There is DVM (dedicated video memory) and SVM (system video memory). Make sure you understand the difference.
You deal with DVM in the BIOS. If you cannot change DVM in the BIOS, then you cannot change it.
Review post #2 here: Is it possible to increase the amount of dedicated video ram?
I already saw that post and followed the steps but it did not help me at all. Even at the beginning I could not find the folder gmm so believe it as one of the comments said.
My question is, is there any other way to increase dedicated memory from the BIOS but without doing that configuration ?, I mean a new configuration, or if you renamed the folder and it is no longer called GMM.
In summary; I'm looking for another way to modify dedicated memory from the BIOS