X470D4U with PCIe GPU

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   hello, i updated bios to 4.20 then to 4.26
after that, my choice of primary graphics adapter is also inactive in bios 3.50
What do i do?

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igorekDE Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 18 Sep 2022 Status: Offline Points: 50	Post Options Post Reply Quote igorekDE Report Post Thanks(0) Quote Reply Topic: X470D4U with PCIe GPU Posted: 20 Sep 2022 at 10:43am
	hello, i updated bios to 4.20 then to 4.26 after that, my choice of primary graphics adapter is also inactive in bios 3.50 What do i do?

lliax Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 18 Jan 2021 Location: Kaliningrad Status: Offline Points: 47	Post Options Post Reply Quote lliax Report Post Thanks(0) Quote Reply Posted: 29 Sep 2021 at 5:39am
	Addition. I managed to start the GPU S7150 normally at Windows 10, but I can't do it in Windows Server 2019. On the same computer, with exactly the same settings. Maybe it's not about the drive startup modes. Maybe in win Server 2019 turned off support for earlier video cards.

lliax Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 18 Jan 2021 Location: Kaliningrad Status: Offline Points: 47	Post Options Post Reply Quote lliax Report Post Thanks(0) Quote Reply Posted: 29 Sep 2021 at 1:29am
	The BIOS settings from my post above relate primarily to the mxgpu mode setting for the AMD S7150 video card. I installed Windows today and established the following fact. Integrated graphics work with artifacts when running windows from the legacy disk. Including I was unable to put the drivers for the video card in the pci slot. In windows startup mode from a UEFI disk, the integrated graphics start and the drivers are installed normally.

NoHTTPS? Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 20 Feb 2020 Status: Offline Points: 19	Post Options Post Reply Quote NoHTTPS? Report Post Thanks(0) Quote Reply Posted: 31 Jul 2021 at 7:44pm
	you just saved me a whole lot of headache! thanks brother

lliax Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 18 Jan 2021 Location: Kaliningrad Status: Offline Points: 47	Post Options Post Reply Quote lliax Report Post Thanks(1) Quote Reply Posted: 19 Jan 2021 at 2:14am
	I'm sorry, the video card started with the correct settings. Mount videocard in to PCIe slot nuber 6! (16 lanes PCIe) Default Bios 3.50 Enabled: 1. ADVANCED: 1.1. Chipset Configuration: onboard vga abode 4G deocding sr-iov 1.2. AMD CBS -> NBIO Common Opions: IOMMU ACS Support PCIe ARI Support PCIe ARI Enumeration PCIe Teb Bit Tag Support PCIe ARI Support 2. Boot: CSM -> UEFI only for launch video and other storage, PCIe6 - uefi

lliax Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 18 Jan 2021 Location: Kaliningrad Status: Offline Points: 47	Post Options Post Reply Quote lliax Report Post Thanks(0) Quote Reply Posted: 18 Jan 2021 at 11:26pm
	Unfortunately, the card s7150x2 doesn't work with virtualization enabled (SR-IOV enabled). BIOS post: dxe pci bus enumeration I bought a processor 3900X, 128GB RAM for this motherboard. And it turned out that in vain! I will put s7150x2 in the working Intel server based on Supermicro and double Xeon E5-2667v2. For reference, I confirm that the built-in and external video cards are launched simultaneously when the option is enabled: BIOS -> Advanced -> Chipset and change the Onboard VGA setting from Auto to Enabled, this way at least the dGPU won't disable the onboard VGA

mrfreitag Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 08 Dec 2020 Status: Offline Points: 1	Post Options Post Reply Quote mrfreitag Report Post Thanks(0) Quote Reply Posted: 08 Dec 2020 at 5:23am
	I also had the same problem, setting the PCIE to 2x8 instead of 1x16 solved it for me. Does not seem to affect the performance, though: https://www.gamersnexus.net/guides/2488-pci-e-3-x8-vs-x16-performance-impact-on-gpus

Twalks Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 07 Sep 2020 Status: Offline Points: 1	Post Options Post Reply Quote Twalks Report Post Thanks(0) Quote Reply Posted: 07 Sep 2020 at 7:32am
	I've had the same issue @starkruzr with my smaller gpu (asus b750pi), had to rip out the 980ti from a different build to get it to boot properly. Having to order a smaller, modern gpu because the massive 980 wont fit in the Silverstone case...

starkruzr Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 17 May 2020 Status: Offline Points: 1	Post Options Post Reply Quote starkruzr Report Post Thanks(0) Quote Reply Posted: 17 May 2020 at 12:28pm
	Has anyone else noticed that regardless of whether the GPU is set as primary it just... doesn't show up in Linux? At all? Like not even in lspci, or in the system inventory in IPMI? I have had this problem both with an AMD GPU with an external power source and an NVidia GPU with just PCIe as the power source. The fans spin, but it's like there's no communication. Both of these cards have been confirmed to work on other machines.

FLPPasRock Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 04 May 2017 Status: Offline Points: 12	Post Options Post Reply Quote FLPPasRock Report Post Thanks(0) Quote Reply Posted: 04 Nov 2019 at 11:52pm
	Hope that the options mentioned are going to help you! But it doesn't solve the issue that the user cannot change the greyed-out setting specifying what GPU should be used as the primary output device :( Level1Techs is a rather niche tech YouTube channel that recently assisted Gamer's Nexus (another YouTube channel) with the build of a NAS with the ASRock Rack X470D4U2-2T (the same as the X40D4U but with dual 10 GbE onboard): https://www.youtube.com/watch?v=Hix0l8cFaMw The large Level1Techs forum thread I mentioned where X470D4U users help each other out is: https://forum.level1techs.com/t/asrock-rack-has-created-the-first-am4-socket-server-board/139490