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Temperature and Power,
Power Requirements
The Atlas EISA Pentium motherboard requires +5V ~9A. The ISA bus requirements are:
+3.3V
+5V
-5V
+12V
-12V
The +12V power supply to the EISA bus is limited by the power connector.
The +5V supply current to the EISA bus is limited by the power connectors. If the third power connector is
used, ~24 Amps can be used by EISA and PCI adapter cards.
If the third power connector is not used, only ~11 Amps can be used by EISA and PCI adapter cards.
Conclusion
The minimum rating of the power supply should be 230 Watts for a fully loaded motherboard, including a
12V power source.
Appendix A Power Supply Requirements
46
Continued
~13A
~24A
1.6A
5A
2.4A
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