AMD Motherboards - X870 not POSTing on new build

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X870 not POSTing on new build

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=99016
Printed Date: 24 Feb 2025 at 11:55pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: X870 not POSTing on new build

Posted By: djoeh
Subject: X870 not POSTing on new build
Date Posted: 24 Feb 2025 at 5:17pm

I just made a new build with the X870 pro rs wifi MB, and the red+yellow lights come on to indicate a problem with the CPU or DRAM.
CPU: Ryzen 7 9700x
RAM: G.Skill DDR5 5200 16G installed in slot A2
PSU: be quiet! 1000W

MB is getting power in both 8-pin slots as well as the 24-pin slot.

I've tried flashing a new BIOS version in the hopes that might fix things but I wasn't able to confirm that I had done that correctly, as the flashback light did not come on as I pressed the button.

I'm wondering if there's any potential BIOS issues with the CPU I chose or if I'll have to go through some troubleshooting to see if my CPU or RAM is dead on arrival.

Replies:

Posted By: djoeh
Date Posted: 24 Feb 2025 at 5:40pm

If it helps, the serial number of my G.Skill RAM is F5-5200J3636C16GX2-RS5W