Can my motherboard and PCIe Gen3 X16 slot support bifurcation?

[tgerdes3609]

HP Pavilion Desktop - 510-p009

Serial number:

[Personal Information Removed]

Product number:

V8P56AAR

I am shopping to add a new card to my PCIe Gen3 X16 slot (on my motherboard) in my desktop computer.

I want to add a PCIe card that contains four slots for NVME SSD cards.  The listing states that "

• Motherboards and BIOS MUST support bifurcation otherwise only first drive can be recognized."

I am at Bios level F.42 (the latest level) on my motherboard .

How can I find information about whether my motherboard and BIOS will support bifurcation?

Is it possible to get a detailed list of technical details that state what my BIOS and PCIe Gen3 X16 slot (on my motherboard) can work with?

MY motherboard is a Hamar 

• Form factor: uATX: 20.5x22.0 cm (8.1x8.7 in)
• Chipset: H170
• Memory sockets: 2 x DDR4
• Processor socket: LGA 1151
• Expansion Slots:
  • One PCI-E (GEN 3) x16 socket
  • One M.2 socket 1, key A

[erico]

A card with two M.2 SSD will probably work.  One with four, maybe not. Four lanes per M.2 NVMe  SSD. so  it is still a maybe.

Unfortunately, your PC is not a high end prebuilt gaming rig, a high end  workstation or a DIY rig with a monster motherboard with two or more PCIe x16 slots with PCIe NVME support.

re;"

• Motherboards and BIOS MUST support bifurcation otherwise only first drive can be recognized."
  
  Unfortunately HP does not provide that information.

Take a read of this discussion at ArsTechnica on the subject. There are more discussions at other highly technical PC forums.

https://arstechnica.com/civis/threads/twin-nvme-drives-in-single-pcie-slot-can-this-work.1459031/

https://www.techpowerup.com/forums/threads/asus-hyper-m-2-x16-v2-cannot-see-multiple-drives-even-on-...

[tgerdes3609]

Erico, Thanks for your reply... 

I know that my bios does not seem to show any support for bifurcation.  Although the specifications for the CPU and chipset seem to say that it can support the following configurations for the slot ( 1 x16, or 2 X8, or 1 x8 1x4 and another 1x4).  Does HP or Hamar have a more detailed user manual for the HP 81B4 motherboard?  Is there a card that can handle the two CPU's on one slot with this motherboard?