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Z87 Extreme4 USB2.0 Ports Not Enabled At Power Up

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pjasrock View Drop Down
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    Posted: 10 Apr 2022 at 8:59am
I have a ASRock Z87 Extreme4 that is working fine except that the USB2.0 ports are not enabled on power up. As a result, I cannot boot from a USB thumb drive nor use a USB keyboard and mouse in the UEFI menus. I'm only able to use the PS/2 keyboard port.

I have cleared the CMOS. Can anyone tell me how to go from there to a working USB2.0 port.

By the way, once the computer has booted in Ubuntu, the USB2.0 ports work.
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threadzipper1957 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote threadzipper1957 Quote  Post ReplyReply Direct Link To This Post Posted: 09 Aug 2022 at 9:13pm
When you enable Ultra Fast boot in the BIOS, the detection of USB ports, is disabled.
In Windows 10, it is best to disable fast boot, or Ultra Fast Boot
Kind Regards
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pjasrock View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pjasrock Quote  Post ReplyReply Direct Link To This Post Posted: 10 Aug 2022 at 12:49am
I removed a USB adapter from one of the PCI-E connector and the USB2.0 ports now work at power up. It was a Rosewill RC-509 PCI-E to USB3.1 Expansion Card.
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