What's the cause of GPU panics on macbook pro mid 2010?

Suggested problem tracing /and repair) steps (after each test the performances).

Some applications will force use the Nvidia card (without automatic switching).

Yes the ZOOM feature adds stress to the GPU.

• Vacuum clean the inside of your Mac to improve cooling.

• Google and Install gfxCardStatus, Leave on Dynamic Switching. From there it will Monitor and Alert you to what apps switch you to the Nvidia Graphic Card.

• Also open the Activity monitor - Energy tab, where you can see when the Nvida card kicks in, and does it switch on/off irregularly.

• Monitor your Console log for irregular (fast)GPU switching.

• Do some hardware testing:

GpuTest is a cross-platform (Windows, Linux and Max OS X) GPU stress test and OpenGL benchmark. GpuTest comes with several GPU tests including some popular ones from Windows'world (FurMark or TessMark).

• worst case remove the Nvidia card, and go without it.

Only way to fix Mac Book Pro 15 Mid 2010 by software is older gfxCardStatus 1.8.1(download site: https://software.com/mac/apps/gfxcardstatus/1.8.1 or whenever you find it) don't try newer versions !!!! it will no work. Then install gfxCardStatus 1.8.1. in menu check mark: Intel Only. in preferences, check mark:Load gfx.. at startup. and. Restore last used mode at startup It will never shutdown but it will never use nvidia graphic card