Good Morning rotor123, i found this on the dell support forum and it explains fully what the techs at dell told me when we were trying to enable the esata port:
its well documented in the forums and even with dell technical support that the earlier xps420's from early 08 that didnt have raid installed from the factory do not have esata capability. it was a flaw on dells part because they were supposed to install the vista image using raid (thus enabling ahci) and then not use raid once setting everything up. but when they installed the vista image with raid off, it didnt allow the esata port to work at all. the only way to get it to work is if i turn raid on, and then i can actually see the drive connected to my esata port in the bios, but you cannot then boot into windows as you get a bsod.
i now have decided to go with the following two options;
option 1: find the backplate that came with the LG and plug it into my motherboard (fat chance of that happening)
option 2: buying another backplate esata to sata to plug into my motherboard thus bypassing all of the tomfoolery associated with editing registry
i'll give you three guesses which option i'm taking but you'll only need one LOL
Addendum: what do you think of this?
*NOTE* :Please verify, but the following should work, always back up your registry before editing.
After making this change, restart and all your drives will be redetected by Windows. Once redetected restart again and plug in the eSATA drive.
1. navigate to: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Iastor
2. Click in the right pane with the right mouse on Start
3. Change Value from 4 (?) to 0 and click OK
4. Close register editor
5. Restart the computer
6. Press F2 to get into System Setup
7. Set the Harddrive configuration to RAID ON
8. Save and Exit
Message Edited by Astrophel on 09-17-2008 11:35 AM
Edited by Sani-T-Capt1, 02 February 2012 - 03:46 PM.