Originally Posted by Supershanks 
Sounds like it may have just lost boot order for some reason. Do you use a usb drive??
With a lot of drives connected i find it better to just have the drives with an os in the boot order, changing the other drives to disabled (this just means disabled from boooting)
Yes that seems to be it. I have now reset SATA Mode to RAID with the non raid OS disk at top of boot order at it came up OK.
I do not us a USB drive.
Reconfigured the RAID array in the ROM as all RAID 0 to run HD Tune - performance fall off does not start until 85%. - average is 92.5 MB/Sec with 101 Max and 76 Min. I could try with all 4 disks with RAID0 / Raid 5 Matrix (RAID 10) - which will no doubt give faster RAID0 performance, but I figure running two separate RAID 0 arrays, one with OS/Apps (eg FSX) on and the FSX Photo Scenery (Generation X) on the other will actually yeald faster performance two each running at 92 MB/Sec each providing their own data, rather than one running at maybe 110 or ever 120 but providing all data?
Good luck with the move
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