I have an Asus X550Z with the following CPU/igpu - AMD® APU A10-7400P /A8-7200P (Kaveri) processor. I noticed no matter what operating system I install, only about 3.5GB of my installed 8 GB is usable. Upon doing some research, my understanding is that my CPU has an integrated GPU. Apparently the igpu uses the system memory. I'm wondering if it is possible to control how much of my physical memory is being allocated to the igpu? My BIOS doesn't seem to let me control this. Is there another way? By the way I am using Ubuntu/Mint as an OS.