This particular video is going to be one of those videos that withstands time due to the high content value. Thank you so much for sharing with the world your knowledge!

I 've been having such a long troubleshooting session with passing through GPU, but a BIOS update did a trick! Thank you so much for making such a valuable resources when it comes to Unraid. I really appreciate it.

Thanks Spaceinvader! I've installed my gtx1660 super card today and got it working through this video and your earlier ones on installing the Windows VM. I needed to pull one extra trick to avoid the error messages upon trying to start the VM. My card had 2 extra devices in its IOMMU group: an NVIDIA serial bus and USB Controller. As these were apparently on the physical card, I've added these to the Syslinux configuration and then added them in the VM template as ' other pic devices'.

Thank you for this video! I've been trying everything under the sun to pass through my GTX 780 to a Windows 10 VM. I was always getting error code 43. Multifunction fixed my issue.

I have to agree on Q35. Been using i440fx on my 1950x and 1080ti. More performance using Q35, not only gaming and on encoding as well. Even I used the 2 die (28 cores+HT) it performs really well. BTW thanks for the tutorials, only a week I built my own Unraid server. I can't build that without this channel and here I am again learned something new with multifunction etc. Nice channel.

changing to legacy resolved my code 43 issue, thanks for making all these unraid videos! keep it up

Thank you so much. You fixed the problem I had with GPU passthrough and the virtual machine freezing on reboot. Got it resolved thanks to this video.

The technicalities of the bus, function, virtual vs. real can really throw you with their combinations! I've got it working now.. prior to your video I was wondering what the heck was up with that little technicality- "Hey, where is my gfx card sound!?" 3900x, x570, dual Vega Frontier edition cards - Huge fan of these cards! Super epic. Great for Hackintosh and engineering use.

Excellent and still relevant in 24. I'm running a Quadro A2000. This video MUCH easier than trying to edit the XML without errors. Thank you sir!

Dang! i never realised this. Never figured out why sometimes i had more luck woth gpu passthrough, but now it becomes so simple.

the time stamp 4:55 is GOLD that is what all my issues were... I had no video and just changing theses 2 numbers made my card work... Thank you so much SI!! (watch the whole explanation)

Thank you for the great video. I had pain to GPU passthrough, but solved by follow the video.

7:20 Gold. Thank you so much! Since I'm editing the underlying XML configuration file by hand (still learning plus I don't have any window manager on my server installation so that I can use the only one GPU I have for the VM) I actually completely missed the second element so 1)it was really useful to see that it is actually present and what it is for and 2)understand the possible conflicts one might encounter if using tools for automatic device configuration (like in your case). Thank you again for this useful tutorial!

Great video again Ed! Keep on the excellent content you make:)

You superstar SpaceInvader, this XML edit is exactly what i needed.

Another brilliant video thanks Ed

Awesome, I've always had issues with 43. multifunction fixes it immediately. Thank you.

Helpful tutorial as always!

I like the visualization you just did.

I tried to add the bios rom from tech powered up for my GPU but when I start the VM I get no picture so I had to remove the rom. Thanks for the tip about multifunction devices on the same bus. I was able to make that change at least. Also just wanted to say I found your channel recently and it has helped me tremendously. You're awesome, keep up the amazing work!!!

Another great video Ed! Thanks for always sharing with us.💖👌👍😎JP

This video has saved me many times

Love watching your videos, thanks for taking the time to create all of these and helping us Unraid newbs out! Speaking of on board sound. I have the worst issue right now with Ryzen 9 3900x and getting it to work with an x570 Taichi. I dove a little bit into some reddit and Unraid forums and I never really saw any answers to this besides it could be the version (Kernel: Linux 4.19.107-Unraid x86_64) of Unraid Linux kernel being used and something to do with the agesea of the mother board? not sure if all of that sounds right but just curious if this is something you or anyone else ran into and can offer experience and steps to take. I was using the Nvidia sound for awhile but it gave me nothing but pops and clicks with my music production stuff so I decided to get an audio interface dedicated to the Win10 VM and has been working like a charm since.

Wow, Great Job!

For any ryzen users. I've recently had a "Unknown pci header type '127' ". After a fresh start of the server the graphics card can be used to start the VM, but no video output will be displayed. The VM also can't start correctly and needs to be forced to shutdown. Upon restarting the vm the "Unknown pci header type '127' " will appear until the next server restart. This issue seems to be a problem with the recent ryzen motherboard bios supporting the 3000 series of cpus. Downgrade the motherboard bios far enough and the error should dissapear.

THANK YOU!!!!!!!

Are the boys at Limetech working on preserving XML edits? That would be awesome.

I did eventually find this solution (multifunction) online but I had no idea how/why it worked. And also that editing the UI and saving regenerates a new XML file so you lose all changes that dont map to the UI (seriously Unraid, maybe compare both files and tell me or at least show a warning?) But I would have saved so much time and frustration if I just watched this video lol. I gotta learn to do a bit more research before jumping in. However, there IS something I found out that was only partially mentioned in the video. You're correct in that if you don't need UEFI you should disable it, but I find out one specific feature was causing my Error 43's: Above 4G Decoding and ReBAR. After going into my bios and turning those off, my error 43's disappeared and I'm booting UEFI. But yeah best practice is just to do legacy Good shoutout on the vBios too. Even though I was using an AMD card (5700 XT) as my only GPU, I needed to pass the vBios through for the GPU to actually hand off successfully to the VM and back to unraid. Otherwise I'd get no video output upon starting the VM as the VM takes the GPU from Unraid but can't use it. I think you mentioned in a later vid that you need to pass the vBios through from Navi and newer. I did try to dumper script you mentioned in another video, but my GPU was primary and it didnt like me. Luckily, the GPU I bought had had a corrupted bios so I already had the exact bios file downloaded and flashed onto the card via an AM3+ board with a built in GPU lol, so I just put that file into the iso share and passed it in.

Thank you!

4 years later. I still need to do this multifunction='on' thingy majumbo

Thank you for the GPU Passthrough videos! I followed the earlier videos on how to setup a win10 gaming vm but all I got was a black screen and no boot without any errors, so I was kinda lost after that 🤔 I followed your steps with the multifunction in XML and switched to Q35 as I am using an AMD GPU, and it all works like a charm now!

As always another great video! Is the Nvidia Plugin still needed? I don't really get what is needed for since you can configure it manually. Thanks for an explanation :-)

Hi, I absolutely love your videos they have been super helpful. I am using a bare metal hard drive to run my VM and its been working great for a while but then my unraid flash drive failed and the system booted into windows. Got that fixed but now, when I try to run the Windows VM I get the dreaded code 43 and my 1070 will not start, any thoughts?

Hi Ed, might a video on setting up a UPS with Unraid be a good idea? Seems intimidating to me, but also highly important.

Hello, I am glad to see your video. I want to ask about the AMD core display driver that I turned on in Unraid, but it can’t be used in emby? Is there a good way?

Thank you for a great tips. You are helping a lot to a newbies(and I guess not only) like me.

Thanks a lot! You saved the Life of an Graphicscard...! xD

Loving the videos - Any chance you'd do a guild on getting jasonbean's - Apache Guacamole container working with 2-factor?

Something I noticed - at least on Ubuntu Server 20.04 I get an error from the XML "No type specified for device address". It seems that specifying the type of the device "" is not enough (at least on newer versions of libvirt) and you have to add the type of the device to the address element as well.

Hey Spaceinvader One great video, can you make a video on how to setup an email server (smtp & imap) in unraid?

your videos are amazing, thanks a lot!! I tried to passtrhough a zotac nvidia RTX 2070 with the modified vbios as you mention and i can see screen but the drivers are not isntalled :( the screen is detected as a generic microsoft video card, so therefore nvidia drivers are not installed saying no device detected :( any idea? (yes I passed through the 4 devices of the gpu(gpu, audio, usb,serial)

Something I’m not clear on is if when you dedicate cores to the VM that they are permanently assigned to it and they aren’t able to be used by unraid when the VM is off?

Would you be able to do a video on setting up SteamCMD and getting a game working?

Hey, is there a possability to create a batch file, that starts a unRaid-VM remotely via a PC on the network? Thank you for sharing your knowledge with us muggles. Greetings from Germany!

this used to work great, however I just tried it with a win11 vm and win10 vm, when I add the multifunction='on' and change them to matching bus/slot, the vm will no longer initialize display, I tried to reset it by switching back to vnc, same thing. I had to delete the vm and create a new one using the existing disk to recover it. What gives?

I'm looking for video card between $100-$150, that will work well in windows and mcOS VM. Any recommendations?

‌Hello spaceinvader thanks for such useful videos, as i am going to build my first desktop computer/server(i use one laptop), the purpose is to use unraid to get nas, pfsense, security camera..htcp plex etc..i have decided to build max of two desktops/server...as i am following your ideas...can u give me an idea of your setup..the gears you use..your work flow..in a short video.(if i had not seen that video..any link)...thanks

Awesome! 🙂

Nice tutorial ! Waiting for Bitwarden video ^^

Curious if it's possible to have 2 1080Ti's, each passed through to a different VM (Win10)... Any thoughts? I only see one instance of the 1080Ti. :/

I'm wondering if you've ever had to deal with an AMD gpu that produces the "unknown pci header type 127" error. Most posts I've found only seem to have this problem after shutting a VM down, but I'm encountering it at the VM startup. Specifically, I'm trying to use an r9 390x in an unraid 6.8.3 to be used for gpu transcoding. The guest vm is ubunbtu 18.04. The host machine is a 2700x on an x470 Taichi. Any tips or input you might have would be greatly appreciated.

Passthrough worked well, no issues! Now i cant seem to install the nvidia drivers.. how can i fix this? No error messages.. i install driver and everything is like before.. its driving me nuts..

Have you had any issues with passthrough on newer GPUs? I have had issues with 20 and 30 series cards.

Thank you very much for video. One thing I did not understand correct is why are you passing custom vBios? I've seen tutorials without this step and they worked. Why is it necessary to use modified GPU vBios? Can wrong vBios damage the GPU? Thanks

I added a link to this video on the Unraid form for code 43

Hello, i have a R590 GPU, when i install on a vm the vm is in the booting freezing or when it is bootet it is not in the device list. the 1050ti where i have it functions without problems. can you help me?

i want to see you gettin this to work with muxless notebooks

what its the most cheap gpu to have as primery gpu to unraid ?

As always you explain the un-explainable.. Thanks again!

Well I don't even have the grahpics card in the xml file. I've setup everything however the card is not shown there

Hi, can I use a incompatible gpu (gtx1080) with this method on Mac OS vm ? Or do I have to stick with amd gpu ?

Want that animated banner!

When using a RTX6000/8000 is it possible to use them by multiple VMs at once in Unraid? -> Nvidia GRID vGPU

hello, was wondering where u got the vbios from?

My XML for Catalina and Win 10 both have the GPU and Audio on different buses instead of slots, any idea what should I do here? 0x04 and 0x05 for Bus, 0x00 for Slot. This is an AMD RX580, before the edits it would show as a audio device in Windows but nothing would play out, now no device shows.

I could do with someones help with my RX 570 with passthrough... My build is a; AsusTek TUF B450-Gaming Plus MB with latest BIOS update in mid December 2019 AMD 3700X Processor ASUS Strix RX 570 4GB Graphics card 2x 8GB Crosair 2666Mhz RAM 2x Sata 512GB SSD 3x 3TB Spinny 3.5 hard drives I am running Unraid 6.8.1 However when it comes to VM's like Windows 10 and OSX, I cannot get my AMD ASUS RX570 to passthrough to the VM. I have tried the list of things below but no matter I do I get the spinning red arrows when I start either VM and then the whole of UNRAID crashes and I have to hard reboot the whole server. Can anyone help in what I can do. 1. Downloaded the TechPowerup VBIOS for the GPU here and then dropped in in the XML as per spaceinvader One with a Nvidia card but this is a AMD card www.techpowerup.com/vgabios/197590/asus-rx570-4096-170406 2. Turned on ACS on VM settings to 'Downstream' 3. Updated Syslinux configuration with - rcu_nocbs=0-15 (my CPU has 8 cores and 16 threads) I have done all this but it still doesnt work, also running on Q35 - 4.2

CROSSFIRE or SLI please :) can you do some cross fire and SLI experiments please? i have cross fire working reliably on Unraid in a windows 10 VM both GPU's definitely working but haven't compared to bare metal performance. i wonder if SLI is also possible with a similar XML. For cross fire machine type needs to be Q35, add DMI-topci bridge, Each card must be on its own Root port, with its sound card. i think my PCIE root ports are a bit of a mess - i couldnt ever figure out what "index", "target Chassis" and "port" were, but eventually got both cards working with the below XML changes ### Add dmi-to-PCI Bridge Type i82801b11-bridge #### #### GPU 1 ##### #### GPU 2 #####

I have a GTX1050 that puts the GPU and AUDIO on separate bare metal busses. No matter the configuration I can never get the audio to pass. Sometimes the VM won't throw a Code 43 and sometimes it will. It always fails to pass the audio with a no permission error.

It's possible share 1 GPU with 2 ir more VMs spliting GPU memory RAM?

Hi Spaceinvader, i really like your videos, i have been able to learn about unraid and setup my own Win 10 VM, i have dumped my vbios and can get display while using my msi 1050ti card but device says error code 43, any suggestions would be very helpful

Is it possible to passthrough a msi rx 560?

What about the RTX cards do they have the usb also

device '0000:03:00.0' assigned more than once proxmox, how to solve this please help

no need to add the "multifunction='on'" just edit the bus and slot for audio to be the same as graphics and function should be +1 so '0x1' for audio, unraid will ad the "multifunction='on'"

Great video! Unfortunately, I need getting this error when I start my VM with GPU pass-through - "internal error: Unknown PCI header type '127'" Any ideas what might be causing this? I'm trying to pass-through a GT 710 and my CPU is the Ryzen 2700x. I have tried passing the card through on many different VMs, all resulting in the same errors. I have confirmed that all virtualization settings are enabled on the mobo bios. Please let me know!

Should the same process for HDMI audio be followed for cards with USB and serial bus devices? Like my 1660 Super?

Can i use a gpu for 2 vms at the same time???

how did you have that turtle banner?

Hola como estas, disculpa necesito hacer que un solo PC Ryzen 3700x y una moderboard Asus Rog Strix x570 -e gamin con, una sola tarjeta de video MSI GTX 1650 poder generar dos virtuales y poder juagar en diferentes VM, pero utilizando la misma grafica, y separar uno por DHMI y el otro por DisplayPort, actualmente lo realizo con un programa que se llama ASTER pero me limitan los juegos jugar el mismo juego los dos usuarios

additional note for those who have BIGNAVI card, please disable rebar from BIOS

I was ready to give up..... I dumped the vbios, I used a TechPowerUp edited vbios, fixed the slots in XML, switched the legacy mode, tried every combination that I could try in the VM setup, manually passed through the video card, used the new 6.9.2 pass through, reinstalled the VM about 15 times for each of these, and BLACK SCREEN OF DEATH. Today I finally tried something new - based on an issue that had nothing to do with unraid, and more to do with me farting around in the actual bare metal bios. I was trying to mess with disabling the onboard video, and then all of a sudden after a few boots IT STARTED WORKING. Here's the dumb-as-hell solution that made it work: I plugged a flipping monitor into the physical GTX 1080. If I unplug the monitor, instantly stops working. Anyone know if I can emulate a plugged in monitor? I hate that I have to sacrifice a monitor to use the video card in a VM.

Hi, Does this still apply to unraid 6.12.8 with win11 VM still?

1 burning question: first AMD build here, no onboard gfx. I have 2 Vega cards installed, can I use both of them 1 each for 2 VM's or is 1 reserved by UnRAID since there is no processor IGPU? Is there a hardware or software fix that's savvy? ty.

Any idea when i go to create a VM it does not show my K2000 gpu as an option to use?

Your voice is reminiscent of actor david battley from willy wonka. I wonder if you both are from the same region of the uk.

I still got error 43 :(

@Spaceinvader One, is it possible to passthrough an NVIDIA GPU on a headless host and stream gaming using Moonlight? as I keep my unraid server in the attic

Is there anything different now that the Nvidia drivers allow passthrough? I’ve followed all of the steps and still receive the error 43.

I did what you said, but GPU still has error code 43. Is there anything else to pay attention to

Lots of good stuff here but UEFI is crucial to full compatibility for PCI passthrough. I can't agree with this advice unless you have legacy hardware. I built full UEFI specifically to be compliant with Intel's spec.

And why aren't my gpu's showing up?

First Blood

Came a video about vgpus on unraid

Is it possible to use 1 gfx (rtx 2080 ti) to use on 2 diffrent VM's Windows, linux and only 1 VM running at the time? Kind Regards // Grias

test...my comment is not here anymore. What happened to it? :(

and here i'm sitting with a 5700 XT and reset bugs :(

Minecraft search in your channel = 0 :/ Minecraft server for the little ones and friends would be great. please bless us with this tutorial. /äˈmen,āˈmen/