I recently built a new setup using two 350GB Western Digital SATA hard drives. They are raided and until today I've had no trouble with the computer at all.
When turning my computer on it loads to the Windows logo (the pulsing coloured "squares") and after 10 seconds or so it reboots.
When booting up it detects my raided drive however when I insert the Windows 7 cd to enter the repair menu it doesn't see the drive. What I mean is on the screen where you choose the OS to repair, it does not appear. It DOES appear, however, after inserting a USB device with my raid drivers on it and then locating them first. The trouble is, the first time I did this it detected my 700GB raid drive (or approx 630GB space). The second time, however, it only detected my old 200GB drive which I store music on.
After switching to different SATA ports as suggested by another post I found on the net, I then encountered a 0xc000000F error which reads "0xc0000000f. Info: The boot selection failed because a required device is inaccessible". I tried doing a MBR repair but I don't think it worked.
Any help would be greatly appreciated as I have a lot of important data on there!
Quite possibly! I don't know enough about your RAID array to comment. So maybe leave the battery for now.
Why don't you create a ubuntu live CD and try and access your data that way? If it's mirror raid you're using then you should be able to access either drives to back up your data. Unfortunately if it's another type of raid it might be somewhat difficult to access.
I still think you are having issues because one or more of your drives is on the way out. So definitely a good plan to run some disk diagnostics.
First disconnect any hard drives that are not part of the raid. That way you don't get boot-to-wrong-drive and other similar issues. I assume you used an on-board cheapo raid; either Intel or Marvell. You will then need to go into those utilities on boot up and ensure the RAID BIOS see your raid and/or repairs it if necessary. Also check that the PC BIOS is still actually set to RAID as even though you didn't manually change anything, it doesn't mean the settings are still the same.