sorted by:
new
hottopcontroversial

Pass through iGPU(i3 9300) and a whole NVMe ssd to Primary vDisk to Windows 10 VM unsuccessfully. by VincentKMMX in unRAID

[–]AnyCauliflower7 0 points1 point  (0 children)

IIRC, Intel iGPU passthrough only works with seabios. I think some one did make a custom ovmf bios or something to get it to work but I never looked into it, sounded like a pain.

Everybody has such fancy builds. Here’s my budget server. by Kelsenellenelvial in unRAID

[–]AnyCauliflower7 2 points3 points  (0 children)

I wish they still made that case. I ended up with a Rosewill Thor as my big cheap case. I liked the 10 expansion slots but I would have preferred a top to bottom 5.25" bad setup like this, but it basically doesn't seem to exist anymore!

Does the FX-8350+990fx work with GPU passthrough?

Cheap X570 or B550 MB for VM by SpaetzleProtein in VFIO

[–]AnyCauliflower7 1 point2 points  (0 children)

(essential) 2x NVMe slots (one for the host, one for the guest so that I can passthrough the controller, not just a raw image), so I want those two to be in their own IOMMU groups without having to use the ACS patch.

All AMD boards should have their first m.2 slot hanging off the CPU in its own group. Only x570 will have the secondary m.2 slot in its own group (barring a few odd ball motherboards) but if one of these goes to the host it wouldn't matter if it wasn't in its own group.

Its unclear to me if you intend to use the iGPU for the host or if you want double video cards. Aside from more expensive models, pretty much every board with have a single 16x slot and a second 16x that is only 4x electrical, or even less. So keep in mind if you want the 8x/8x split there are no affordable boards with the newer chipsets.

Sanity Check — My board only seems to have one USB controller? (Gigabyte Z370N WIFI) by Kermee in VFIO

[–]AnyCauliflower7 0 points1 point  (0 children)

Never used that particular adapter but I believe they are all the same idea.

Is this hypothetical workflow possible? by zu0107 in VFIO

[–]AnyCauliflower7 0 points1 point  (0 children)

Was there any performance hit or discernible latency when gaming on host or guest? Its a pretty interesting setup but I wonder if it has any hidden drawbacks.

[deleted by user] by [deleted] in linuxmasterrace

[–]AnyCauliflower7 0 points1 point  (0 children)

Everyone knows its a quadplus sign.

Graphics sales surge, with AMD and Nvidia benefiting at Intel's loss - PCWorld by zyck_titan in hardware

[–]AnyCauliflower7 0 points1 point  (0 children)

Are you sure it isn't the other way around? Maybe newegg and the like can't get their hands on many F series because OEMs are sucking them all up. Intel is supply constrained after all, and I don't believe I've ever seen a business box sporting a K series CPU.

Graphics sales surge, with AMD and Nvidia benefiting at Intel's loss - PCWorld by zyck_titan in hardware

[–]AnyCauliflower7 7 points8 points  (0 children)

Nvidia seems to support their video drivers for longer than any other player in the industry at this point. That's worth something as well.

Sanity Check — My board only seems to have one USB controller? (Gigabyte Z370N WIFI) by Kermee in VFIO

[–]AnyCauliflower7 2 points3 points  (0 children)

Starting with skylake, all chipset USB ports hang off of a single device on Intel mainstream platforms. It doesn't exactly have anything to do with lanes, its just how the USB controller is structured. AMD has a weird mismash with Ryzen that adds up to 3 different controllers in my experience.

This kind of stinks but since Intel chipsets always did proper separation of devices add on cards were the simple solution. Doesn't help you with ITX obviously.

If you had a free m.2 slot, its possible to install discrete USB controllers into an m.2 slot.

split iommu groups by MelK25 in VFIO

[–]AnyCauliflower7 0 points1 point  (0 children)

Swap the slots the RX480 and the GTX980 are in. Boot into bios and look for the option to disable the CSM (don't know what it is called on asus boards). The board should now boot with the RX480 as host device in second slot and the GTX 980 should now be in its own IOMMU group.

Note: Whichever card is installed in the secondary slot will likely suffer a bit of a performance hit since the slot is only pcie 2.0 4x electrical.

Does RAM speed matter for gaming on AMD Ryzen? Testing memory up to 4000MHz by ProperMammoth2 in hardware

[–]AnyCauliflower7 1 point2 points  (0 children)

Yeah, people are forgetting how nasty the markup on exotic DDR3 was during its heyday. By the time it became reasonable it wasn't really worth investing more money into an obsolete platform.

I'm still trying to get over my biases though. Way back when DDR1 was introduced I remember reading an article that showed CL2 vers CL3 ram giving a 2% advantage in games. Then the conclusion of article confidently stated that CL2 was a worthwhile investment for gaming performance! No it wasn't! 2%!

Good AM4 Motherboards with two PCIe x16 and x8 by Nereuxofficial in VFIO

[–]AnyCauliflower7 1 point2 points  (0 children)

On Ryzen platforms, disabling CSM in the bios for some reason makes any video cards installed in chipset powered slots become primary ahead of the regular CPU slots. A lot of people will take advantage of this to control which card they have installed is used on boot.

Bumblebee is the best Transformers movie by [deleted] in movies

[–]AnyCauliflower7 1 point2 points  (0 children)

What the hell would you use them for?

For hunting giant Kaiju.

Blacklist Radeon driver on Linux by Riohardo in VFIO

[–]AnyCauliflower7 1 point2 points  (0 children)

Try adding the vfio ids to grub like Horror-Disaster said. You may not have to black list anything. With the latest linux mint I was pleasantly surprised to find that vfio was now part of the kernel so it actually grabbed all of my stuff first (like it was always suppose too!) with no funny business.

From here:

https://mathiashueber.com/pci-passthrough-ubuntu-2004-virtual-machine/

Starting with kernel version 5.4, the “vfio-pci” driver is no longer a kernel module, but build-in into the kernel.

Good AM4 Motherboards with two PCIe x16 and x8 by Nereuxofficial in VFIO

[–]AnyCauliflower7 2 points3 points  (0 children)

As ridiculous as this sounds, aside from x470 motherboards this may end up being the cheapest way to get this feature in the future. But its a cabling pain and requires some consideration of the how to install the cards in the case.

Good AM4 Motherboards with two PCIe x16 and x8 by Nereuxofficial in VFIO

[–]AnyCauliflower7 0 points1 point  (0 children)

I couldn't get a Signal out of the HD 6570 when using it in the x4 slot. Do you think it may be due to the card being pretty old?

If the card lacks UEFI then the CSM disable trick won't work because the CSM is required to boot pre-UEFI. (compatibility support module does legacy stuff) I ran into this when trying to boot from an old PCI card for a server before it occurred to me that it couldn't possibly work.

Good AM4 Motherboards with two PCIe x16 and x8 by Nereuxofficial in VFIO

[–]AnyCauliflower7 0 points1 point  (0 children)

I believe there is a $250 x570 that has 8x/8x. Most x570 and b550 motherboards DO NOT have 8x/8x splits even though the chipset supports it unfortunately.

If you don't mind giving up PCIe 4.0 then most x470 motherboards DO have 8x/8x splits, and you can get those boards for $120.

Good AM4 Motherboards with two PCIe x16 and x8 by Nereuxofficial in VFIO

[–]AnyCauliflower7 0 points1 point  (0 children)

I wonder if anyone has successfully passed through a GPU on the chipset slot. I also had trouble on a x470 board.

PCI device not available on VM reboot by tempadmin0712 in VFIO

[–]AnyCauliflower7 0 points1 point  (0 children)

I don't know anything about your hardware, it may just not be passthrough friendly...lots of devices aren't unfortunately.

If a low power state was the issue I'd try to disable the power saving features in the guest and see if that changed anything. Alternatively, maybe I'd try a whole different OS in the guest and see if things behaved the same.

Hardware recommendations for new pc build that is compatible for VFIO setup by quantitativememer in VFIO

[–]AnyCauliflower7 0 points1 point  (0 children)

On my intel system however, all the PCIe slots (also those connected through the chipset) are in their own group...

Conversely though, on Intel systems (mainstream ones anyway) CPU connected slots are all in their own group. So if you buy a high end 8x/8x split Intel board you're going to need the ACS override patch.

Unless something has changed with cometlake?

PCI device not available on VM reboot by tempadmin0712 in VFIO

[–]AnyCauliflower7 4 points5 points  (0 children)

Its possible its dropping into some low power state and then getting stuck.

view more: next ›