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z170x gaming 5 NVMe raid0

Hi,
I own a Gigabyte GA-Z170X Gaming 5
Previously i had this disk configuration with no problems:
1 Samsung NVMe SSD 512GB connected to the lower m.2 port (under the GPU)
3 SATA SSDs connected via SATA cables on RAID0
and also 1 DVD-ROM and WD 1TB HDD connected via SATA cables

all of above worked together perfectly.

Now I'm trying to achieve the following disk configuration with no success:
(adding 1 NVMe drive and disconnecting the CD-ROM and WD 1TB HDD)
2 x Samsung NVMe 512GB SSD on RAID0
3 x Samsung SATA 250GB SSD on RAID0

The problem I'm having with this configuration (after a lot of debugging) is that once the second NVMe drive is connected to the motherboard (to the upper m.2 port between the CPU and the GPU) the only SATA ports that available are SATA4 and SATA5.
And the BIOS does not recognize anything connected to other SATA ports.

Can someone address the problem?
Thanks!
Reply to orevron
10 answers Last reply Best Answer
More about z170x gaming nvme raid0
  1. updated the issue after some debugging...
    Reply to orevron
  2. Manual page 18.
    Short answer is, PCIE SSDs use same lanes as SATA ports, so when you use two M.2 drives, some SATA ports are disabled (which ones depend on configuration, again see page 18). There's nothing you can do about it, that's how the board was designed. And note that if you actually use Raid at M.2 drives, you will have only SATA 4 port operational (4 and 5 are on when upper M.2 is installed but without Raid).
    Reply to DRagor
  3. DRagor said:
    Manual page 18.
    Short answer is, PCIE SSDs use same lanes as SATA ports, so when you use two M.2 drives, some SATA ports are disabled (which ones depend on configuration, again see page 18). There's nothing you can do about it, that's how the board was designed. And note that if you actually use Raid at M.2 drives, you will have only SATA 4 port operational (4 and 5 are on when upper M.2 is installed but without Raid).


    Thanks for answering.. I did saw the manual and as for now my 2 m.2 nvme and 3 sata ssds are connected.
    Where the 3 sata ssds connected to the ports sata1 sata4 sata5
    I did some logic 'and operator between the two nvme configuration tables
    But still only sata4 and sata5 are available for the system.
    Is it the normal situation? Or there's something wrong I'm missing here?
    Reply to orevron
  4. It is this board design. If you knew you will use many drives, you should have looked for either one that does not share M.2 lanes with SATA ports or board with more SATA ports (such boards have additional chipset that gives 2-4 more SATA ports).
    Reply to DRagor
  5. DRagor said:
    It is this board design. If you knew you will use many drives, you should have looked for either one that does not share M.2 lanes with SATA ports or board with more SATA ports (such boards have additional chipset that gives 2-4 more SATA ports).


    i understand,
    Still just to get it straight forward.. the only configuration i can acheive on this board is 2 NVMe and 2 SATA drives?
    thanks again.
    Reply to orevron
  6. Best answer
    Yes. And if you put those NVMe into Raid, you will be able to use only 1 SATA drive.
    Reply to DRagor
  7. DRagor said:
    Yes. And if you put those NVMe into Raid, you will be able to use only 1 SATA drive.


    Thank you so much for helping me! Really.
    Can you please point me to where you get to understand it from the user manual? Because I really read this manual like 4 times.. and still can see how to figure it out...

    Thanks!
    Reply to orevron
  8. There are 4 tables, one for each M.2 at non-raid and raid setup. Skip those two that describe lower M.2 slot (H) as that slot only interferes with External SATA configs. So first important table is that labeled AHCI mode M2D_32G M.2 connector. There are 6 rows, since you have NVMe drives, row no 3 is of interest for you. It goes like "xxxxvv". So first 4 ports are not available (x), last two are (v).
    The same goes for Raid mode, 3rd row of the relevant table shows "xxxxvx" meaning only 5th port is available.
    Reply to DRagor
  9. DRagor said:
    There are 4 tables, one for each M.2 at non-raid and raid setup. Skip those two that describe lower M.2 slot (H) as that slot only interferes with External SATA configs. So first important table is that labeled AHCI mode M2D_32G M.2 connector. There are 6 rows, since you have NVMe drives, row no 3 is of interest for you. It goes like "xxxxvv". So first 4 ports are not available (x), last two are (v).
    The same goes for Raid mode, 3rd row of the relevant table shows "xxxxvx" meaning only 5th port is available.


    And how did you know to look at the PCIe x4 row and not the PCIe x2?
    Also I've seen around the web some kind of adapter where you plug the m.2 drive onto it and connect the adapter to the PCIe port under the GPU..

    Is this kind of adapter can help me get the wanted configuration?

    Thanks
    Reply to orevron
  10. Because NVMe drives use normally x4 slot (you didn't mentioned it but I suppose you have Samsung EVO). They can work at x2 slot, albeit this will limit performance - x2 slot offers real speed around 1600Mb/s (so, much less then EVO offers).
    As for adapter, this could work - as far as giving you back SATA ports, but I doubt you could create Raid that way.
    Reply to DRagor
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