Jumper positions on HP Z Turbo Drive Dual Pro

[Zauderkuenstler]

Hello everybody out there using HP,

With a single NVMe, the HP Z Turbo Drive Dual Pro works very well in my HP Z440 workstation.

However, with a second NVMe in the HP Z Turbo Drive Dual Pro, the HP Z440 workstation detects none of the SSDs.

The HP Z440 works perfectly fine again after going back to a single SSD (after removing the second one) no matter in which slot I put the single SSD.

An obvious fix to use both SSDs would be to change the position of the jumpers.

They are shown on the top right of the photo attached to this post.

However, after having tried all possible combinations of the 2 jumpers, I'm a bit lost and would be grateful for additionals hints how I could pin down the problem.

[DGroves]

as i recall you need a system/bios that supports "bifurcation"  to use this card in dual/quad ssd configs and i think this was added to the bios in the later versions

you also need the card in a pci-e x8 slot or higher a x4 slot will not work if using dual ssd's and a x16 slot is required for the quad ver of this card

https://zworkstations.com/site/assets/files/112852/hp_z_turbo_drive_quad_pro_-_faq.pdf

leave the jumpers on the card  in the factory config

[SDH]

There aslo is a newer QuickSpecs for this... both attached with links edited in, below...

[_TASSADAR_]

I have a similar problem with slightly different hardware, although I suspect the solution will be the same regardless.

I'm trying to install an HP Z Turbo Drive Dual Pro with two Samsung 512 GB PM981 NVMe drives into an HP Z440 workstation, with the goal being to configure the SSDs in RAID 0 for performance as primary OS drive. No matter the position of the jumpers or the SSD / slot combination, the Z440 will only ever detect and read one SSD at a time. It does detect either SSD if I remove the other, but never both.

The PCIe expansion card was lifted from an HP Z6 G4 workstation.
The Z440's BIOS has been updated to version 02.57 Rev A.

I have tried moving the PCIe card from an x8 to an x16 slot (slot 4 to slot 5 on the Z440's board) to no avail.
The hardware diagnostics only ever detects one drive at a time, so does Windows boot media.
I have tried all the jumper combinations I can think of, I have tried removing both jumpers.

I will connect a secondary SATA disk, install Windows, and attempt to at least configure the disks using a software RAID utility such as MegaRAID tomorrow and report back.

My expectation is that it won't be possible to configure both SSDs as boot disks:

I am also unsure whether it is only possible to include NVMe disks in RAID arrays for the later Z workstations (via VROC):

[DGroves]

this card requires that the host computer support bifurcation in the bios and it must also be installed in a pci-e x8 or greater slot

both conditions listed above must be enabled for this model pci-e ssd carrier to work

however bifurcation is not supported on the z440, while the chipset is capable of this, HP does not enable it in the bios.

[_TASSADAR_]

Thank you.

My own findings confirm DGroves is correct - the crux of the problem is that the Z440 system is unable to address more than one storage device on a single PCI slot without bifurcation support from the BIOS.

Other systems with onboard M.2 slots may support RAID arrays using multiple NVMe SSDs, although still only one SSD will be available from the Dual Pro.