[Request] Quanta Stratos S210-X22RQ PCIe Bifurcation (AMI)

[Deratbox]

I own a Quanta Stratos S210-X22RQ on AMI BIOS version 4A21. I can see with IFRExtractor that the BIOS has hidden settings for PCIe bifurcation. I would very much like to be able to configure it.

Thank you to anyone that can help
4A21.BIN

[MeatWar]

@Deratbox

PCIe bifurcation (Intel® C602/X79)

[Guide] - How to Bifurcate a PCI-E slot

Recently I have been experimenting with splitting my last unused 8X PCI-E Slot in half. Because I now have a 40 lane cpu and my two GPU’s both take 16X lanes placing a NVME drive on the last slot leaves me with 4X lanes that are wasted. In my case I also have an onboard M.2 connector with an NVME drive but that is connected to the last PCI-E slot and the M.2 Onboard drive is forced to operate through the PCH at lesser performance which is not desirable. Of course I could use the two other PCI-E …

[Guide] PCIe Bifurcation - mapping IIO/IOU to PCIe slot

I’m sharing some extra research info that I couldn’t find in the existing bifurcation guides. I collected pieces of various info from all over the place until it started coming all together and making some sense to me. Hopefully this helps someone. Q: What is IIO? A: Integrated Input/Output controllers manage traffic between PCI Express and CPU domains. Q: Why do I see IIO0, IIO1, IIO3 and IIO4 in AMIBCP? Do I need to configure bifurcation on all four IIO? A: BIOS has four IIO entries because…

[Guide] Adding Bifurcation Support to ASUS X79 UEFI BIOS

Adding Bifurcation Support For ASUS X79 in UEFI BIOS Menu Primarily for use with riser cards that split PCIe slots into multiples without a PLX chip To avoid the cost of a PLX Riser card/PLX Multi M.2 (RAID) For this guide I used a P9X79 Motherboard, UEFI BIOS 4701 , and a Asus Hyper M.2 x16 Card some variables may be different on other boards. Warnings: Here be dragons. Bifurcation is tested with an a Hyper M.2 x16 Card with 2 Samsung 500GB 970 EVO’s installed on a x8 slot bifurcated to x4x…

Thats all you need, so go ahead and good luck.

[Deratbox]

Thank you! I’ll take a look at these.
Previously I could supposedly enable IOU bifurcation with the GRUB UEFI variables tool, but it didn’t seem to have any effect and I’m not sure what ports are IOUxx particularly since there’s a proprietary riser involved.

[Deratbox]

So I just reviewed these and it seems to be the same process I did before which didn’t do anything. I tried all the IOUs and all the ports on the riser and none of them were bifurcated. Moreover, I’ve no clue where one would obtain a block diagram for their motherboard (and riser) unless they work for the manufacturer…