Z87 Extreme6 no longer boots from usb mouse

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   Although I changed nothing in the bios, suddenly the same keyboard and mouse that used to turn on the pc when enabled in legacy bios do not work. The pc does not respond to the space bar key or mouse clicks at all. I reset the MB to default settings except for allow start by usb devices.

I did have occasion to reset Windows 10 recently but I don't think that's relevant, is it?

Thanks.

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philo Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 25 Dec 2022 Status: Offline Points: 20	Post Options Post Reply Quote philo Report Post Thanks(0) Quote Reply Topic: Z87 Extreme6 no longer boots from usb mouse Posted: 25 Dec 2022 at 2:44am
	Although I changed nothing in the bios, suddenly the same keyboard and mouse that used to turn on the pc when enabled in legacy bios do not work. The pc does not respond to the space bar key or mouse clicks at all. I reset the MB to default settings except for allow start by usb devices. I did have occasion to reset Windows 10 recently but I don't think that's relevant, is it? Thanks.

threadzipper1957 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 05 Mar 2022 Status: Offline Points: 9335	Post Options Post Reply Quote threadzipper1957 Report Post Thanks(0) Quote Reply Posted: 07 Apr 2023 at 11:12pm
	Older Windows versions Used the EHCI USB protocol, starting from Windows 10, Microsoft, Intel and AMD have switched to the XHCI protocol Try disconencting the harddisks and other SATA devices, then the system should go into BIOS, and see if mice and keyboard are working. Also don't use a wireless keybaord and mouse, the USB dongles, can destroy all USB communication.
	Kind Regards