A few days ago a dell Engineer replaced the fan and motherboard of my inspiron 15R 5520!
Earlier,AMD Radon worked fine when BIOS version was A07 but now with new motherboard and BIOS version A11 Windows work only when there is no AMD drivers installed or in safe mode.
I guess AMD driver is not compatible with BIOS A11 or new motherboard.
May be new mother board do not contain a AMD Radon GPU!!
Dell costumer executives are not getting my problem!
please help..