No dont do like that, i should have been more specific. pls make SR vdd1= 0. For starters put a voltage of 48 for 720, 51 for 805.

With SR=1 (on) even if it says 60 for a particular frequency, it will only supply much less than that, but when you disable it, mpu(processor) will be supplied with 60, which is more than enough (70 is overvoltage which will fry ur mpu!), so lower it to the figures i've mentioned earlier and keep lowering them untill u find the sweet spot.