How to open Bios and change to dedicated graphics

Nov 4, 2018
3
0
10
My friend and i were just playing destiny and he was lagging a lot. He has a 1060 and a good cpu so i was confused. He then told me hes VRam was 2500 mb/ 229mb so i assumed he was running on intel graphics.
I tried to help him switch it but im not dure how on windows ten and his ASUS prime B250 plus MOBO... i tried getting in his BIOS but couldnt figure out how. We tried Del, f1,f2, f8 and non worked. How can we get into the bios and switch to his graphics card?
 
Solution
If monitor is plugged into graphics card, then graphics card is being used.
If monitor is plugged into motherboard, then integrated gpu is being used.

You can't change gpu by going into BIOS.