Here is some info I picked up from seagate, there is a link at the end to there website troubleshooter.
Hope this is helpful.
"Copied from Seagate's Website."
Configuring the BIOS
Close your computer case and restart your computer. Your computer may automatically detect your new drive. If your computer does not automatically detect your new drive, follow the steps below.
Restart your computer. While the computer restarts, run the system setup program (sometimes called BIOS or CMOS setup). This is usually done by pressing a special key, such as DELETE, ESC, or F1 during the startup process.
Within the system setup program, instruct the system to auto detect your new drive.
Save the settings and exit the setup program. When your computer restarts, it should recognize your new drive. If your system still doesn't recognize your new drive, see the troubleshooting section on the back of this sheet.
Note: Serial ATA is a new interface type. Some older systems may see the drive and classify it as a SCSI device if you are using a Serial ATA host adapter. This is normal even though this is not a SCSI disc drive. Many systems? BIOS will not identify a Serial ATA drive connected to a PCI SATA host adapter. This is because a PCI SATA Host Adapter has its own BIOS which is used to identify hard drives connected to it which is separate from the BIOS of the computer. To determine whether or not the SATA Host Adapter is detecting the Serial ATA hard drive, please consult the documentation provided by the Serial ATA Host Adapter?s manufacturer. This does not affect drive performance or capacity.
Microsoft Operating System Installation Instructions
For detailed information about installing a Microsoft operating system on your new Seagate? drive, refer to the Microsoft Knowledgebase Article references below. To locate an article, go to http://support.microsoft.com and enter the article number in any search box on the Microsoft web site.
Operating System Microsoft Knowledgebase Article Numbers
Windows XP
313348
Windows 2000/NT 308209
See also: 175761
Windows Me/98/95 255867
See also: 166172
http://www.seagate.com/ww/v/index.jsp?locale=en-US&name=SATA_Troubleshooter_-_Serial_ATA_Data_and_Power_Cables&vgnextoid=e4644a3cdde5c010VgnVCM100000dd04090aRCRD