Hello, so my problem is that i don't know how to turn off my graphic card. I have AMD processor AMD A4-6210 APU with AMD Radeon R3 Graphics and AMD Radeon R5 M-230. So my problem is that i don't know how to turn off R3 card so my system runs fully on R5, this will give me usage of whole 4GB of RAM (unlike now when i can only use 3,4 GB). I tried searching for it in BIOS to disable it, couldnt find it. Tried disableing R3 driver in device manager and it, insted of using R5, uses something called: Microsoft Basic Display Adapter. Then i wanted to disable dual graphic cards in Catalyst Centar but cant find it. Its quite bugging me now so please would anyone be so kind and help me. Thank you ahead.