Broken GTX 980M

Discussion in 'Hardware Components and Aftermarket Upgrades' started by Darker01, Nov 11, 2017.

  1. Skithemlig

    Skithemlig Notebook Enthusiast

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  2. Skithemlig

    Skithemlig Notebook Enthusiast

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    Soo... I replaced the mosfets and the card works!

    Thank you :)
     
  3. Darker01

    Darker01 Notebook Consultant

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    Sweet! Congratulation. You saved yourself 3 weeks and $400 plus ship. Those were the numbers thrown at me before I decided to just wing it.
     
    Last edited: Dec 1, 2018
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  4. Skithemlig

    Skithemlig Notebook Enthusiast

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    The feeling when you install the card and you see the computer booting! -Amazing!

    Thank you! Without this thread I never would try to troubleshoot the card, as you said - "There's no schematic for the card floating around"
     
  5. chrisssj3

    chrisssj3 Notebook Enthusiast

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    I got a Clevo P771DM-G with an Nvidia 980M with 8GB and Gsync.

    The laptop shutdown after hearing 21-22+ beeps. Ussually when stressing the laptop. Playing fortnite with 120 FPS makes it crash fast. (ussually within minutes, sometimes can take 40 min.) On chrome and desktop use it has never crashed except for one time when watching youtube.
    At first I thought it was the power supply. The led went dark on the power supply and I couldnt turn on the laptop untill I reconnected the power supply to the power socket to get the light to turn green.
    Whenever the beeps happen the power light led on the laptop itself will start to flash orange.

    Then it changed and no more beeps, just straight power loss. then the morning after beeps again.
    Some windows event logs for reference:
    http://prntscr.com/n7smnh
    http://prntscr.com/n7smif
    http://prntscr.com/n7sme1
    http://prntscr.com/n7sm8q
    http://prntscr.com/n7sm4p
    http://prntscr.com/n7slv7
    http://prntscr.com/n7slqr
    http://prntscr.com/n7tv4n
    http://prntscr.com/n7tvk6

    This is where my real post starts:
    Me and my friend opened it up and we found this:
    http://prntscr.com/n8ndd4
    http://prntscr.com/n8ndgs

    As you can see the board is a bit burned in one corner, on the other side there is a mosfet.
    From reading online(here) it seems a number of people had success with replacing all the mosfets.

    So my question here is, which mosfets do you need and where did you aquire them?
    Anything on my pictures above that gain your attention?
     
  6. Brown bear

    Brown bear Notebook Enthusiast

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    usually closes, leftmost, marking CSD87350D.
    replacement in the service will cost up to $ 5. You can buy on AliExpress or ebay.
     
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  7. chrisssj3

    chrisssj3 Notebook Enthusiast

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    Do you know the entire number? it isn't quite visible in my photo.
    CSD87350D Yes. But then something "xxx" 583 and ZKD"something"|

    If I look at ebay I see the CSD87350D with TI 14E S79 E3 or CSD87350D with TI 44I ACKO E4
    So it seems there are different "CSD87350D" chips..
     
  8. Brown bear

    Brown bear Notebook Enthusiast

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    it does not matter. batch number.
     
  9. chrisssj3

    chrisssj3 Notebook Enthusiast

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    Last edited: Apr 7, 2019
  10. Darker01

    Darker01 Notebook Consultant

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    I bought directly from Texas Instrument using this link here: http://www.ti.com/product/CSD87350Q5D/samplebuy

    If you are in CONUS I highly recommend you do that. If I were you I would replace all 3 MOSFETs on the board, in case any of them were to go bad. When handle the new MOSFETs, ground yourself and don't touch the metal contacts as that may cause ESD damage to them.

    Also do be careful when you desolder the MOSFET on the 980M so as to avoid popcorning the PCB at that corner.
     
    Last edited: Apr 8, 2019
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