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USB issues on AMD 500 series motherboards

USB ports Malfunctions once in a while.

AMD announces issue with 500 series motherboards.

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You need to go to the BIOS to do this.

- Set PCIe x16 slot to Gen 3

- make sure Above 4G Decoding is disabled

- Disable resize BAR

- Finally, disable Global C-State Control under Peripherals->CPU Common Options

That should make USB devices (Onboard Bluetooth is on the USB controller) more stable.