What does Maximum System TDP mean?
Maximum System TDP is the aggregate of the maximum TDP values for the Processor(s), MCH, and ICH of the grouping you have chosen or the search feature has found. Note that MCHs & ICHs may have varying TDP values depending on the number of active memory channels, the front-side bus speed, and other such factors. Please consult the respective Thermal Design Guides for the parts in question. For the sake of safe estimates, we have always chosen the highest possible TDP values.