OK, So after some looking around I came across the following info that I found helpful:
"Working with an ASUS P8P67 Pro Rev 3 motherboard, BIOS version 1502.
I had problems getting Windows 7 Ultimate 64 bit to install to a 3 TB disk.
The first couple of times I tried, I ended up with:
- A 100 MB "System Reserved" partition
- A 2047 GB "Primary" partition
- A 749 GB unallocated space
The "diskpart" utility indicated that the partition was MBR format. The 749
GB unallocated space was not usable - all "Actions" in Windows Disk Manager were
Here's what worked for the system described above:
With the Windows 7 install disk in the DVD drive, I restarted the computer
and entered the BIOS utility. At the bottom of the screen, there was a "Boot
Priority" section. It showed 3 icons:
- A UEFI icon on the DVD
- A non-UEFI icon on the DVD
- The hard disk drive
WHEN I BOOTED WITHOUT THE WINDOWS 7 INSTALLATION DISK IN THE DVD DRIVE, THERE
WAS NO UEFI ICON IN THE BOOT PRIORITY LIST.
I re-arranged the icons so that the UEFI icon was first, followed by the
non-UEFI icon and then the hard disk icon. Selected "Save changes and exit." and
rebooted from DVD.
Windows setup started. Did shift-F10 at the "Enter languages ..." screen.
- select disk 0
- convert gpt
- list disk
Got "Successfully converted to GPT" message after step 3. Step 4 showed a
single partition with an asterisk in the "GPT" column. Continued with the
installation. The "Where do you want to install Windows?" screen showed Disk 0
with a single 2794.5 GB unallocated space. I choose this unallocated space and
clicked "Next". The installation started copying windows files.
After installation, diskpart "list partition" showed 3 partitions:
- A 100 MB "System" partition
- A 128 MB "Reserved" partition
- A 2794 GB "Primary" partition
diskpart "list disk" showed 1 disk with an active GPT partition:
Microsoft DiskPart version 6.1.7600
Copyright (C) 1999-2008 Microsoft
On computer: P8P67R3
DISKPART> list disk
Disk ### Status Size Free Dyn Gpt
------------- ------- ------- --- ---
* Disk 0 Online 2794
GB 0 B *
Windows' "Disk Management" graphical interface showed 2 partitions:
- 100 MB "Healthy (EFI System Partition)"
- 2794.3 GB "Healthy (Boot, Page File, ... Primary Partition)"
I have since installed all the drivers needed and run Windows Update to
install about 100 updates. Needless to say, there were many reboots during that
process. So far, the only problem I've discovered is that an attempt to use
Windows Backup to save a system image fails with the message, "Volumes larger
than 2088958 megabytes cannot be protected.", error code 0x807800B4. I've opened
a trouble ticket and am working with Windows support to resolve this issue."
I did unfortunately end up re-installing my OS, though it seems you can run a single drive on the raid controller (though it is not technically a raid). And the install went pretty smoothly. Hope this may help others who wish to run in RAID mode.