https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sat, 04 Apr 2026 14:37:39 +0000 Thu, 22 Apr 2021 23:13:08 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=18648 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=18648&PID=86542&title=ab350-pro4-bifurcation#86542 Author: ket
Subject: 18648
Posted: 22 Apr 2021 at 11:13pm

Are you using the latest UEFI for your board? Sounds like this might be a bug you need to contact asrock support about.]]> Thu, 22 Apr 2021 23:13:08 +0000 https://forum.asrock.com/forum_posts.asp?TID=18648&PID=86542&title=ab350-pro4-bifurcation#86542 https://forum.asrock.com/forum_posts.asp?TID=18648&PID=86463&title=ab350-pro4-bifurcation#86463 Author: erasor2010
Subject: 18648
Posted: 18 Apr 2021 at 10:27pm

Hi,

i try to setup PCIe Bifurcation on my AB350 Pro4 Motherboard.

I have an Supermicro RSC-R2UT-2E8R in the x16 Slot and set it to x8x8 in Advanced ->AMD PBS

In the Supermicro Riser are 2 M.2 in PCIe Adapter. BIOS is only Detecting one Card when Set to x8x8, when Set to x16 with one Card installed the Card gets detected, no matter what riser slot i use

Here some Images showing my Setup



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