Is there a chance it's not formatted? Are you looking at it through Disk Management? Right click on My Computer, click manage and click on Disk Management. See if the disk is listed in there. If it is there but not formatted, right click on it and click format, and follow the steps in there.
I just looked in Device Manager, finding different drivers for each SATA drive. I deleted the second, re-booted and a new driver was installed, then found the 2nd drive, asked for another re-boot and....SUCCESS. I now have a storage drive. I had to re-asign drive letters so I have a C: and a D: drive, and an E: for the CD