added a new 1tb drive to my system. It shows up in BIOS fine, but not in Explorer.
Where do I go to format the drive, I can't find the utility on Windows 7.
If the drive is not showing up in explorer its likely because its not formatted in a format that Windows recognizes. You can open the Disk Management console by running diskmgmt.msc from the run dialog. You should then see your new disk there. You can then create a new partition and format it as you would like.
Alternatively, if you like the command line you can use the diskpart.exe utility.