You may, however, have to go into the BIOS and enable SATA, assuming you are using an onboard SATA controller. For example, my mobo, an Asus A8N-SLI Premium has both Nvidia SATA and Silicon Image SATA. I've enabled the Nvidia SATA controller but left the Silicon SATA controller disabled since I don't use it. Without enabling the SATA controller, my hard drive wouldn't show up.
I have pretty limited experience with this, however; it may vary from mobo to mobo.