Windows 7 does not recognize second hard drive

[cecil]

I am doing a new build with Windows 7 64 and everything going well, bios detected 2nd hard drive but when Windows was finished installing only the one "C" drive exists. The other does not show in the system information. I tried another different hard drive and the same thing happened. The motherboard was purchased about a year and a half ago, MSI 790FX-GD70. I am trying to install 2 Samsung 1 TB drives. I can't seem to find any help for this??? Thanks

[treavorbell]

I just wrote about 2 pages worth of stuff and clicked on POST and for WHATEVER reason it deleted everythign I wrote. So I will make this short n sweet.

-Start
-[Right Click] Computer
-Manage
-Disc Management
-Allocate drives / partition
(google how to partition hard drives in windows 7 its easy)

If you get an Error about redudancies your drives might be bad.