AMD Motherboards - Differences between B450M-HDV and R4.0

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Differences between B450M-HDV and R4.0

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=11108
Printed Date: 27 Jul 2025 at 3:03pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Differences between B450M-HDV and R4.0

Posted By: Niccador
Subject: Differences between B450M-HDV and R4.0
Date Posted: 15 Mar 2019 at 12:26pm

Like the topic implies, I'm wondering if anyone can enlighten me on the (technical) differences between the original B450M-HDV board, and the newer R4.0 version?

I notice from the images that there appears to be a different number of VRMs/Chokes on the R4, along with a different layout of those. (No VRM heatsink either...and the chipset heatsink appears to be different/smaller.)

But do these changes imply an improvement in build quality, or a decline?

Replies:

Posted By: xhue
Date Posted: 17 Mar 2019 at 5:18pm

Well, in my opinion they wouldn't make 4 revisions of the board of there was nothing wrong with the original.

I doubt anyone from ASRock will publicly acknowledge any issues or differences.