That's where you would be wrong. The crosshair IV does have it. i just looked! In my opinion its a bloody good board!
And after a bit of fiddling I'm quite happy with my 5070 mhz overclock. It can go higher. HOWEVER i didnt really want it above 1.4 volts and this clokc is stable enough to use cool 'n' quiet! (i have to live in a small university room with this computer, so heat and noise can be annoying when sleeping!