Intel Motherboards - Z390 Taichi, Thunderbolt 3 AIC with 5k display

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Z390 Taichi, Thunderbolt 3 AIC with 5k display

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=10878
Printed Date: 09 Nov 2025 at 9:18am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Z390 Taichi, Thunderbolt 3 AIC with 5k display

Posted By: plivox
Subject: Z390 Taichi, Thunderbolt 3 AIC with 5k display
Date Posted: 12 Feb 2019 at 4:27am

Hello,

I'm having problems with Thunderbolt 3 AIC.

- Sometimes the screen goes black, 1 to 3 seconds then the display comes back, as if it was disconnected.
- At first boot (when the machine is off) the Thunderbolt card detects nothing connected, I have to disconnect the Thunderbolt cable from my screen then reconnect it and restart.

Detail of my configuration:

- AsRock Z390 Taichi (Bios: P1.90)
- Intel Core i9-9900K
- Kingston HyperX Predator (2x, 16GB, DDR4-3600, DIM
- ZOTAC GeForce RTX 2070 Mini
- Samsung 970 EVO (1000GB, M.2 2280)
- AsRock Thunderbolt 3 AIC
- LG Ultrafine 5k

And other forum post:

http://forum.asrock.com/forum_posts.asp?TID=10599&PN=1&title=z390-phantom-gaming-4-und-thunderboltaic3-instabil]z390-phantom-gaming-4-und-thunderboltaic3-instabil

Thank you for your help.
Vincent