- Apr 26, 2015
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On an Asus Sabertooth 990FX R2 motherboard I can't get the USB 3 system to work at all. The Device Manager in Control Panel shows 3 USB Controller warnings and 2 Bluetooth warnings. There are 4 USB 3 sockets at the rear of the motherboard, none of which work. All USB 2 sockets work fine. Any help with this problem will be much appreciated. Thanks.
Clive.
Clive.
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