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‎10-19-2024 01:28 AM

HP Recommended
Product: HP Z840 Base Model Workstation

Hello everybody. As per the title, keyboard and mouse (and all USBs and input devices) are working OK in the BIOS environment but as soon as Windows starts, all input devices are dead.

I have tried CMOS reset but it will not work.

My BIOS bversion is 2.62

Can you help me please? This is very frustrating! Thanks!

Category:
2 REPLIES 2

‎10-19-2024 02:08 AM

HP Recommended

What i did was to disable xHCI in BIOS, rebooted and now it works!

Which means i downgraded from USB3 to USB2...

Thn back to BIOS and i enabled xHCI again. It works OK.... weird..

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‎10-20-2024 07:46 PM

HP Recommended

if it works in the bios but not windows then you have a OS or OS driver related issue

 

is your kbd/mouse ps2 usb or wireless?

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