Removing an Expansion Card

Follow this general procedure to remove an expansion card:

1.If you are removing a non-Plug and Play ISA expansion card, enter the ICU and remove the expansion card from your configuration.

See Chapter 3, “Using the ISA Configuration Util- ity,” for instructions.

2.Remove the computer cover according to the instructions in “Removing the Computer Cover” in Chapter 5.

CAUTION: See “Protecting Against Electro- static Discharge” in the safety instructions at the front of this guide.

3.If necessary, disconnect any cables connected to the card.

4.Remove the expansion-card cage as instructed in “Removing the Expansion-Card Cage” in Chap- ter 5.

5.Unscrew the mounting bracket of the card you want to remove.

6.Grasp the card by its outside 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.

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

8.Replace the expansion-card cage in the chassis as instructed in “Replacing the Expansion-Card Cage” in Chapter 5.

9.Replace the computer cover, reconnect your com- puter and peripherals to their power sources, and turn them on.

Adding Memory

Memory can be increased to a maximum of 384 mega- bytes (MB) by installing combinations of 16-, 32-, 64-, or 128-MB dual in-line memory modules (DIMMs) in the three DIMM sockets on the system board. Figure 6-6 shows the DIMMs and DIMM sockets.

Your system can support both error checking and correction (ECC) and non-parity synchronous dynamic random-access memory (SDRAM) DIMMs. However, ECC support is available only if all DIMMs are ECC DIMMs. ECC DIMMs enable your system to correct all single-bit memory errors and detect multibit memory errors.

DIMMs (3)

DIMM sockets

6-4 Dell OptiPlex GXa Mini Tower Systems Reference and Installation Guide

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Dell Mini Tower System manual Adding Memory, Removing an Expansion Card