You have probably different colored SATA ports on the motherboard. Make sure that you're plugging the SSD into a SATA3 (6Gbps) port instead of the SATA2 (3Gbps)
OFF TOPIC: What size of SSD is it? I've played around with Intel's Smart Response Technology and am very impressed at it's speeds.
Just to give you an idea of SRT. My current configuration is:
SRT Cache: 1x64GB SATA3 SSD
Raid 0: 2x500GB SATA2 7200RPM HDD
I copied a large VM image from the hard drive (SRT + RAID0) to another SSD drive.
If you've not played around with it or don't know what it is, It's where you use 20GB up to 64GB of a SSD to cache the data on your physical platter hard drive. When it gets a chance, it will write back to the HDD from the SSD.