The latest IRST driver, which is classified as a RAID driver, although it works great in AHCI mode, is 11.6.0.1030. That one is a bit finicky on some systems, in RAID mode Window sees it as a SCSI driver, and the IRST Windows GUI does not work when third party SATA controllers (Marvell, ASMedia) are enabled with their standard drivers.
I would suggest IRST 11.2.0.1006, which you can get direct from Intel here:
What mother board or Intel SATA chipset are you using?
