Supermicro X11(S|D)Px bifurcation

[RolloZ170]

Don't know that i am missing now.

its your ES cpu or a bug in the BIOS.

 

[Rand__]

Do you have another (brand) m2 you can try?
@gb00s had an issue with 2 identical nvme drives on SM boards (u2 connector though iirc, didnt find the thread on a quick search), mayne these two are just identical enough that this happens here too?

 

[gb00s]

My issue was with NVMe's connected to the SFF8643 NVMe ports of the SM motherboards. I had no issues with these NVMe's connected to PCIe via PCIe-card.

EDIT: Typo

 

[Javik50k]

I had no issues with these NVMe's conencted to PCIe via PCIe-card.

So finally i ordered m.2-PCIe card too. Hope it'll help (I have 2 free slots anyway).

 

[Javik50k]

With M.2 to PCIe adapter it finally worked.

 

[tjsyl]

Tried to use the on board m.2 and could never get anything to see them, so...

Amazon $31.54 with taxes GLOTRENDS PA21 dual M.2 with M-Key. All 3 16x slots are on CPU2. CPU1 has all your 8x slots, your 2- M.2 and every other damn component on it(makes sense if you were to run a single CPU on a 2xCPU board). If you look at the Block Diagram Slot 6 and 7 (far right closest to the DIMM slots) are already bifurcated into 2- 8x slots. I set CPU1 IOU1 to x4x4x4x4 and installed the card in slot 6 (would have used 7 but the fan plug doesn't let a card seat all the way when there is a fan plugged in). I am able to see both of the Intel 2TB and assign them to a pool in Unraid.

Summary (I think):

CPU1- IOU0= Slot 1 plus everything else, also via DMI3( 2x 10gb lan, 2x 1GB lan, BMC, USB, SATA, TPM).
CPU1- IOU1= Slot 6, slot 7
CPU1- IOU2= slot 3 and the 2- 4x m.2 slots.

CPU2- IOU0 slot 2
CPU2- IOU1 slot 5
CPU2- IOU2 slot 4

 

[RolloZ170]

Tried to use the on board m.2 and could never get anything to see them, so...

PCIe only(no SATA)
PCI/PCIe config->NVMe Firmware source = "AMI Native"

 

[sam55todd]

IMV - HWInfo64 allows tracing device topology via BUS tree quite well.