RE: Inspiron 17R N7110 - NVIDIA GeForce GT 525M, Yellow triangle (!) and code 43
This could be one of three things, Windows corruption, video driver corruption, or a defective GPU.
Troubleshooting, you try to completely remove the drivers from Windows and clean reinstall them. If that failed you really have two choices, reinstall Windows or replace the video card. Unfortunately, you will either have to reinstall Windows to determine if the video card is works correctly, or replace the GPU and see if the problem continues.
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