Users Guide

Installing Upgrades 77

NOTE: After you open and close the cover, the chassis intrusion detector

causes the following message to appear on the screen at the next computer

start-up:

ALERT! Cover was previously removed.

Reset the chassis intrusion detector by changing Chassis Intrusion to

Enabled or Enabled-Silent.

NOTE: If a setup password has been assigned by someone else, contact

your network administrator for information on resetting the chassis

intrusion detector.

If you installed a sound card, perform the following steps:

a Enter system setup, select Integrated Devices, and change the

setting for Sound to Off.

16 Connect external audio devices to the sound card’s connectors. Do not

connect external audio devices to the microphone,

speaker/headphone, or line-in connectors on the I/O panel (see “I/O

Panel—Small Form-Factor, Desktop, and Mini-Tower Computers”).

NOTE: Problems may

arise if two expansion

cards are trying to use the

same resources: memory,

I/O addresses, and IRQs.

To avoid this type of

conflict, see “Interrupt

Assignment Conflicts”

and the documentation

that came with the card

for more information.

If you installed an add-in network adapter, perform the following steps:

a Enter system setup, select Integrated Devices and change the

setting for Network Interface Card to Off.

b Connect the network cable to the add-in network adapter’s

connectors. Do not connect the network cable to the integrated

connector on the I/O panel (see “I/O Panel—Small Form-Factor,

Desktop, and Mini-Tower Computers”).

Removing an Expansion Card

CAUTION: Before you perform this procedure, see “CAUTION:

Safety Instructions.”

NOTICE: Before disconnecting a device from the computer, wait 10 to 20

seconds after disconnecting the computer from its electrical outlet. Before

removing a component from the system board, verify that the standby power

light on the system board has turned off. To locate this light, see “System

Board Components.”

Turn off the computer and devices, disconnect them from their

electrical outlets, and wait 10 to 20 seconds.

2 Open the computer cover.

3 In the small desktop computer, remove the expansion-card cage.