rear usb 3.0

The problem is started since 2nd Sep,2019. Till then everything is working. Config : Processor Intel I5-4440 Board Gigabyte B85M-D3VA 1.0 Ram Corsair Vengeance 8GB Single Modeule PSU CoolerMaster Masterwatt Lite 500 W 80 PLUS GPU GTX-750 1GB SSD Kingston 240Gb HDD 1TB WD Blue...