I have been using my T20 for about a year now with just the 4 SATA drives (plugged into the motherboard) in a RAID 5 Array. I was using the Add-in SATA controller to run a DVD-ROM drive. Recently, I bought two solid state 2.5 inch drives and replaced the DVD-ROM drive. My intention was to install the operating system (Windows Server 2012 R2 Standard) onto the 2.5 drives in a RAID 1 Array from the controller. The Windows install recognizes the drives correctly, whether I try UEFI boot (Secure and Non-Secure) or Legacy BIOS, On-board SATA on or off, with drives (3.5 in) on or off. I uploaded the latest BIOS update A05. After installation the system fails to boot with either a missing file message or a message concerning a Signature Verification an possible tampering.
My questions are:
Is booting from the SATA card possible? If so what settings do I need to apply to make this happen?
If is not possible to boot from the SATA card? Is there a Dell recommended card to support 4 SATA drives, in RAID 1/10/5?
Thanks for any help