Just seeing 1 drive in unassigned devices. I formatted them all exfat before puttingthem in. I have 4 in there.

Edited March 11, 20251 yr by sunwind

3 hours ago, sunwind said:

I have 4 in there.

Does your motherboard support PCIe slot bifurcation? Without it, your system will see only the first M.2 card and assign all PCIe lanes to it

 

From the description of the card you referenced: "Only support Bifurcation Motherboard"

 

Here is a good explanation of the need for bifurcation to support multiple M.2 cards in the same slot.

 

The best my motherboard allows is X8/X4/X4 so I could use a maximum of three M.2 SSDs in the device you referenced.

 

Edited March 11, 20251 yr by Hoopster

8 hours ago, Hoopster said:

Does your motherboard support PCIe slot bifurcation? Without it, your system will see only the first M.2 card and assign all PCIe lanes to it

 

From the description of the card you referenced: "Only support Bifurcation Motherboard"

 

Here is a good explanation of the need for bifurcation to support multiple M.2 cards in the same slot.

 

The best my motherboard allows is X8/X4/X4 so I could use a maximum of three M.2 SSDs in the device you referenced.

 

 

Thanks. IT's an 

MPG Z590 GAMING FORCE

 

In the top slot I have my IBM ServeRaid card, second slot is my Tesla P4, next one down in the small slot I have a wifi on/off switch, and I put it on the bottom one.

 

If I swapped it with the slot the Tesla P4 is in, would I be able to use it fully and still retain ability to use the tesla p4? 

Edited March 12, 20251 yr by sunwind

18 hours ago, sunwind said:

If I swapped it with the slot the Tesla P4 is in, would I be able to use it fully and still retain ability to use the tesla p4? 

From your motherboard manual, the PCIe slots on the board are the following:

 

It is usually the X16 slot that supports bifurcation on most motherboards.  Ideally, it would support X4/X4/X4/X4 to utilize all four M.2 SSDs in your expansion card each with 4 PCIe lanes.  Unfortunately, your motherboard does not appear to support bifurcation in any PCIe slot.   It does not appear that anything other than one M.2 SSD will ever be recognized in your expansion card.

 

Because of CPU and chipset limitations on the total number of supported PCIe lanes, often the X16 slot is reduced to X8 if a card is in the X8 (slot 3 in your board).  It is rare with Intel desktop motherboards that you can populate all available PCIe slots on a motherboard with their full PCIe lane width.  A lot of people like AMD Threadripper CPUs as they support a lot more PCIe lanes than Intel (unless you go with server-grade CPUs).

 

I found this in the specifications section of the MPG Z590 GAMING FORCE manual:

 

3x PCIe x16 slots
▪ Support x16/x0/x4, x8/x8/x4, x8/x4+x4/x4
▪ PCI_E1 & PCI_E3 slots (From CPU)
   ▫ Support PCIe 4.0 for 11th Gen Intel® CPU
   ▫ Support PCIe 3.0 for 10th Gen Intel® CPU
▪ PCI_E5 slot (From Z590 Chipset)
   ▫ Supports PCIe 3.0
∙ 2x PCIe 3.0 x1 slots (From Z590 Chipset)

 

Bifurcation is not mentioned but check your BIOS to see if you can designate PCIe lane splitting in an x16 slot.  The above likely just refers to the speeds at which the 3 PCIe x16 slots can be run and not the bifurcation of a single slot to these speeds.

 

 

Edited March 12, 20251 yr by Hoopster

Ah crap, well, thank you for investigating and figuring it out. I filled that card with 2x 500gb and 2x 1tb drives  planned to use for cache and dedicated plex pool.

 

So.. New motherboard? Since I'll also need a CPU, as well as DDR5 ram, unless there's a DDR4 board I could find on ebay that is sufficient(suggestions?), I can't really spend that much, and won't be able to recoup a whole lot from the existing stuff

 

CPU is Intel® Core™ i7-10700K CPU @ 3.80GHz

With 64gb ram.

 

A higher gen CPU would let me use the top M2 slot on any board, too, so consider that with any suggestions please.

 

As for the specs I need well, just this is what I'm missing really. Everything else works / is sufficient for my needs.

You will found which Asus board support bifurcation as below, pls note there have different condition, best only support three M2. Some combination also depends onboard M.2_2 use or not.

https://www.asus.com/support/faq/1037507/