I know mines a 3700+ but at stock it too is 2.2GHz.
got it to 2.92GHz lastnight and stable with OCCT at 1.44 volts. RAM got to 230 at 3.0v @1.5-2-2-5
you should be able to get your CPU to 2.6 atleast till you might need to up the vcore a bit.
I had a few problems I ran into. like not being able to boot, just had to reset cmos and it was reset back to normal settings.
got it to 2.92GHz lastnight and stable with OCCT at 1.44 volts. RAM got to 230 at 3.0v @1.5-2-2-5
you should be able to get your CPU to 2.6 atleast till you might need to up the vcore a bit.
I had a few problems I ran into. like not being able to boot, just had to reset cmos and it was reset back to normal settings.