Epson EQUITY 386SX/16 PLUS - Manual (Page 91)

The following table lists the jumper settings and their
functions.
Main system board jumper settings
A
B*
A
B*
A*
B
A*
B
* Factory setting
Disables the built-in VGA display adapter so you
can use a display adapter on an option card in
your computer as your primary adapter
Enables the built-in VGA display adapter
Disables the password function
Enables the password function
A color monitor is installed
A monochrome monitor is installed
Enables the built-in mouse connector
Disables the built-in mouse connector so you can
use a mouse or other pointing device connected
to a port on an option card in your computer
Enables the IRQ9 signal for the built-in VGA
display adapter
Enables the IRQ9 signal for a display adapter on
an option card
Installing and Removing Options 5-7