Intel Motherboards - Display doesn't work when GPU installed

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Display doesn't work when GPU installed

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=69154
Printed Date: 29 Sep 2024 at 3:22pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Display doesn't work when GPU installed

Posted By: grysqrl
Subject: Display doesn't work when GPU installed
Date Posted: 29 Sep 2024 at 11:32am

I am building a new computer using a Z790 Riptide board. The power turns on fine - all of the lights and the fans go on. However, when I try to connect a monitor to the HDMI port on the motherboard, it doesn't get a signal. I tried the same cable/monitor combo with another computer and it worked fine.

One thing I tried was removing the GPU (a Geforce RTX 4070 Ti Super) and then the display started working and I was able to get into the bios. When I reinstalled the GPU, it stopped working again. I've tried a couple different power adapter cables to connect the GPU to the PSU with no change.

Any idea what's going on? What should I try next?