Manuals

CAUTION: When handling the riser-board bracket, always hold it by placing a finger through the oval hole in the bracket. Do not grasp the bracket by its edges, which may be sharp.

4. Hold the riser-board bracket by placing your finger in the oval hole. Slightly lift the back end of the riser-board bracket to disengage the fingers on the bracket from the holes in the back of the chassis.
   
   
5. Gently pull the riser-board bracket toward the back of the computer until its front tab is free from the chassis and its three diskette drive tabs are clear of the corresponding slots on the chassis.

To replace the riser-board bracket, perform the following steps:

1. With one hand, hold the back of the diskette drive to prevent it from moving.

CAUTION: When handling the riser-board bracket, always hold it by placing a finger through the oval hole in the bracket. Do not grasp the bracket by its edges, which may be sharp.

2. Hold the riser-board bracket by placing your finger in the oval hole, and position the bracket over the diskette drive.
   
   
3. Align the bracket's inner and outer riser-board securing tabs over the riser board.
   
   
4. Align the three diskette drive tabs with the corresponding slots on the chassis.
   
   
5. Slide the riser-board bracket toward the front of the chassis until the fingers on the back of the bracket snap into the holes on the back of the chassis.
   
   
6. Replace the screw that secures the riser-board bracket to the riser board.
   
   
7. Replace the computer cover.

Expansion Cards

1 PCI expansion-card connector 2 Riser board 3 Expansion card 4 Metal filler bracket 5 Screw

To remove an expansion card, perform the following steps:

1. Remove the computer cover.
   
   
2. Remove the riser-board bracket.
   
   
3. If necessary, disconnect any cables connected to the card.
   
   
4. Remove the screw that secures the filler-bracket cap to the back panel of the computer, and remove the filler-bracket cap.
   
   
5. Remove the screw from the card-mounting bracket.
   
   
6. Grasp the card by its top corners, and ease it out of its connector.

7. If you are removing the card permanently, install a metal filler bracket over the empty card-slot opening in the bracket mount.

NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain Federal Communications Commission (FCC) certification of the system. The brackets also keep dust and dirt out of your computer.

8. Replace the filler-bracket cap and screw that you removed in step 4.
   
   
9. Replace the riser-board bracket.
   
   
10. Replace the computer cover, and reconnect your computer and devices to their electrical outlets and turn them on.

To install an expansion card, perform the following steps:

1. Prepare the expansion card for installation as instructed in the documentation that came with the expansion card.
   
   
2. Check the documentation to make sure the card is configured to work with other devices already installed in your computer.
   
   
3. Remove the computer cover.
   
   
4. Remove the riser-board bracket.
   
   
5. Choose an expansion-card connector for the card.

NOTE: The PCI1 connector (see the following figure) is reserved for use with Dimension C-specific expansion cards available only from Dell. The PCI2 connector is available for use with any one-third–length commercial PCI card.

1 PCI expansion-card connector 2 (PCI2) 2 PCI expansion-card connector 1 (PCI1)

6. Remove the screw that secures the filler-bracket cap to the back panel of the computer (see the following figure), and remove the filler-bracket cap.

1 Filler-bracket cap 2 Screw

7. Unscrew and remove the metal filler bracket that covers the card-slot opening for the expansion slot you intend to use.

8. Insert the expansion card firmly into the expansion-card connector.

9. A cutout in the card-edge connector aligns with a crossbar in the expansion-card connector. Gently rock the card into the connector until it is fully seated.
   
   
10. When the card is firmly seated in the connector, secure the card-mounting bracket with the screw you removed in step 7.

Make sure that the front of the card-edge connector is completely seated in the expansion-card connector. The bottom of the card-mounting bracket must be inside the card-slot opening, and the top of the bracket must be flush against the bracket mount with the notch aligned with the screw hole in the bracket mount.

11. Replace the filler-bracket cap and screw that you removed in step 6.
    
    
12. Connect any cables required for the card as described in the documentation that came with the card.
    
    
13. Replace the riser-board bracket.
    
    
14. Replace the computer cover.
    
    
15. See the documentation that came with the expansion card for information on installing any required drivers for your operating system.

DIMMs

1 Securing clips (2) 2 Slot

To remove a dual in-line memory module (DIMM), perform the following steps:

1. Remove the computer cover.
   
   
2. Remove the riser-board bracket.
   
   
3. Remove the expansion cards.
   
   
4. Press outward on the plastic securing clips at each end of the DIMM socket to release the clips as shown in step 1 of the preceding figure.
   
   
5. Orient the DIMM so that the cutouts on its edge connector align with the crossbars in the central groove of the socket.

6. Insert the DIMM straight down into the socket, making sure that it fits into the vertical guides at each end of the socket.

Press firmly at each end until the DIMM snaps into place (see step 2 of the preceding figure).

If you inserted the DIMM correctly, the securing clips snap into the cutouts at each end of the DIMM (see step 3 of the preceding figure).

7. Replace the expansion cards, riser-board bracket, and the computer cover, and reconnect your computer and devices to their electrical outlets and turn them on.
   
   
8. Enter the system setup program by restarting the computer and pressing <Del> when the blue Dell logo screen appears. Verify that the amount displayed for Total Memory on the System Information screen is correct.

If the memory total is incorrect, turn off the computer, and remove the riser-board bracket, expansion cards, and computer cover. Then reseat the DIMMs in their sockets, and repeat step 7.

NOTE: The system memory value reported by the operating system is 1 or 2 MB less than the memory installed because that memory is reserved for video functions. For example, if the computer has 64 MB of system memory, the operating system may report 62 or 63 MB.

To remove a DIMM, perform the following steps:

1. Remove the computer cover.
   
   
2. Remove the riser-board bracket.
   
   
3. Remove the expansion cards.
   
   
4. Press outward on the plastic securing clips at each end of the DIMM socket until the DIMM disengages from the socket (see the following figure).

1 Securing clips (2)

5. Replace the expansion cards, riser-board bracket, and the computer cover, and reconnect your computer and devices to their electrical outlets and turn them on.
   
   
6. Enter the system setup program by restarting the computer and press <Del> when the blue Dell logo screen appears. Verify that the amount displayed for Total Memory on the System Information screen is correct.

NOTE: The system memory value reported by the operating system is 1 or 2 MB less than the memory installed because that memory is reserved for video functions. For example, if the computer has 64 MB of system memory, the operating system may report 62 or 63 MB.

Battery

1 Battery 2 Battery socket

A 3.0-V CR2032 coin-cell battery mounted in a system board socket maintains system configuration, date, and time information. The battery can last several years.

NOTE: Leave your power strip turned on when the computer is turned off to extend battery life.

If the battery expires, the computer loses the system configuration information whenever it is disconnected from its electrical outlet. If you have to repeatedly reset this information after turning on the computer, replace the battery.

To replace the system battery with another CR2032 coin-cell battery, perform the following steps.

CAUTION: There is a danger of a new battery exploding if it is incorrectly installed. Replace the battery only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer’s instructions.

1. Make a copy of the screens in the system setup program.

You will need a written or printed copy of the system setup program configuration information to restore the correct settings later.

2. Remove the computer cover.
   
   
3. Remove the riser-board bracket.
   
   
4. Remove the front bezel by slightly lifting the three bezel tabs (see the following figure), and gently pulling the bezel away from the front panel.
   
   

   1 Screws (2) 2 Front panel 3 Drive shelf 4 Front panel tabs (3)

5. Remove the drive shelf screws, and lift the drive shelf approximately one-half inch.
   

The drive shelf is attached to the chassis with two screws—one to the right of the optical drive and one to the left of the diskette drive as you face the front of the computer (see the preceding figure).

6. Locate the battery on the system board, and pry it out of its socket with your fingers or with a blunt, nonconductive object, such as a plastic screwdriver.

7. Insert the battery into the socket with the side labeled “+” facing up.

8. Lower the drive shelf and replace the two screws that you removed in step 5.
   
   
9. Replace the riser-board bracket and computer cover, and reconnect your computer and devices to their electrical outlets and turn them on.
   
   
10. Enter the system setup program by pressing <Del> when the blue Dell logo screen appears, and restore the correct settings.