Intel Motherboards - No post when connected to TV

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No post when connected to TV

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=19034
Printed Date: 26 Jul 2025 at 3:29pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: No post when connected to TV

Posted By: ericepp
Subject: No post when connected to TV
Date Posted: 07 Jun 2021 at 1:39pm

I have a Z590 Taichi in my new build and I am connected to my Samsung 4K TV with an HDMI cable from the GPU. When I try to boot the PC, I get Error 97. If I connect it to my wife's cheap Dell monitor that she uses for work, it has no such issue.

I have had this TV since 2014 and have connected at least half a dozen PCs to it with no problem. I actually have it connected through my Denon AVR, but it has the same issue if connected directly to the TV. If I use a Display Port output from the GPU with a DP to HDMI adapter and an HDMI cable connected to my TV, it works fine. I currently have it connected that way, just to get past the POST. If I have to reboot, it will get past POST because it sees the TV on the DP.

I don't know that I have ever had a computer that needed to be connected to a monitor to complete a POST. What if I wanted to use remote desktop and not have a monitor connected to my PC? This is a $450 board. Why do I need a monitor? Why do I need a specific type of monitor or cable interface to get through the POST?

Can anybody help me make sense of this?

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Z590 Taichi
i7-11700K
Vengeance LPX 3200 (2x16)
Geforce 3090 FTW3 Ultra
Supernova 850 G+ PSU