The following table lists the jumper settings and their functions.

Main system board jumper settings

Jumper

Jumper

 

number

setting

Function

 

 

 

J1

A’

Enables the built-in VGA display adapter

 

B

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

 

 

 

J2

A’

Enables the buitt-in mouse connector

 

B

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

 

 

 

J3

A

Disables the password function

 

B*

Enables the password function

 

 

 

J4

A*

A color monitor is installed

 

B

A monochrome monitor is installed

 

 

 

•Factory setting

If you need to change any jumper settings, follow these steps:

1.Remove the computer’s cover as described in Chapter 3.

2.Remove any option cards that may be blocking your access to the jumpers. See page 4-15 for instructions.

3.Change the jumper settings.

4.Replace any option cards you removed. See “Installing an Option Card” on page 4-11.

5.Follow the instructions in Chapter 3 to replace the computer’s cover.

4-6 Installing and Removing Options