endormmc Posted December 10, 2016 Share #1 Posted December 10, 2016 Hi When I upgraded my AsrockQ1900 to 8451 update 5 I have lost USB3 ports. They don't work at all. I was booting with jun's bootloader from a pen drive plugged in a USB3 port, now I have to do it from a USB2 port. I tried to select default setting in BIOS, clear cmos, various usb settings in BIOS, and it doesn't work. Maybe is just a coincidence, if someone with this mobo has upgraded successfully please tell me something. Anyway, if someone after upgrading to U5 has lost USB3 too..... Link to comment Share on other sites More sharing options...
Kussler Posted December 11, 2016 Share #2 Posted December 11, 2016 Hi, I have ASRock Q1900DC-ITX and just updated to 8451 U5 and my USB3.0 Ports work fine. Link to comment Share on other sites More sharing options...
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