I have been having some problems with my Raid 0 set up and found that I have two W?D 74gig 10K rpm raptors but they seem to have different modle numbers.

bottom right corner

I took a look through W/D web site but was unable to find any referance to the diferance. Any of you run into this or know what the deal is?
I took the drives out and their labels are identical so I am not sure if this is the root of my problem.

(system has been slugish even after a fresh install with current drivers, then yesterday I lost my "D:/ & E:/ " partitions, just shows up as "unpartitioned space now"