Using the ReadyCache with Intel Rapid Storage Technology?

Intel Rapid Software was working  with ReadyChache/Expresscache for a 3 or 4 starts of windows 7 x64 and then it stopped to work until I disconnect Sandisk Readycache from SATA port. I’ve got RAID-5 + non raid Sandisk. How can I use it with my configuration. I tried everything I could but it’s like a lottery. Some technical support/ info for me?

Thank you in advance