Samsung Chronos NP770 NP870 disable discrte GPU

[faeterov]

Hi everybody, I would like to request some help for some old laptops I have at work.
This Samsung Chronos laptops (Core i 3rd gen) are excellent, but unfortunately their dedicated Radeon 8870m GPUs are starting to give me more problems with current drivers, and the way microsoft pushes updates.

Many years ago I managed to mod a bios to disable the Radeon GPU an only let the iGPU run, but I cant seem to fin it, and also Im a little out of training in using AMIBCP to mod said BIOS.

I was wondering if some of you could help me modding the original BIOS, or at least helping me remember where was that option in the menu. Im attaching some pictures of places that ring a bell in my memory about disabling the dGPU.


https://mega.nz/file/1UkEWBKT#MzpfDHrvOd...5v7vWiz6iA

[faeterov]

Just wanted to share that I found the other laptop that I allready had modded its BIOS, it a NP770z5e, BIOS revision P07ABU, not the same one that I uploaded originally, but I'll try to remember what was originally changed.
https://mega.nz/file/wNFxjIhD#S1sCd39GjS...FmJvNdNN-s

Also Im posting a comparison between the original of that laptop, and this new one.

[faeterov]

This is the final BIOS that I made, that has the dedicated AMD GPU disabled.The procedure was to dissable in the main menu the dgpu, by selecting de igpu and opting out of "SG".

https://mega.nz/file/8A8ySB4S#wHIgM0NLNW...Jjz91QFsBw