Following the initial round of applause for its graphics capabilities the RS780 chip which powers AMD 780V and 780G motherboards has been found to not play nice with the upcoming Phenom 9100e. As it has been discovered the current revision of the RS780, A12 has a problem with the 1.8GHz Phenom 910e's HyperTransport link which works at 1.6 GHz, significantly lower than that of the Phenom 9500 and 9600s.
When the 9100e is used with A12 silicon the CPU's HT link is set to just 1GHz, this meaning lower performance from the quad-core part. This problem is expected to be fixed with the A13 revision of the RS780 but this won't help early adopters of AMD 780 motherboard that will also buy a 9100e or the 9150e.
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