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AMD 880G chipset north bridge issues

Hello,
I am using Gigabyte GA 880GM USB 3 mother board I have a chipset driver that install amd usb filter and northbridge filter driver. When I uninstall my catalyst driver to update it, it would uninstall the usb filter driver. When I downloaded the newer version of the catalyst driver from AMD, it doesn't include the usb filter nor the northbridge filter driver. Does that mean they are not necessary?
!