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Temperature and Power
Temperature Ranges
The maximum motherboard temperature is limited by the Intel Pentium CPU and the 3.3V voltage
regulator. These parts use the most power and are the hottest components.
The temperature range specifications depend on the CPU frequency, the size of the heat sink, the ambient
temperature requirements, and airflow.
The following values are ambient temperatures inside the computer case. The board temperatures reflect the
Pentium CPU Heat dissipation requirements because it will be the hottest component. Temperature
specifications vary with the CPU frequency. See the specifications for the Intel P54C CPU for additional
information.
Frequency
60 or 90 MHz
You must make sure that there is adequate air flow over the CPU inside the case.
Humidity
The recommended humidity range for operation of the American Megatrends Atlas EISA Pentium
motherboard is 20% to 80% non-condensing.
Atlas PCI Pentium EISA Motherboard User's Guide
0.65" Heat Sink
Airflow over
CPU
YES
600 feet per
minute
Airflow over
Temperature
other components
Range
Not critical
0 ° through 50 °
C.
45
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