Epson Equity 386/25 User Manual download pdf (Page 166)

Appendix A

Changing Jumper and DIP Switch Settings

If you change your computer’s configuration or need to alter the

way your computer operates, you may need to change a jumper

or DIP switch setting inside the computer.

A jumper is a small electrical connector that controls one of the

computer’s functions. The jumpers you may need to change are

on the main system board and the SPF (serial/parallel/floppy) card.

A DIP switch is similar to a light switch; you turn it on or off by

flipping the switch. The ON position is shown next to the DIP

switches, which are located on the main system board.

This appendix describes both types of settings and tells you how

to change them, if necessary. You need to change the jumper

settings inside the computer if you want to make modifications

such as the following:

Change the system operating speed from 25 MHz to

24 MHz or vice versa

Add a serial or parallel port on an option card and want to

make that port the primary port

Add an option card that controls a hard disk drive or a mouse.

You must check or change the DIP switch settings if you make

other modifications, such as these:

Add memory modules

Change the size of your base memory

Change the type of monitor you use.

Check the following sections to see if you need to change any of

the jumper or DIP switch settings inside your computer.

Changing Jumper and DIP Switch Settings

A-1

1 2 ... 161 162 163 164 165 166 167 168 169 170 171 ... 295 296

No comments

Epson Equity 386/25 User Manual Page 166