apparently I wasn't logged in, so I re-posted my message as me:
Hi, Calvin. As long as you haven't done anything to the system since you created the RAID volume that would cause data to be written to the volume (like starting to install an OS - guessing you haven't), since it is a RAID 1, I think you'll be ok.
Use the Intel(R) Matrix Storage Manager option ROM to reset the disks in the RAID volume to non-RAID, and then see if you can still access the data on the original hard drive. Since it's RAID 1, the warning message you'll see that says: "all data will be lost - are you sure you want to do this" does not apply.
If you can then access the data, the option you are looking for that preserves your exising data and creates a RAID volume is in the Intel(R) Matrix Storage Console in Windows* - Actions menu -> Create RAID Volume from Existing Hard Drive. This takes the data on the original disk and migrates it across the new RAID volume. The other two options (Create RAID Volume in the OROM and Create RAID Volume in the UI) are for when you don't care what's on the disks and want to start from "scratch". It sounds like the instructions you read may not have been clear on this point.
I hope this helps!
Elizabeth, thank you so much. I've not done anything to the HDD and I saw that "Reset to non-RAID" option. I'd try tonite. I live in HK and I was so worried last nite, your message came like an oasis as I stuggle through the dessert without water. You're right, I figured that the Intel instruction on installing RAID when I have an OS disk already was for the software option not the ROM Utility option, but that was too late. Many thanks again and much appreciated.
I tried reseting to Non-RAID (both HDD - i.e. 1 original bootable, and 1 empty), and restart. Unfortunately, it still cannot find boot media. I tried settings using Storage config as RAID, IDE, AHCI. None seems to work. I disconnect the new emnpty drive to make sure that I have only the original boot drive there. It still did not work. I think the data should still be there as both the process of "Create RAID volume" and "Reset to Non-RAID' were done instantly without any physica \l erasing of data. Please help me to retreive it. Very desparate. Many thanks for helping.