The system should have already changed the value of System Memory to reflect the newly installed memory. Verify the new total.

NOTE: If the memory total is incorrect, turn off and disconnect your computer and peripherals from their power sources. Remove the computer cover, rotate the power supply, and check the installed DIMMs to make sure that they are seated properly in their sockets. Then repeat steps 5, 6, and 7.

8.While in the System Setup program, reset the chassis intrusion detector by changing Chassis Intrusion to Not Detected. See "Using the System Setup Program" for instructions.

NOTE: If a setup password has been assigned by someone else, contact your network administrator for information on resetting the chassis intrusion detector.

9.When the System Memory total is correct, press the <Esc> key to exit the System Setup program.

10.Run the Dell Diagnostics to verify that the DIMMs are operating properly.

See your Diagnostics and Troubleshooting Guide for information on running the diagnostics and troubleshooting any problems that may occur.

Installing a DIMM

If a DIMM is already installed in the socket you want to use, you must remove it. To do so, follow the instructions in the next subsection, Removing a DIMM."

Use the following procedure to install a DIMM (see Figure 9-6):

1.Locate the plastic securing clips at each end of the socket. Press the clips outward until they snap open.

2.Press the DIMM straight into the slot running down the center of the socket until the securing tabs snap into place around the ends of the DIMM.

Figure 9-6. Installing a DIMM

Removing a DIMM

To remove a DIMM, press the securing clips outward simultaneously until the DIMM disengages from the socket (see Figure 9-7). It should pop out slightly.

Figure 9-7. Removing a DIMM

Pentium II® Xeon® Processor Upgrades

To take advantage of future options in speed and functionality, you can add a second Pentium II Xeon processor or replace