So I have a Sapphire R7 250 2GB DDR3 video card and I needed more performance in Fallout 4 so I started overclocking with AMD Radeon Settings which comes after you install the video card drivers. I'm an idiot and I didn't know what I was doing so I cranked up GPU clock 100 MHz up and memory clock from 900MHz to 1200MHz and my Power Control to 20% which crashed the drivers and crashed Fallout 4. So i went in again and I changed from 1200MHz to 1000MHz and it didn't crash. I was playing like 30 minutes with a 10 fps increase until the game started stuttering hard. So I put everything back to normal but it was still stuttering i reinstalled the drivers but it didn't do anything and now all my games have strange stuttering when i walk around or drive cars. Though everthing else is ok like people moving beside me are not stuttering but when i start to move it starts to stutter. So my question is did i void my warranty because im an idiot?