It does work if you manage to get the latest drivers etc.
I run a Raptor and several Samsungs on ICH9R on an ASUS motherboard. It wouldn't even boot in RAID or AHCI mode. I tried all workarounds I could find but in the end, the only thing that worked was to get the latest drivers from Intel. However, they wouldn't install unless the system was in AHCI mode, in which it wouldn't boot.
Luckily, my MB has a Jmicron chipset used for the e-SATA ports.
So, I got a e-SATA > SATA adapter cable, put the system in AHCI mode, booted from JMicron, updated Intel drivers and ... then it worked flawlessly. Now I boot from my single RAPTOR on ICH9R, the system is in RAID mode, I run both RAID0 and RAID1 in Matrix with my Samsungs and performance is good.