FreeNAS 8.2 not detecting a drive

[FLaSalvia4]

Hey guys, I'm new to the world of FreeNAS. I installed FreeNAS 8.2 on an 8GB flash drive and everything went smoothly. I got into the web interface to configure my drives and it only detected 1 of 2 drives. One is a WD Blue 320GB and the other a Seagate 250GB, the Seagate is the one being detected. I know the WD is good because I used to run Ubuntu off of it right before I decided to make a an old PC build into a NAS computer. It is detected in the BIOS and by an Ubuntu live CD that I formatted it with. I'm not too sure on what else to do, any help would be much appreciated and any information you might need to know can be provided.

System specs:
GIGABYTE GA-MA790X-UD4P
AMD Phenom II X4 940
XFX Radeon HD 4890
G.SKILL 4GB SDRAM DDR2 1066 x2 for 8GB RAM total