How to enable USB via Thunderbolt AIC on z370 Pro4
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=13929
Printed Date: 28 Dec 2024 at 1:34am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: How to enable USB via Thunderbolt AIC on z370 Pro4
Posted By: AndreasD
Subject: How to enable USB via Thunderbolt AIC on z370 Pro4
Date Posted: 26 Mar 2020 at 5:25pm
Good morning,
I have the following issue: my USB keyboard does not work in a pre-boot if it is connected via Thunderbolt.
My setup: I have a Z370 Pro4 with the Tunderbolt 3 AIC Rev 2.0 card in my PCIE4 slot. On the Port 1 of my Thunderbolt AIC Card, I have plugged in the Keninsgton DS5200T Docking Station and in the docking stations USB ports I have plugged in my devices.
Now all work well once Windows has started, but in the pre-boot environment when I need to enter a password before Windows is booting the keyboard is dead.
In my UEFI I have activated "Secure" as the security status for the Tunderbolt security settings and in Windows the Kinsington dockingstation is accepted as a secure device.
How can I now access my USB devices connected via Thunderbolt in pre-boot?
Thanks
Andreas
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Replies:
Posted By: ASRock_TSD
Date Posted: 27 Mar 2020 at 8:17pm
Dear AndreasD,
Thank you or posting your query to ASRock forum.
Regarding your question, the thunderbolt driver will start functioning once the system goes into the OS.
During pre-boot(also called BIOS), since there are no thunderbolt drivers USB devices might not work.
With thanks,
ASRock TSD
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Posted By: AndreasD
Date Posted: 28 Mar 2020 at 1:39am
Hi TSD,
thanks for the reply.
But that is no solution. How can this be? All other mainboard suppliers I know have the option,, even the cheap ones, no?
There must be a way?
Thanks
Andreas
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