Yeah, they even display it on the main feature page!!!Looks like the new Gigabyte Z370N WiFi will support bifurcation woot woot
New ITX Z370 asrock boards don't look like they will tho
Yeah, they even display it on the main feature page!!!Looks like the new Gigabyte Z370N WiFi will support bifurcation woot woot
New ITX Z370 asrock boards don't look like they will tho
oh nuts, didn't catch that in the manual. gotta edit a post nowYeah, they even display it on the main feature page!!!
Should be fine doing the change while it's plugged in, AFAIK. It's basically just a dumb riser until the setting is enabled. But you can always play it safe and just put your GPU in like normal to change the setting.Hello,
I've just managed to get hold of an Ameri-Rack PCIe bifurcation riser which I am excited about! It should work with an ASRock’s AB350 Gaming-ITX and also a Supermicro ITX board that I have. I have a question about enabling bifurcation though.
Neither of my boards have onboard graphics, so I need a GPU in a PCIe slot to configure bifurcation. What order have others done the process of adding the bifurcation riser? Do you enable x8x8 in the BIOS first, then add the bifurcation riser, or the opposite: add the bifurcation riser and then configure the BIOS for x8x8?
Not knowing enough about the PCIe bus and pinout I'm concerned that doing this process in the wrong order could cause damage to the motherboard or PCIe cards.
Thank you
It should be negotiating to x8. Have you tried swapping their positions? And have you tried verifying the connection with the tool in GPU-Z? Some power saving features can drop your bandwidth when not using a 3D application.Thanks guys. I've had time to try this with the ASRock AB350 Gaming-ITX board this morning, I inserted the riser first (with only my GPU installed) and then changed the relevant setting (x8x8) in the BIOS.
After that I installed an HDMI capture card (BlackMagic Intensity Pro 4K) in the other slot in the riser. My PC seems just as stable as normal and detects both cards without issue.
The only thing I have noticed is that my GPU is running at x2 speeds. If go back to x16 in the BIOS (and take out the HDMI capture card) the card runs at x16, unsurprisingly, but when I enable x8x8 the card actually runs at x2. I assume that's just what my GPU drops down to if the full 16 lanes aren't available?
I tried this last night (been away for work which is why it took so long). I used GPU-Z and it says the GPU is capable of PCIe 3.0 x16, and when idle it's running at PCIe 1.1 x2. When I run the tool to stress the GPU the connection only changes to PCIe 3.0 x2, so sounds like something is wrong. I wonder if it's something to do with my motherboard - has anyone else tried with the ASRock’s AB350 Gaming-ITX?It should be negotiating to x8. Have you tried swapping their positions? And have you tried verifying the connection with the tool in GPU-Z? Some power saving features can drop your bandwidth when not using a 3D application.
Hi Guys,
Ready to bifurcate my last pci-e slot on my X99 board. Read that it should be supported according to Intel data sheets for the 6850k but there has been debate wether you need the manufacturer to provide hardware support nevermind software support. Thing is on my X99 the last 4X lanes go to waste when the pcie #5 8X slot share bandwidth with the M.2 slot if both occupied. However with a dual riser perhaps I could get my device on the other pcie slot 2nd half and not step on the M.2 lanes.
So I looked in Ami BcpEdit tool and found options under IntelRCSetup and IIO 0-4 to set the IOU2 ports to 4x4 bifurcated mode. Wonder if this might work or not. Need to order a dual riser card and cable to test this out.,
Thanks
Let us know which motherboard you're using and how it goes.
Yes, as rock z370 itx works with bifurcation
How much did you have to change to get SLI to work, or did SLI not work?Yes, as rock z370 itx works with bifurcation