AMD Motherboards - No PCIe Gen 3 option in BIOS?

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No PCIe Gen 3 option in BIOS?

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=11942
Printed Date: 28 Jul 2025 at 11:31pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: No PCIe Gen 3 option in BIOS?

Posted By: JasonASR
Subject: No PCIe Gen 3 option in BIOS?
Date Posted: 19 Jul 2019 at 4:33pm

I am using an ASRock X470 Gaming ITX/ac motherboard with BIOS 3.30. I am looking under AMD PBS section, and the options for Force PCIe Gen Speed are Auto, Gen2, Gen1. It is set to Auto, and Radeon Adrenalin indicates the bus setting is PCI Express 3.0 x16. However, I am curious as to why there is no option for a Gen3.

Replies:

Posted By: Jakob84
Date Posted: 20 Jul 2019 at 8:57am

Same problem here. i run crossfire and it dosnt work on auto.. the system will either turn off primary gpu or secondary gpu doing boot.

I have x470 taichi and 3700x... patiently waiting for next bios ><