Intel KM4AM - Manual (Page 13)

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Hardware Setup
Central Processing Unit: CPU
The mainboard supports AMD ® Athlon™, Athlon™ XP and Duron™ processors in the
462 pin package. The mainboard uses a CPU socket called Socket A for easy CPU
installation. When you are installing the CPU, make sure the CPU has a heat sink
and a cooling fan attached on the top to prevent overheating. If you do not
find the heat sink and cooling fan, contact your dealer to purchase and install them
before turning on the computer.
As processor technology pushes to faster speeds and higher performance, thermal
management becomes increasingly crucial when building computer systems. Main-
taining the proper thermal environment is key to reliable operation. As such, the
processor must be maintained in the specified thermal requirements.
AMD Athlon™/Duron™/Athlon™ XP processor with a speed of 600MHz and above
requires a LARGER heatsink and fan. You also need to add thermal grease between
the CPU and heatsink to improve heat dissipation. Then, make sure that the CPU and
heatsink are securely fastened and in good contact with each other. These are
needed to prevent damaging the processor and ensuring reliable operation. If you
want to get more information on the proper cooling, you can visit AMD’s website for
reference.
WARNING!
Thermal Issue for CPU
CPU Core Speed Derivation Procedure
If CPU Clock = 100MHz
Core/Bus ratio = 14
then CPU core speed = Host Clock x Core/Bus ratio
= 100MHz x 14
= 1.4 GHz