Inquire about b450m pro4
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=12759
Printed Date: 03 Aug 2025 at 8:33pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Inquire about b450m pro4
Posted By: LordPlaybot
Subject: Inquire about b450m pro4
Date Posted: 28 Oct 2019 at 2:18pm
|
Hi. Before purchasing this board, I want to know if it supports IOMMU function. If yes, please let me know where can I setting. Thank a lot. |
Replies:
Posted By: Ray62
Date Posted: 28 Oct 2019 at 4:03pm
|
Loading the manual pdf on the asrock site for this board and searching for IOMMU shows an bios entry under AMD CBS for that. Depending on the bios version, the exact menu position can vary. ------------- Asrock Fatal1ty X370 Professional Gaming Offline Under test: MSI X570_MEG_ACE | AMD Ryzen 9 3900X | Scythe Mugen5 | 2x16GB F4-3200C14D-32GTZ@3466 | ASUS GeForce GTX 1080 Ti FE |
Posted By: ASRock_TSD
Date Posted: 28 Oct 2019 at 4:50pm
|
Dear LordPlaybot, Greetings, this is ASRock TSD. B450M Pro4 supports IOMMU function. Please refer to the following path to enable it under BIOS setup. BIOS\Advanced\AMD CBS\NBIO Common Options\NB Configuration\IOMMU Thanks! All the best, ASRock TSD |
Posted By: LordPlaybot
Date Posted: 08 Nov 2019 at 11:56am
Thanks asrock, i got it 
|