My Data Drive is a Raid0 array so I have Raid Enabled. But since my SSD is not in a Raid Array TRIM still works.
Here's a simple test to verify if TRIM is working. Run the AS SSD Benchmark as a Base Result. Here I've scored a 184.
Now create a temporary folder on your C: drive, or whatever drive letter is assigned to your SSD. Add a large quanity of files to this folder. I copied all my wallpapers and the contents of my download folder, approximately 5GB. Now run the AS SSD Benchmark again. You'll see my drive speed took a tremondous hit and scores a 146.
Now Delete the Temporary Folder and empty the Recycle Bin. This will force Windows to issue the TRIM command. Run the AS SSD Benchmark again. My drive is now at 185, TRIM is working.