Best way to keep 15" models from using separate video chip?

[bjf]

I've never tried using any type of utility to keep the 15" models from switching graphics so I'm wondering if there's a reliable way to do that. I'm wanting to try it with 2012/Early 2013 models and Late 2013/2014 models. Any tips?

 

[bjf]

Any ideas on this?

 

[SMMRepair]

Why are you wanting to do this? 3332 boards are repairable, and 3662/3787 boards aren't typically GPU issues. Just curious why you would do it?

 

[bjf]

I don't know of a way to fix 3332 boards beyond the U8900 fix which sometimes works, but many times doesn't hold up. And I'm getting a fair amount of video chip issue with the 3787 boards. I'm not sure what else to do with those beside try to shut down the graphics chip.