Hello, firstly i hope you're all fine. I bought an acer laptop 2 weeks ago ,
https://www.acer.com/ac/tr/TR/content/model/NX.HF0EY.002 here is a laptop. Have 8gb ram and 2 gb external graphic card but at the system features usable ram is 5,93 gb as seen in the photo. After the doing same researched i learned that vram using 2 gb except rx540. I don't wanna this, i need only use the external graphic card and have usable 8gb ram. I'm looking the bios for fix it this situation but i can't fix the problem. Please help me. How can i change the settings ? 2 gb is very much for the vram, just external graphic card is enough for me. What do you think all ?

Amd control screen looking like this :