Hi to all dear members and moderaters. I have a dell inspiron 5520 with switchable graphic card (intel hd 4000 + amd ati 7670) but there is no option in bios to change the default graphic card I have opend my bios file , QCL00A13.fd , with PhoenixTool 2.14. ( I have downloaded latest dell bios file : Inspiron_5520_A13.exe ) In structure section , there is options for Switchable Graphic . In the dump folder they are in .rom format and when you extract them , they saved in .mod format. How do i change them ? which program can handle it ? do this way help me to change the default graphic card to ati amd ? please help me. thanks in advance.