Appendix B Heat Dissipation - American Megatrends Enterprise-IV User Manual

Appendix B
Heat Dissipation
The 50 MHz 80486DX and 66 MHz 80486DX2 and P24T are very high performance CPUs that can rival
the performance of any currently available CPU, including RISC processors. However, there is an
undesirable side effect to the high performance — the heat generated by high power consumption.
These CPUs can dissipate 5 – 8 watts of power. Since this power is concentrated in a small area, it is
necessary to remove the heat generated by this power consumption. For this reason we have supplied a heat
sink with all American Megatrends motherboards that have a 50 MHz 80486DX/DX2 or 66 MHz
80486DX2 CPU.
Since American Megatrends manufactures only the motherboard and CPU Card system components,
American Megatrends has no control over operating factors such as air flow and ambient temperature inside
the computer case. The system integrator must make sure that the CPU always operates within a safe
operating temperature range.
Enterprise-IV EISA VLB Motherboard User's Guide
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