like to comment on this..i do admit that i may not be good in OC'ing but its still not an excuse from the samples here not to try at least 1 working setup..if its the chip to blame then AMD has alot of explaining and guiding to do since this is a mislead info about the Deneb..it should have been "Cherry picked" lolx..ive read alot and tried alot..but nothing seems to defy the OCing of this chip..and i have made a 9950BE run at 3.5Ghz and as emersonc's comment a lame 200 or 400 even a par 700 raise is just lame..
As far as Guaranteed 3.9+ on air no that is just wrong, Now up to 3.9+ on air is correct.
The only Guarantee is that the CPU will Run at it's Default Specifications... with possibly the opportunity to go up to 3.9+ on Air.
As Far as Your 9950 goes...You were a lucky one to get one up to 3.5ghz there is alot of people stuck at 3.0ghz.
I am not sticking up for AMD....But they have no explaining to do at all...they owe us nothing.
Some OC High and reach the projected possibility of 3.9+
and some OC less
And as long as the CPU is not DOA the 940's arrive at 3.0ghz
Either way I can understand your frustration ( I have been there before) but you have a couple options which you and only you can decide what to do.