AMD KM780V Manuel D’Utilisation

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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 
i
Hot air flowing out 
Cool air flowing 
i
Hot air flowing out