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Jumper settings for base memory
Base memory
Jumper JP13
640KB
A’
Jumper JP14
A’
512KB
B
A
256KB
B B
l Factory setting
Jumper settings for extended memory
l Factory setting
Jumper settings for alternate 25 MHz microprocessor
Jumper Jumper Function
number setting
JP2
A
B*
80487SX installed; NMI signal
80486SX installed; NMI signal
80487SX installed; FERR signal
80486SX installed; FERR signal
* Factory setting; these jumpers are not used for the 50 MHz microprocessor
6-6 Installing and Removing Options