721521-601, HP System board (motherboard) - Features the Mobile Intel HM76 chipset with AMD Radeon HD 8750M 1GB discrete graphics - Includes replacement thermal material - For use in models with Windows 8 Professional Edition | EET
AMD HD 8750M---is it even working???how do i know??? plz help | TechPowerUp Forums
AMD Radeon HD 8750M stooped working in Windows 8.1 "Error code 43" - Microsoft Community