|Depending on which SATA header on the mboard you have that hard drive connected to, the drive must be jumpered as master or slave, as well as, in your case, being jumpered to run at 150mbps. (Personally I never use CS - cable select - jumpering). To determine which way the drive should be jumpered on which SATA header see your mboard manual.|
Note that the label on the hard drive that shows where the jumpers go may be upside down or backwards in relation to the jumper pins on the back of the drive - usually it shows the pins in relation to where the power connector plugs in - go by that.
Or you can look up the jumper settings for your model on the manufacturer's web site if the drive is already installed and you would have to remove it see the label.
Some more recent computer bioses will recognize a drive even if it is jumpered as slave when it should be jumpered as master, but the WD Lifeguard Tools utility, or Windows, may not recognize the drive if it is jumpered as slave when it should be jumpered as master.
If Windows is recognizing the drive, there will be an entry for it in Device Manager - Disk Drives, and it will show up in Control Panel - Administrative Tools - Computer Management - Disk Management.
If the drive is not partitioned and formatted yet it will not show up in My Computer and Windows Explorer - you can do that in Disk Mangement, or use a utility that is supplied with the hard drive or that can be downloaded from the manufacturer of the hard drive's web site, in your case WD's Lifeguard Tools.
Also see your mboard manual regarding SATA drive settings - e.g. SATA drives can be in IDE emulation mode, or in one of several other modes.
If the drive you are installing is going to be the one Windows boots from, you must install SATA drivers for the mboard SATA controllers near the beginning of Setup, otherwise Windows can't see the drive. If you are using the drive only for storage and there is already another drive that Windows boots from that is SATA, or it's IDE and the mboard drivers have been loaded including those for the SATA controllers on the mboard(which is standard procedure)the SATA drivers are already there and the drive will be recognized in Windows.