X399 Taichi - 3/4 GPU Issues
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=10328
Printed Date: 25 Jul 2025 at 7:14am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: X399 Taichi - 3/4 GPU Issues
Posted By: twik25
Subject: X399 Taichi - 3/4 GPU Issues
Date Posted: 06 Dec 2018 at 2:29am
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Hi everyone, I have been running 2 1080 TI on my x399 Taichi since December with no issues. I recently purchased 2 more for a quad GPU setup (no SLI - this is for Octane Render). I am able to get 3 GPUs to read if I occupy PCIE slots 1, 3, & 5. Slot 2 will read a single card, or even dual cards... but I can not get it to work with more than 2 GPUs. It either hangs up on Windows login, or only shows 2 GPUs in device manager IF it does login. I have tried both with and without using the additional Graphics 12v connector. I am running Windows 10, version 1709. M2.1 currently has my boot drive - NVMe M.2. Any ideas/help would be greatly appreciated. Thanks! |
Replies:
Posted By: xhue
Date Posted: 06 Dec 2018 at 7:06am
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Hi twik25, Although I'm not familiar with this particular mobo of yours, I know a few things, namely: - check for BIOS updates and apply accordingly - check mobo manual for details about multi-GPU configurations - you should UNINSTALL ALL GPU drivers before you make a physical/HW change to the GPU system; after that you should shut down the PC and tweak with GPUs - make sure you're using the latest nvidia drivers once you get back in Windows, older ones are known to hate Threadrippers |
Posted By: manodzit
Date Posted: 23 Dec 2018 at 5:30pm
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Hi twin, I am planning on the same motherboard with quad gpu did you find any solutions? Did it work? Are you able to run quad gpu on it? M. |
Posted By: twik25
Date Posted: 24 Dec 2018 at 11:36am
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Hi Manodzit, Yes I was able to get 4 gpus to work. To be honest, I am not sure what finally did it. Window forced an update to 1803 on me, and when I had some downtime between projects I took another stab at getting everything to work. I did fresh install of nvidia drivers, and then shut down and installed the additional card. It hung up on the windows login, and wouldn't let me do anything - but I let it keep going as I could tell something was working in the background (intermittent mouse icon). After 10 minutes or so, it gave me the login screen, and then froze. On restart, all 4 cards were seen by Device Manager, but 2 of them were disabled. I reinstalled Nvidia drivers (again) and it has been working great since. I think it was a combination of Windows 1803 and the double reinstall of the drivers that worked, but who knows. For what it is worth, I didn't want to have 4 gpus stacked in my machine (heat management), so I opted for going with a Thermaltake View 31 case that has vertical GPU bracket. So I have 3 stacked, and 1 vertical gpu using GPU riser cable. Going this route, I only have 1 card that is running hotter than others. During full render sessions on Octane, 3 cards are at 61C and one is at 75C (The middle one in the stack of 1080ti Turbos). |
Posted By: manodzit
Date Posted: 07 Jan 2019 at 3:38am
 Sweet news!
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