Not sure of the Extra flags...unless you refer too...
IN CGminer setting I use for Rig one....The one with the 7870.
GPU 0 = 6870 (Monitor plugged in) (I) Intensity = 7
GPU 1 = 7870 (I) = 16
In MSI afterburner Fans are Linked, and on Auto
GPU 0 = Mem 525 | Core = 1000 | Mhash = 305 | Temp = 68c |Fan % = 65 -75 (this is one of my oldest cards. 24/7 over a year)
GPU 1 = Mem 600 | Core = 1152 | Mhash = 410 | Temp = 70c | Fan % (Linked to above) Card is only been 24/7 for 3 Weeks
Using Win 7 x64
AMD APP = 2.5