Set the bios to boot from SCSI.
"3) 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.
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. This does not affect drive performance or capacity. "
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