Check if you have set these bios settings Advanced >> Drive >> Configure SATA as IDE & ATA/IDE Mode to Enhanced.
If not fixed,try to do a cmos clear and flash the bios to the latest one using the recovery mode.
All the best,
My computer recognizes the SATA HD now but it still will not load Win XP. How do I slipstream wind xp with SP2. I am a complete novice so I don't understand why intel would sell a motherboard that is so difficult to use. I have the (D945PLNML Motherboard) Why don't they provide the proper drivers for the most popular operating systems? So I need an easy way to slipstream XP and SP2 I have bothe the XP and SP2 cds.