Sorry, I should have been more specific on the issue that I have. The IRST driver package installer has not created a start menu entry for the management application and I don't know where to look for it (the docs don't mention any executable name). Coming from OS X the possibility to do this kind of performance tuning is new to me.
Oh, and I have enabled RAID in BIOS.
EDIT: It looks like Intel's Download Center is down so no luck trying to find anything there, either...