Windows 8 and 8.1 Forums


Video_tdr_failure (atikmpag.sys) after disassembly

  1. #11


    Posts : 8
    Windows 8.1 64 bit


    So a bit more into detail about the actual fix.

    I looked up some information on the soldering material, which was most likely a Sn-Ag-Cu (Tin-Silver-Copper) alloy. This alloy has got a melting point of about 220 ˚C.

    The reflowing process has to be done in a specific way in order to ensure larger lifetime of the connection. So I looked up a common reflow curve as shown here:

    Attachment 56541

    Most important is to ensure that there is no stress on the board due to thermal strain, so a slow rate is absolutely necessary.

    I removed all plastic and paper stickers, and cleaned the GPU with acetone. Subsequently I placed the graphics card on aluminum balls in the oven.

    Attachment 56542

    I set the temperature to 150 ˚C, which took about 4 minutes before it was reached. Then I set the temperature to 180 ˚C which took another 4 minutes. At last I set the temperature to about 230 ˚C which took about 7 minutes, and made visual inspections to ensure the solder was melted. As soon as it started melting I kept it there for about a minute. Then I turned off the oven and opened the door. I left it there untill it was at room temperature.

    Now I applied new thermal paste and put everything back together, and it worked!

    Attachment 56543

    I know that the temperature rates are not met, but at least I gave it a try and turned out to work fine. Hence I do not expect an extremely long lifetime.
    Last edited by Eztys; 15 Jan 2015 at 04:24.

      My System SpecsSystem Spec

  2. #12


    India
    Posts : 2,097
    Windows 8.1 Industry Pro B-)


    Damn dude. I really wish that you were my Electronics teacher in the last semester!

    I am glad to hear that the issue has been solved and thanks for posting back on the forums with so much detail as well.

    Now, what to do with the spare laptop?


    -Pranav
      My System SpecsSystem Spec

  3. #13


    Posts : 8
    Windows 8.1 64 bit


    I have a bachelor of science degree in applied physics, and currently doing a similar master. So I have the knowledge, but lack the equipment.

    At first I wanted to take it to a lab at my faculty, but didn't. It could really enhance the result if proper equipment is used.

    Anyhow I'm glad the problem is fixed for now. I'm either going to use it as a multimedia center, or just use it as second monitor, extra storage etc.
      My System SpecsSystem Spec

  4. #14


    India
    Posts : 2,097
    Windows 8.1 Industry Pro B-)


    Quote Originally Posted by Eztys View Post
    I have a bachelor of science degree in applied physics, and currently doing a similar master. So I have the knowledge, but lack the equipment.

    At first I wanted to take it to a lab at my faculty, but didn't. It could really enhance the result if proper equipment is used.

    Anyhow I'm glad the problem is fixed for now. I'm either going to use it as a multimedia center, or just use it as second monitor, extra storage etc.
    Hi Eztys ^_^,

    I am really sorry for the late reply. I have been facing a lot of Internet Problems

    Glad to hear that the problem has been solved ^_^


    -Pranav
      My System SpecsSystem Spec

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