What CPU ?
What other items have you installed in the MB ?
1) Just install 1 Drive when Loading Your OS
Windows will attach itself to all the HD it can find during the install - even the non-boot drives
(excerpt page 51 manual)
If you plan on using an M.2 or U.2as a boot device, click on or navigate to the “Advanced” menu, select“Onboard Device Configuration” and enable the desired port.Once this is done, press F10 to save and exit, plug in your operating system installation medium (likely a thumb drive) and Windows 10 should be able to boot to M.2 orU.2 without issue.
---> Drive shows up in the BIOS, but is not seen in Windows, then it may be that the drive needs to be initialized, partitioned, and formatted in Windows. See Page 84 for instructions.
Z390 Dark manual see page 27 of manual for M.2 breakdown "population rules"
page 51 52 & 53
(copy of Manual below "--->" Added to Help You)
HDD/SSD/M.2/U.2 SetupNext, click “Boot” from the menu list at the top. “Boot Option #1” should show the device that you intend to install your operating system.
If you are using a standard SSD/HDD connected to a SATA port, but the device is not present in the Boot Option #1 menu, scroll downto “UEFI Hard Disk Drive BBS Priorities” at the bottom. In this menu, the top item will be “1st Boot” and will have a pulldown menu on the right. Click on the pulldown menu and select the intended drive; this will make the drive appear on the previous menu. If the drive continues to be missing, please check the troubleshooting section on Page 144.
---> If you plan on using an M.2 or U.2as a boot device, click on or navigate to the “Advanced” menu, select“Onboard Device Configuration” and enable the desired port.Once this is done, press F10 to save and exit, plug in your operating system installation medium (likely a thumb drive) and Windows 10 should be able to boot to M.2 orU.2 without issue.*Note*Some device manufacturersrequire specific drivers for HDDs or SSDs (such as M.2) before Windows can detect the drive for installation. Please make sure to consult the manufacturer’s instructions for your HDD or SSD before attempting to install Windows to determine if additional drivers are needed
BIOS Setup and Windows Installation for M.2 and PCIe NVMe SSDs
1. Remember, NVMe is a new standard and older operating systems do not have native support. Many NVMe drives require certain steps to make the drive bootable, even with current operating systems. PLEASE FULLY READ THE INSTRUCTIONS THAT COME WITH YOUR M.2 or PCIe NVMe SSD BEFORE INSTALLATION.
2. After reviewing your SSD’s instructions and its respective Physical installation instructions above, power on the PC and enter the BIOS/UEFI by pressing the F2key repeatedly.
---> 3. Once in BIOS/UEFI, navigate to the “BOOT” section. Then go down to the “CSM Configuration” heading and press enter, or click on it with your mouse.
a. For Windows 10: Set “Launch Storage OpROM Policy” to “UEFI”. Then set “Launch CSM” to “Disable”
4. Press F10 to save and exit the BIOS/UEFI.
5. Press Del on reboot to reenter BIOS/UEFI.
a. If you are using a SSD-attached via PCIe, proceed to Step 6.
---> b. If you are using the motherboard’s M.2 slot, proceed to Step 8.
6. If you are using an SSD connected via PCIe (e.g. an Intel®750) or through an adapter that connects an M.2 SSD to PCIe, go to “Advanced –PCIe Configuration” and verify that the device shows on the slot you have it installed.a.Verify the lane count and PCIe Generation. It should state “x4 Gen3”.
7. Next check the Dashboard on the upper right. The populated slot, lanes used, and PCIe Generation should all match the information found in the previous step.a.Proceed to Step 9when done.
---> 8. If you are using an SSD connected to the motherboard’s M.2 slot, re-enter the BIOS/UEFI and go to“Advanced –Onboard Device Configuration,” and set “M.2 Socket3” to “Enable.”
---> 9. Go to the “Boot” Section, set “Boot Mode Select” to UEFI, and set first boot device to “Hard Disk:Windows Boot Manager”.
10. Press F10 to save and exit. Insert/Connect your Operating System install media and reboot.
---> 11. Begin the Windows installation. During the drive selection step, you may need to load additional drivers that are provided by the SSD’s manufacturer, which would be covered in the SSD manual. If these steps are not followed you will likely be unable to install the Operating System to the SSD and make it bootable.