Asus released a list of motherboards that support 140W CPUs. This is necessary for AMD's upcoming Phenom 9950, this 2.6GHz chip will have a massive 140W TDP.
ASUS has once again kept up with leading trends and technologies by announcing the release of a wide range of high-performance motherboards to take advantage of the most high-end and upcoming 140W Powered CPU. The CPU is equipped with the fastest CPU core frequencies among AMD Phenom CPUs, and will provide awesome performances for thread-intensive games and applications; backed with a solid power design for the most stable operations. ASUS is the first motherboard producer to offer the most completed product lines to support these latest 140W powered CPUs – providing users with the most flexible choice of motherboards for the future.
Here's a list of the 140W CPU support motherboards from Asus: