Thanks a lot bud for putting this up. I however dont see that ICH9 vendor ID under Serial ATA in "System Profilier". I am attaching a screenshot of what I see. Also when I click on "ATA" it says no devices installed. Same with Hardware RAID. Thanks.
I checked the Vendor ID in windows and it turns out to be the same as you mentioned but I'm still gonna attach a screenshot just to be safe
you are using sata interfaces so your devices wont show up under ata unless you use ide and not raid unless you are using apple raid.
the kext he is talking about is located in \system\library\extentions\ its called AppleAHCIPort.kext , copy it to you desktop like he said. then right click and choose show package contents.and edit the plist file in there like he said. get the raid device id from windows and add it into your plist. also check around the forum, there are dell install packs and one of them might have an AppleAHCIPort.kext to sort out your issue