).
    Benchmarks report GPU as not responding and default to iGPU.
    Speccy reports GPU temp as 511C.

    As it happens i'm writing this thread with the laptop i question. It has a nice 1080p screen and a pretty good i5 CPU and i'd like to use it as my study/university laptop.
    My current HP laptop is falling apart and there's only so much fiberglass i can epoxy on it before it's too far gone, also it has an AMD A4400 CPU which is mega slow.
    Would be nice to get the GPU working (without killing the laptop of course) for Solidworks and other GPU accelerated worloads.

    Any suggestions? Taking this laptop apart is quite simple so i don't mind probing around.
    Last edited by PopcornMobo; 03-05-2020, 03:37 PM.

    #2
    Re: Toshiba Satellite L50-B-281, DGPU fault, works on iGPU only.

    reball gpu

    Comment


      #3
      Re: Toshiba Satellite L50-B-281, DGPU fault, works on iGPU only.

      Originally posted by ktmmotocross View Post
      reball gpu
      Reballing is not my cup of tea.
      I might try another reflow in the oven but this time i'll remove the underfill from around the GPU.
      Can't really do that now because i'm renovating my lab/workshop, but i should be finishing up on that soon.

      Comment


        #4
        Re: Toshiba Satellite L50-B-281, DGPU fault, works on iGPU only.

        Replace GPU.
        Or better just forget about it if it works with iGPU. Laptops are not good for heavy graphics workload. Sell it and buy a desktop graphics card.
        OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

        Comment


          #5
          Re: Toshiba Satellite L50-B-281, DGPU fault, works on iGPU only.

          Originally posted by PopcornMobo View Post
          Reballing is not my cup of tea.
          I might try another reflow in the oven but this time i'll remove the underfill from around the GPU.
          Can't really do that now because i'm renovating my lab/workshop, but i should be finishing up on that soon.
          No..no..no, dont kill it in ovem.Either eball it or better replace it.Else be satisfied with iGPU.

          Comment


            #6
            Re: Toshiba Satellite L50-B-281, DGPU fault, works on iGPU only.

            Having the same laptop, disabled the Nvidia gpu from device manager and laptop is working like a charm. 2 monitors setup flawlessly.

            Comment


              #7
              Re: Toshiba Satellite L50-B-281, DGPU fault, works on iGPU only.

              Are we talking about the same machine? According to Toshiba specs page this machine has an AMD Radeon R7 M260.
              OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

              Comment


                #8
                Re: Toshiba Satellite L50-B-281, DGPU fault, works on iGPU only.

                Originally posted by lefos View Post
                Having the same laptop, disabled the Nvidia gpu from device manager and laptop is working like a charm. 2 monitors setup flawlessly.
                only way how to properly disable it is from bios, not from windows

                Comment


                  #9
                  Re: Toshiba Satellite L50-B-281, DGPU fault, works on iGPU only.

                  Sorry my bad, mine is L50-A with nvidia gpu. On bios setup there is no option for gpu disable. That's why I disabled it from device manager.

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