User Guide Desktop PC Equity 386SX/16 PLUS

A math coprocessor speeds up the numeric calculations your

computer performs when using certain application software.

If you purchase a math coprocessor, it is a good idea to ask

your dealer to install it for you, because it can be damaged

easily. If you decide to install it yourself, follow the

appropriate steps in this chapter.

This chapter also explains how to change the jumper settings

inside the computer. You may need to change jumper

settings if you install certain types of options or if you want

to change the way your computer operates.

If you need to replace the battery for your computer’s

real-time clock and CMOS RAM, you can follow the

instructions in this chapter.

To change jumper settings, replace the battery, or install any

of the options mentioned above, you need to remove the

cover from the computer. You may also need to remove the

subassembly. Be sure to heed all the warnings in this chapter

so you do not injure yourself or damage the computer.

Removing the Cover

To access any internal components, you need to remove the

computer’s cover. Follow these steps:

Turn off the computer and then any peripheral devices

(including the monitor and printer).

Disconnect the computer’s power cable from the

electrical outlet and from the back panel. Then

disconnect any cables that are connected to the

computer, including the keyboard cable.

If the monitor is on top of the computer, lift it off and set

it to one side.

5-2

Installing and

Removing

Options