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did your array stop? won't show if the array stops. but, also, diagnostics....

add vnc viewer in the graphics settings with the gpu(with audio) and try to start the vm. then launch vnc and see what the vm is doing at boot. it's obviously not making it to windows if rdp/teamviewer doesn't launch.

dumb question but did you try creating the vm with the template first without the video card, and then adding it later and letting windows detect it that way?

post logs and xml. are you running the vm from the array or cache disk/ssd? there are many variables. could be hardware conflict, could be corrupt windows install... more info is needed.

unRaid Time Machine. They'd sell more licenses. It's a win/win.

+1 I do all my replication manually.... it's less fun than it sounds.

post logs/diagnostics/info

so... I bought my servers for 50 each........... ....................................once you get a rack, you never go back.....

I run four servers that are 5-6 years old, all dual processors. They are awesome. 3 run 8(16) cores, and one is 12(24) cores. But, I got them cheap. And upgrades are cheap. I went from dual e5520 to dual x5670 procs for about 120, and increased cpu power by 80%. The 12(24) core is my main setup, with the other 3 being used for batch media processing/transcoding via vm's and backup purposes. It's nice to be able to run a couple vm's for power hungry users, transcode (not stream) a couple plex vids, run a network switch, all while doing a parity check with no issues. It eats more power, but it evens out if you can get it them for cheap.... or jut dont care about power usage and just want to be able to satisfy your needs. the 12(24) core processor idles at about 100 watts. my next purchase in a year or so will probably be a quad core server, and condense all my needs into 1 box.... and create 60-70 core vm's for blunt power. maybe it is crazy.... but fun!

you sure it's not a vm networking setting issue, like turning on local network discovery or something? (I know nothing about windows 2012).

I DO want to pass through the audio. It is the rest of the devices in the group that I wonder if I need to pass through. By the way, I enabled ACS override and rebooted (stopped data transfer first) and it made no change to the IOMMU groups. All are as they were before enabling ACS override. Since I cannot seem to get the audio separated from the other items in the group, is it just a matter of editing the XML to pass the other devices as well adding <source> tags for the other devices? Will passing through the ISA bridge, memory controller and SMBus to a VM affect the core unRAID server negatively? i missread, been a long day... happy new year and all that jazz.... question: if you remove the audio device, does it boot properly? moving on.... try this in the syslinux.cfg instead of normal acs override: append pcie_acs_override=id:DEVICE:ID initrd=/bzroot this will try to pry the single device out of the group. you will add your device id to the part that says DEVICE:ID. to get the device id, look under Tools>System Devices, then search for 0000:00:1f.3 under pci devices. the number in brackets at the end of the description is the device id.

your xml shows it is setup to pass the audio to the vm. so if you don't want it, take it out either by deselecting the audio device in the vm manager or deleting the previous code from the xml. i'd do that first before acs override. plus, that doesn't require rebooting.

is the ip in the same range as the rest of your devices? is window 2012 using vibr0 or br0 for networking? if vibr0 change to br0.

As I understand it, everything in a group has to be passed to the vm. right now you're only passing through 0000:00:1f.3. so the other 3 devices in the group have to go as well. <hostdev mode='subsystem' type='pci' managed='yes'> <driver name='vfio'/> <source> <address domain='0x0000' bus='0x00' slot='0x1f' function='0x3'/> </source> <address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/> </hostdev> that is just 0000:00:1f.3 if you don't want to send everything to it, you can try to turn on acs override and see if it will split them up.

+1 on the SSD mounted vm's. Running a vm off the array would be wore than running it off a straight hard disk. also, downgrade to unRaid 6.2.4. It's the current stable version. I've also found success ignoring everyone's advice about cpu pinning with its own hyper thread. try putting 4,5,6,7 as your gaming cpu (it's not like it's going to break anything) and put unRaid/plex on 0,1, and the other vm on 2,3. also post logs. You're not expecting too much, unRaid sometimes requires patience/trial/error/screaming/pleading/resolution.

build a second cheap computer put unRaid on it with a decent host bus adapter with a few hundred MB/s throughput. I just pre cleared 6 drives at once last night at the same time, and was only limited by the 600MB/s throughput on my HBA.

failing usb or other failing hardware? what do your logs show?

try append pcie_acs_override=downstream=id:1102:0012 initrd=/bzroot I don't know if there is a difference between = and , in the code, but when tried something similar and used = it separated ineligible audio off of a graphics card and worked for me.

did you see what other devices are in iommu group 6?

Hp entitlement upgrade that i'm not willing to pay for on a 6 year old server..... and i'm not sure i trust second hand sources.

ASRock 3.1 a+c first time the vm is run, it operates fine. if the vm is turned off, then on reboot it will hang at Tianocore screen. Looking in the server logs I noticed: Dec 28 17:07:53 Brahms1 kernel: pci 0000:17:00.0: xHCI BIOS handoff failed (BIOS bug ?) 00010401 0000:17:00.0 i the usb card. anyone know about this?

if you're worried, make a copy of your network config file before changing over. That way, if you mess up the unRaid network config and can't get back in, all you have to do is pull out the usb, add the original file back, and gain basic access again to try to setup again.

I've had an NMI on a core on my host and it was hardware related (raid controller dying) but not in a vm. This doesn't directly help, but sharing is caring.

have you tried: https://doc.pfsense.org/index.php/VirtIO_Driver_Support

downgrade to 6.2.4 And that solves what exactly? 6.3 uses 6.2 ovmf as far as I know. it solves making you vm working again and eliminates all the other things in the release client that you don't know about that could be causing the issue.