The problem is that many are trying to use one of the higher-end CPUs with a motherboard with a 780 chipset. According to AMD, the 790 chipset - not the 780 - should be used with the 9750 and 9850 processors.
The lower-end 9600 and 9550 models that have a TDP of 95 watts.
According to AMD spokesman Jake Whitman,
“What people have done, mistakenly, is paired a 780G (chipset-based) motherboard with the higher frequency Phenom–the 125-watt Phenom. They’ve taken an enthusiast-class quad-core part and paired it with a mainstream motherboard, and not all motherboard manufacturers have tweaked their boards to support a 125-watt TDP."
So there's your simple answer: don't pair an enthusiast-class CPU with a mainstream or even low-end motherboard. And as much as AMD has had its issues of late, let's not blame them for a problem not of their making.
Source: By Tech Ex