980TI Jetstream | vCore no heating up

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  • Lazaros Karypidis
    GPU Repair Noob
    • Nov 2024
    • 6
    • Germany
    #1

    980TI Jetstream | vCore no heating up

    Hello Community,

    I am in the process of repairing a Palit 980TI Jetstream. Before that, the GPU was running with new drivers. But as soon as I started a benchmark (or a game) it went off, but the computer stayed on.
    I then wanted to check the phases to see if they switch when there is a load on the card. But I slipped with the measuring tip and (I assume) caused a short circuit on the NCP81162 (phase doubler) (marked green in the photo).
    Since I wanted to be on the safe side, I replaced all three NCP81162 and the PWM controller NCP81174.

    Unfortunately, the VCore no longer warms up from this point on and I also get no picture. Now I have searched the net for the boardview, because the ones from MSI and Asus don't fit, but I couldn't find one to understand how the paths of the individual chips run and what hangs in between to check this.

    I want to ask if you could give me a tip on what else I should/can check and if any of you have a boardview of this one card.
    Do you need accurate measurement results? If so, which PINs do you want to know?
    Everything I have changed is marked in red
    Many thanks

    Lazo
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