American Megatrends Enterprise-III User Manual page 21

J7 Select Processor Type
J7 is a four-pin single-inline berg that selects the processor type. Pins 1-2 and 3-4 are shorted if the Enterprise-III EISA
motherboard has an 80486DX or 80486DX2 microprocessor. Pins 2-3 are shorted if the motherboard has an
80486SX processor. Set J7 before installing the motherboard. See the graphic on the following page for the location
of J7. J7 look like this.
Chapter 4 AMIBIOS POST
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