AMD Motherboards - B450 gaming itx won?�t post

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B450 gaming itx won?�t post

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=14016
Printed Date: 18 Jul 2025 at 1:21am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: B450 gaming itx won?�t post

Posted By: Richinthebay
Subject: B450 gaming itx won?�t post
Date Posted: 06 Apr 2020 at 8:39pm

ASRock Not Posting after changing RAM Speed

Hey, I?�ve just built a pc:

Specs:

-Ryzen 5 2600.
-ASRock B450 gaming-ITX/ac.
-Vengeance LPX DRR4 2x8gb 3200mhz.
-GTX 1660.

First time the PC posted fine, Windows installed, showing both sticks of RAM at 2166mhz which is obviously normal. installed a few drivers and then updated the bios (to the correct compatibility for the ryzen)

After the restart I went into the bios and set the xmp profile for the RAM. As usual with xmp it caused a couple of blue screens, 3200 was a no, 3133 - nope. So we went down to 3000mhz and since then it has not posted once.

I have taken the ram out. Swapping them over. Only using 1 stick in each slot.

A full overnight powerdown. Nope. Fans spin and HDD light is red but won?�t post.

We have tried clearing the cmos, using a paper clip as a jumper (since ASRock don?�t provide you with anything despite the manual showing it!). Nope.

The last thing I tried was this:
Unplug the kettle lead.
Unplug the battery via the small white plug bottom left of mobo.
Bridge the jumper with the paper clip for 15minutes.

Nothing! Unfortunately this mobo has no LED indicators to let us know if it?�s RAM or CPU causing the issue.

Any ideas on what the problem is or how to fix would be greatly appreciated!

Thanks