How to install an Intel 320 SSD in a Dell Precision workstation?

I have a Dell Precision T3400 workstation running Vista x64 Ultimate.  I purchased an Intel 320 series 120GB SSD to serve as a replacement C Drive.  Unfortunately, my A11 BIOS will not recognize the new SATA SSD drive.  Here's what I have done so far:

1. Mounted the SSD on its 3.5 in adapter bracket.
   
2. Unplugged my Precision and opened it up.
   
3. Slide the Intel adapter bracket into the empty SATA drive bay and plugged the SSD into the SATA power cable:
   
   
   
4. Plugged the SSD data cable into my SATA-4 port #4:
   
   
   
5. Rebooted and pressed F2 to enter the BIOS setup and displayed the drive list:
   
   
   
6. Noticed that the SSD was not recognized on the SATA-4 port:
   
   
   
   

What must I do to get the BIOS to recognize the SSD?