Nvidia MCP 78S User Manual page 51

We recommend users choose motherboards with power design of 4-phase, 4+1
phase or more for CPUs that demand 89W or 95W power consumption.
We recommend users choose motherboards with power design of 5-phase, 5+1
phase or more for CPUs that demand 125W or 140W power consumption.
Subject 2: Suggestion on choosing electric fan
Both the amount of electric current to MOSFET and the heat produced from the
motherboard go up as AMD's CPU power consumption increases. In this case
we recommend users select a CPU fan with air outlet towards MOSFET so that
CPU fan can carry away heat produced by MOSFET, for better heat dissipation
effects. At the same time we suggest using well-ventilated cases to maintain
temperature as 38℃ approximately inside.( 38℃ is recommended by CPU manufactures)
Figure 1---- CPU Fan can not blow off the heat produced by MOSFET. We suggest
not to using fans of this kind
Figure 2---- CPU Fan can blow off the heat produced by MOSFET. We suggest using
fans of this kind
Cool air flowing in
Hot air flowing out
Cool air flowing in
Hot air flowing out
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