I use AMD Catalyst Un-install Utility to uninstall all the amd driver, install 890 Chipset driver form Biostar website. then install the latest Latest AMD Catalyst™ Drivers for Radeon™ HD 7000 Windows 7 64-bit Driver.
*also install deamoon tools lite version(with sptd 1.83) <---some google results say this will cause the USB port unable to work correctly....
so far the pervious connected usb device(keyboard, mouse, speaker,nokia phone cable, usb 3g) are works well, but cannot detect/ regonized any new connect USB device(thumb drive, joypad) after install the AMD driver acept the previous connected usb (maybe cause from sptd 1.83)
i will try your suggestion 1st.....thanks
will get follow up soon...
windows 7 ultimate 64bit
biostar TA890GXE motherboard,
PowerColor HD7950 PCS+
07:16 AM by