https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sat, 04 Apr 2026 10:39:09 +0000 Mon, 10 Jun 2024 04:16:25 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=41896 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=41896&PID=125080&title=how-to-set-primary-gpu-on-x399m-taichi#125080 Author: SerchTech
Subject: 41896
Posted: 10 Jun 2024 at 4:16am

It's been a while since I used Multi-GPU on my X399 Taichi (non-M) but I remember that it could not be configured on BIOS, nor on Windows, I read some comments saying that it is possible on Linux but I'd never try it.

By connecting the PCIe 3 GPU to the monitor, you may be able to get Windows to recognize it as primary, but you'll not see the POST screen (ASRock Logo) nor will you be able to access BIOS.

In other words, there's no way to set the GPU PCIe 3 as primary during boot ... but perhaps ASRock support knows how to do it or if it's possible, try contacting them

Good luck]]> Mon, 10 Jun 2024 04:16:25 +0000 https://forum.asrock.com/forum_posts.asp?TID=41896&PID=125080&title=how-to-set-primary-gpu-on-x399m-taichi#125080 https://forum.asrock.com/forum_posts.asp?TID=41896&PID=124536&title=how-to-set-primary-gpu-on-x399m-taichi#124536 Author: Libadoxon
Subject: 41896
Posted: 06 Jun 2024 at 4:18am

I have a system with two AMD GPUs, one in PCIe 1 and the other in PCIe 3. The GPU I want to use is in PCIe 3 but the one from PCIe 1 gets used instead. How do I change the PCIe slot that gets used for the boot?]]> Thu, 06 Jun 2024 04:18:02 +0000 https://forum.asrock.com/forum_posts.asp?TID=41896&PID=124536&title=how-to-set-primary-gpu-on-x399m-taichi#124536