I’m a newbie. Trting to add a caviar SATA to my XP Dim 5150. The tower will not recognize the drive. I bought a Dynex 2.0 cable (my drive didn’t come with one or with a pinout. The file said I didn’t have to use the pins to determine the primary/slave drive. My PC will not recognize the drive even when i did a DOS rescan. Can someone tell me what I’m doing wrong?