Artefacting / locking R7 370 - bad memory chip identification

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  • Jonny_Doe
    New Member
    • Feb 2022
    • 3
    • Romania
    #1

    Artefacting / locking R7 370 - bad memory chip identification

    Hello everyone.

    My son came to me one day saying that his pc locks up.
    I found his onboard sound and gpu not working.

    The gpu is an R7 370 and it has weird colors in bios and locks hard when windows/linux loads a driver for it.

    I have run a diagnostic utility (a linux based app with mats/mods for nvidia and tserver/memfa for AMD) and it spew out some things.

    It says error on ch7 rank 0 bit 14.
    Now, i have no idea which of the 8 chips is ch7.
    There are 4 chips arranged vertically to the right of the gpu and 4 horizontally on the top

    I can try reflowing/reballing as i have access to some equipment but have no idea which memory chip it is.

    I know that it might be a bad solder pad on the gpu and not the memory but i have to start somewhere.
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    • Bozog
      Senior Member
      • Jan 2022
      • 125
      • UK
      #2
      Re: Artefacting / locking R7 370 - bad memory chip identification

      The memory channels usually go anti clockwise from the bottom right of the GPU, so I guess its the top left memory chip, and probably a cold joint or broken pad since it is only 1 bit failing.

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