The following table lists the jumper settings for all the possible 120MB hard disk drive configurations.

Hard disk drive jumper settings

Jumper

One hard

Two hard disk

Two hard disk

positions

disk drive

drives: master

drives: slave

 

 

 

 

SP

-

X

-

 

 

 

 

DS

X

X

-

 

 

 

 

CS

-

-

-

 

 

 

 

X = jumper Installed

- = no jumper Installed

To move a jumper from one position to the other, use your fingers, needle-nose pliers, or tweezers to pull it off its pins and gently move it to the other position. Be careful not to drop the jumper or damage the pins as you install it.

If you are going to use only one hard disk drive, make sure the jumper is set in position DS. Then see “Installing a Hard Disk in the Vertical Position” on the next page for instructions on installing your first hard disk drive.

If you’ll be using two hard disk drives, install two jumpers on the master drive in positions SP and DS. Do not install any jumpers on the slave drive.

If you are installing both of your hard disk drives at one time, it is easiest to install the drive in the horizontal drive bay first. See “Installing or Removing a Drive in the Horizontal Position” on page 5-19 for instructions.

If one of your hard disk drives is already installed in the computer, follow the steps under “Removing a Hard Disk From the Vertical Position” on page 5-17 to remove it. Then set the jumpers on both drives while they are out of the computer.

5-6 Installing and Removing Drives