AMD Motherboards - ROMED8-2T Bus Degraded - Asserted with 2 x RTX3090

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ROMED8-2T Bus Degraded - Asserted with 2 x RTX3090

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=18024
Printed Date: 18 Jul 2025 at 3:38pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: ROMED8-2T Bus Degraded - Asserted with 2 x RTX3090

Posted By: samhodge
Subject: ROMED8-2T Bus Degraded - Asserted with 2 x RTX3090
Date Posted: 05 Feb 2021 at 2:44pm

I have put this to the technical support.

I run a pretty tidy setup:
MB Model Name      ROMED8-2T

BMC Firmware Version 1.00.00
BIOS Firmware Version P1.10
PSP Firmware Version 0.C.0.78

With
CPU:      AMD EPYC 7402P 24-Core Processor
RAM: 2 x SK Hynix HMAA8GL7CPR4N-WM 2933 MT/s 32GB
NVMe: Samsung SSD 980 PRO 1TB
HDD: 2 x WDC WD40EFRX-68N32N0
GPU: PCIe 2 x NVIDIA 3090 RTX, 1 x NVIDIA 1030

I keep getting

347 | 02/05/2021, 05:54:19 | BIOS             | Critical Interrupt               | Bus Degraded - Asserted
      |                      |                  |                                    | Bus number: 0x01
      |                      |                  |                                    | Link speed degraded

The OS keeps working and the Display locks up somewhat.

I use IOMMU PCIe passthrough from a Ubuntu 20.04 host to a Ubuntu 20.04 guest using libvirt and qemu

What can I do to fix this problem.

The system was initially installed on 27/10/2020

Replies:

Posted By: Cremotion
Date Posted: 15 Feb 2023 at 10:25pm

Got the same issue. Any idea to fix this?