AMD Motherboards - B550M-ITX/ac no display, no beeps

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B550M-ITX/ac no display, no beeps

Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=113389
Printed Date: 20 Nov 2025 at 12:34pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: B550M-ITX/ac no display, no beeps

Posted By: MacKtheHacK
Subject: B550M-ITX/ac no display, no beeps
Date Posted: 20 Nov 2025 at 4:45am

B550M-ITX/ac no display, no beeps on power up

Board: B550M-ITX/ac
CPU:Ryzen 5 4600G
RAM: 1 x OWC 16GB (OWC2R9D42R816GB)
PSU: 12v 160W Pico ATX

I've only got the power, CPU, RAM, a speaker and a fan plugged into this mobo. My monitor says no signal over HDMI or DisplayPort, but the fan runs so there's power to the board. If I pull the RAM, I get 3 beeps as expected. This CPU is supposed to be supported for all BIOS versions and has internal graphics, which I why I chose it. I've reset the CMOS, tried different RAM, tried each RAM slot, read all the forum posts I could find about this board. Both the 24-pin ATX and 8-pin 12V power connectors are plugged in.

What else can I try to get this board to boot?