Thanks for reading... Currently I have 2 hard drives hooked up to my motherboard which operate just fine. -Primary: I just installed Windows XP about 2 weeks ago (contains files) (cable select) -Slave: My old hard drive from my last computer. (contains files) (slave) I installed an IDE controller (Belkin Ultra ATA/133 PCI Card), and plugged in 2 hard drives to it. -One hard drive is not partitioned (brandnew) (empty) (slave) -The other hard drive is the hard drive i've used for the past 8 months. (contains files) (slave) When I try and bootup with the 2 current hard drives plugged into IDE1 (motherboard) and the IDE controller plugged into the PCI slot I have no problems. When I add the other 2 hard drives to the IDE Controller I am prompted to hit F3 and enter Raid Setup. If I don't hit F3 I never make it to Windows Desktop If I hit F3 this is what I get: F1: Delete Raid Set F2: Create Raid Set (beep) F3: Create Spare Drive F4: Resolve Conflicts (beep) When I hit F1 it prompts me to choose a Raid set to delete and gives me 1 option. I'm not entirely sure what a Raid set is so I have not deleted. When I hit F2 and F4 my motherboard speaker just beeps every time the key is pressed and I never go to a next screen. When I hit F3 it tells me that there is no Mirror Set. The end result i'm looking for: Primary Hard Drive, 3 slaves, and no loss of data. Thanks to all that read and respond. P.S. Techspot is my hero.