I had a motherboard failure, purchased a new MB (same model X9SCM-F), reinstalled same PCI cards (in different PCI slots due to new CPU cooler), same cabling and parity/data disks in same slots. Upon rebooting, I have 14 of 18 disks missing but all 14 missing disks are listed in 'unassigned devices' and I'm not able to select those unassigned drives in the 'array devices' pull down where it shows 'no device'.

What steps should I follow to correctly assign the missing disks to 'array devices' that are currently shown in 'unassigned devices'?

I have a screenshot of all correctly assigned drives. (when array was working before I replaced the MB.)

Thank you.

Edited October 15, 2025Oct 15 by moose
more info

Please post the diagnostics

diagnostics attached.

diagnostics-20251015-0945.zip

I don't see any extra disks being detected; post a screenshot of where they show in UD.

screenshots attached.

Those are showing under the "Historical" section, disks it once detected as unassigned (not currently unassigned).

You need to check the system BIOS to see if the drives can been seen there.

Edited October 15, 2025Oct 15 by MowMdown

ok. Will need to wait until later today after work. Thank you.

Either something is not powered or you over-provisioned your PCIe lanes on the new motherboard and are using a deactivated PCIe slot which would result in your disks not appearing.

Or the BIOS needs adjustment to permit the hardware.

Edited October 15, 2025Oct 15 by MowMdown