Dell OptiPlex GX400 User Manual
Dell™OptiPlex™GX400SystemUser'sGuide
Safety Instructions
Safety First—For You and Your Computer
Protecting Against Electrostatic Discharge
Ergonomic Computing Habits
About Your Computer
Front View of Your Computer
Back View of Your Computer
Inside Your Computer
Advanced Features
System Settings
Manageability
Security
Password Protection
Jumper Settings
Installing and Configuring Software
TAPI
Power Management
Installing Upgrades
Computer Cover
Power Supply
Front Panel
System Memory
Disk Drives and Media
AGP Card Brace
Expansion Cards
Microprocessor
VRM
System Battery
Technical Specifications
Solving Problems
Before You Begin
Dell Diagnostics
Messages and Codes
Software Problems
Getting Help
Help Overview
Dell Contact Numbers
Additional Information
Regulatory Notices
ENERGY STAR®Compliance
Limited Warranty and Return Policy
Microsoft®Windows®XP Features
Notes, Notices, and Cautions
Information in this document is subject to change without notice.
©2001 Dell Computer Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden.
Trademarks used in this text: Dell, OptiPlex, Dell OpenManage, Dimension, Inspiron, Latitude, DellWare, and the DELL logo are trademarks of Dell Computer Corporation; Microsoft,
Windows, MS-DOS, and Windows NT are registered trademarks of Microsoft Corporation; Intel and Pentium are registered trademarks of Intel Corporation; 3Com is a registered
trademark of 3Com Corporation. As an ENERGY STAR Partner, Dell Computer Corporation has determined that this product meets the ENERGY STAR guidelines for energy
efficiency.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Computer Corporation
disclaims any proprietary interest in trademarks and trade names other than its own.
September 2001 P/N 66CUJ Rev. A01
NOTE: A NOTE indicates important information that helps you make better use of your computer.
NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death.
Back to Contents Page
About Your Computer
Dell™OptiPlex™GX400SystemUser'sGuide
Front View of Your Computer
Back View of Your Computer
Inside Your Computer
Front View of Your Computer
The following illustration shows the controls and indicators located on the front panel of your computer.
Front View
Controls and Indicators
l Reset button — reboots (restarts) the system in a way that reduces stress on system components. Before you push this button, save and close all open
files and application programs to avoid losing data. Then perform an orderly shutdown of the operating system.
If your computer is not responding, you can press the reset button to reboot the system. For more information, see "Recover From a Program That Is
Not Responding" and "Restart a Computer That Is Not Responding."
l Power button — controls the system's AC input power. See the following table for power button functions on systems running Microsoft®Windows®98
SecondEdition(SE),Windows2000,WindowsXP,orWindowsNT®.
NOTICE: If your computer is not responding, turning off power or unplugging the power cord should be done only as a last resort. Doing so can cause
problems with system settings and configuration.
Power Button Functions
Computer Status
Power Button Functions
Off
Push and release to turn the computer on
On
Push and hold for more than 6 seconds to immediately turn the computer off
On
Push and release to attempt an orderly system shutdown
Suspended state
Push and release to bring the system out of the suspended state
l Power indicator — contains a light that illuminates in two colors and blinks or remains solid to indicate different states.
l Diskette-drive access indicator — lights when the drive is reading data from, or writing data to, a diskette. Wait until this indicator turns off before you
remove a diskette from the drive.
l Hard-drive access indicator — lights when a hard drive or CD drive is reading data from, or writing data to, the drive.
l Cover release button — releases the computer cover; located on back of chassis.
Back View of Your Computer
The following illustration shows the connectors and indicators on the back of your computer for attaching external devices.
Back-Panel Connectors and Indicators
Connecting Devices
When you connect external devices to your computer's back panel, follow these guidelines:
l Check the documentation that accompanied the device for specific installation and configuration instructions.
For example, you must connect most devices to a particular input/output (I/O) port or connector to operate properly. Also, external devices like a printer
usually require you to load device drivers before they will work.
l When connecting a Universal Serial Bus (USB) mouse or keyboard, make sure you connect to one of the Port 1 USB connectors.
l Always attach external devices while your computer is turned off. Then turn on the computer before turning on any external devices, unless the
documentation for the device specifies otherwise.
Serial Port Connectors
Default port designations: COM1 for serial port 1 and COM2 for serial port 2. You can reassign the serial port's designation in system setup if you add an
expansion card containing a serial port using this designation.
If you set the system's serial ports to Auto in system setup and add an expansion card containing a serial port configured to a specific designation, the
computer automatically maps (assigns) the integrated ports to the appropriate COM setting as necessary.
Before you add a card with a serial port, check the documentation that accompanied your software to make sure that the software can be mapped to the new
COM port designation.
Parallel Port Connector
Used to connect printers. Default designation: LPT1.
Microphone Jack
Used to attach a standard personal computer microphone. Connect the audio cable from the microphone to the microphone jack.
Line-Out/Speaker Jack
Used to attach computer speakers. This jack is amplified, so speakers with integrated amplifiers are not required. Connect the audio cable from the speakers
to this jack.
Line-In Jack
NOTICE: When you disconnect external devices from the back of the computer, wait 5 seconds after turning off the computer before you reconnect any
devices to avoid possible damage to the system board.
NOTE: The integrated parallel port is automatically disabled if the system detects an installed expansion card containing a parallel port configured to
the same address as specified in the Parallel Port option in system setup.
Used to attach record/playback devices such as cassette players, CD players, and VCRs. Connect the line-out cable from any of these devices to the line-in
jack.
PS/2 Mouse Connector
Attach the Personal System/2 (PS/2) mouse cable to the 6-pin mouse connector on the back panel. If your system uses Microsoft Windows 2000, Windows XP,
or Windows NT, Dell installed the necessary mouse drivers on your hard drive.
PS/2 Keyboard Connector
Attach the PS/2 keyboard cable to the 6-pin keyboard connector on the back panel.
USB Connectors
Used to attach USB-compliant devices such as keyboards, mice, printers, and computer speakers to your system.
NIC Connector
The network interface controller (NIC), which includes a Remote Wake Up feature, has the following indicators:
l A yellow network activity indicator flashes when the system is transmitting or receiving network data. (A high volume of network traffic may make this
indicator appear to be in a steady "on" state.)
l A dual-colored network link integrity and speed indicator, which is green when a good connection exists between a 10-megabits per second (Mbps)
network and the NIC, or is orange when a good connection exists between a 100-Mbps network and the NIC. When the orange or green indicator is off,
the computer is not detecting a physical connection to the network.
Network Cable Requirements
The NIC connector attaches an unshielded twisted pair (UTP) Ethernet cable to your system. Press one end of the UTP cable into the NIC connector until the
cable snaps securely into place. Connect the other end to an RJ45 jack wall plate or to an RJ45 port on a UTP concentrator or hub, depending on your network
configuration.
A 100-Mbps network requires Category 5 wiring and connectors. A 10-Mbps network requires Category 3 or Category 5 wiring and connectors.
Video Connector
Used to attach a video graphics array (VGA)-compatible monitor to your system.
Inside Your Computer
The following illustration shows your computer with the covers removed.
Inside the Chassis
NOTE: This connector is similar to the keyboard connector. Make sure you correctly identify the mouse connector before you connect the device.
NOTE: Do not attempt to operate a PS/2 mouse and a USB mouse simultaneously.
NOTE: This connector is similar to the mouse connector. Make sure you correctly identify the keyboard connector before you connect the device.
NOTE: When connecting a USB mouse or keyboard, make sure you connect to one of the Port 1 USB connectors.
NOTE: Do not attempt to operate a PS/2 mouse and a USB mouse simultaneously.
NOTICE: USB devices do not operate with Microsoft Windows NT.
System Board Components
The following illustration shows the system board and the location of its principal connectors and components.
System Board Components
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Advanced Features
Dell™OptiPlex™GX400SystemUser'sGuide
System Settings
Manageability
Security
Password Protection
Jumper Settings
Installing and Configuring Software
TAPI
Power Management
System Settings
Each time you start your computer, it compares the installed hardware with the system configuration information stored in nonvolatile random-access memory
(NVRAM). If the system detects a discrepancy, it generates an error message for each incorrect configuration setting.
You can use system settings as follows:
l To set user-selectable options such as date and time or system password
l To set the current configuration information such as the amount of memory or type of hard drive installed
You can view the current settings at any time. Dell recommends that you record the information for future reference. If you have a line printer connected to the
parallel port on your computer, you can print the system setup screens by pressing <Print Screen>.
Before you use system setup, you need to know the kind of diskette drive(s) and hard drive(s) installed in your computer. If you are unsure of this information,
see the Manufacturing Test Report that came with your system and is located in the Dell Accessories folder.
Entering System Setup
1. Turn on your system.
2. If your system is already on, restart it.
3. When F2 = Setup appears in the upper-right corner of the screen, press <F2>.
If you wait too long and your operating system begins to load into memory, let the system complete the load operation; then restart the system and try again.
System Setup Screens
The system setup screens display the current configuration information for your computer. Information on the screen is organized into four areas:
l Title — the box at the top of all screens that lists the computer system name.
l Computer data — two boxes below the title box that display your system processor, level 2 (L2) cache, service tag, and the version number of the basic
input/output system (BIOS).
l Options — a scrollable box listing options that define the configuration of your computer, including installed hardware, power conservation, and security
features.
Fields to the right of the option titles contain settings or values. Those that you can change appear bright on the screen. Those that you cannot change
(because they are set by the computer) appear less bright. When <Enter> appears to the right of an option title, press <Enter> to access a pop-up
menu of additional options.
l Key functions — a line of boxes across the bottom of all screens that lists keys and their functions within system setup.
l Help — press <F1> for information in the currently highlighted option.
System Setup Navigation Keys
The following table lists the keys you use to view or change information in system setup and to exit setup.
NOTE: To ensure an orderly system shutdown, consult the documentation that accompanied your operating system.
SystemSetupNavigationKeys
Keys
Action
Moves to the next field.
Changing the Boot Sequence
The boot sequence allows you to specify the order of the devices from which the system attempts to boot.
1. Press <Enter> to access the Boot Sequence option's pop-up menu.
2. Press the up- and down-arrow keys to move through the list of devices.
3. Press the spacebar to enable or disable a device (enabled devices appear with a check mark).
4. Press plus (+) or minus (–) to move a selected device up or down the list.
Option settings:
l Diskette Drive A: — The system attempts to boot from the diskette drive. If the system finds a diskette in the drive that is not bootable, an error
message appears. If no diskette is in the drive, the system attempts to boot from the next device in the list.
l Hard Drive — The system attempts to boot from the primary hard drive. If the system does not find an operating system on the drive, it attempts to
boot from the next device in the list.
l CD-ROM Device — The system attempts to boot from the CD drive. If the system does not find a CD in the drive or if there is not an operating system
on the CD, the system attempts to boot from the next device in the list.
l MBA (Onboard NIC) — The system prompts you to press <Ctrl><Alt><b> at the Dell logo screen during boot. A menu appears that allows you to select
a method for booting from a network server. If a boot routine is not available from the network server, the system attempts to boot from the next
device in the list.
Manageability
l DellOpenManage™ITAssistant
l Dell OpenManage Client Instrumentation
Dell OpenManage IT Assistant
DellOpenManageITAssistantisthepremierDell™systemsmanagementapplicationforconfiguring,managing,andmonitoringcomputersandotherdevices
on a corporate network. IT Assistant employs the latest remote management technology to provide asset management, configuration management, event
(alert) management, and security management for systems equipped with industry-standard management software. Software of this type is called system
management instrumentation.
IT Assistant supports instrumentation that conforms to the following industry standards:
l Simple Network Management Protocol (SNMP)
Moves to the previous field.
Cycles through the options in a field. In many fields, you can also type the appropriate value.
Scrolls through help information.
Enters the selected field's pop-up options menu.
spacebar or
In the selected field's pop-up options menu, cycles through the options in a field.
Exits system setup without rebooting the system and returns the system to the boot routine.
Exits system setup and reboots the system, implementing any changes you have made.
Resets the selected option to its default setting.
NOTE: For most of the options, any changes you make are recorded but do not take effect until the next time you boot the computer. For a few options
(as noted in the help area), the changes take effect immediately.
NOTE: Write down your current boot sequence in case you want to restore it.
l Desktop Management Interface (DMI)
l Common Information Model (CIM)
The instrumentation available for your computer is Dell OpenManage Client instrumentation, which is based on DMI and CIM. For more information on IT
Assistant, see the Dell OpenManage IT Assistant User's Guide available on the Dell website.
Dell OpenManage Client Instrumentation
Dell OpenManage Client Instrumentation is software that enables remote management application programs such as IT Assistant to do the following:
l Access information about your computer, such as how many processors it has and what operating system it is running
l Monitor the status of your computer, such as listening for thermal alerts from temperature probes or hard drive failure alerts from storage devices
l Change the state of your computer, such as updating its BIOS or shutting it down remotely
Dell OpenManage Client Instrumentation can be installed on computers like yours, which, when set up on a network with IT Assistant, are called managed
systems. For more information about Dell OpenManage Client Instrumentation, see the Dell OpenManage Client Instrumentation User's Guide available on the
Dell website.
Security
The computer provides the following methods of physically securing the chassis:
l Chassis intrusion detection
l Security cable slot and padlock ring
Chassis Intrusion Detection
The chassis intrusion monitor can detect whether the chassis is opened. The Chassis Intrusion option in system setup displays the status of the monitor.
1. Enter system setup.
2. Press the down-arrow key to move to the System Security option.
3. Press <Enter> to access the System Security option's pop-up menu.
4. Press the down-arrow key to move to the Chassis Intrusion option.
5. Press the spacebar to select an option setting.
Option settings:
l Enabled (the default) — When the computer cover is removed with this setting, a DMI event is generated, the setting changes to Detected, and the
following message appears during the boot routine at the next system start-up:
Alert! Cover was previously removed.
To reset the Detected setting, enter system setup during the system's power-on self-test (POST). In the Chassis Intrusion option, press the left- or
right-arrow key to select Reset, and then choose Enabled, Enabled-Silent, or Disabled.
l Enabled-Silent — When the computer cover is removed with this setting, a DMI event is generated and the setting changes to Detected, but the alert
message does not appear during the boot sequence at the next system start-up.
l Disabled — No intrusion monitoring occurs and no messages appear.
Security Cable Slot and Padlock Ring
These features allow you to attach commercially available antitheft devices (see the following figure). To prevent unauthorized removal of your computer, loop
the galvanized security cable around an immovable object, insert the attached locking device into the security cable slot on the back of your computer, and
lock the device with the key provided.
Security Features on the Computer Chassis
NOTE: When the setup password is enabled, you must know the setup password before you can reset the Chassis Intrusion option.
NOTE: Before you purchase an antitheft device, make sure it works with the cable slot on your computer.
Password Protection
The computer provides the following types of password protection:
l System password
l Setup password
System Password
System passwords allow only those who know the password to have full use of the system. Your Dell system does not have the system password feature
enabled when you receive it.
System Password settings in system setup:
l Enabled — a system password is assigned
l Disabled — system password feature is disabled by a jumper setting on the system board
l Not Enabled — no system password is assigned and the password jumper on the system board is in the enabled position (its default setting)
Assigning a System Password
1. Verify that Password Status is set to Unlocked in system setup.
2. Highlight System Password and then press the left- or right-arrow key.
The option heading changes to Enter Password, followed by an empty 32-character field in square brackets.
3. Type your new system password.
You can use up to 32 characters.
As you press each character key (or the spacebar for a blank space), a placeholder appears in the field. The password assignment operation recognizes
keys by their location on the keyboard, without distinguishing between lowercase and uppercase characters. For example, if you have an M in your
password, the system recognizes either M or m as correct.
Certain key combinations are not valid. If you enter one of these combinations, the speaker emits a beep.
To erase a character when entering your password, press <Backspace> or the left-arrow key.
NOTICE: Although passwords provide security for the data on your system, they are not foolproof. If your data requires more security, it is your
responsibility to obtain and use additional forms of protection, such as data encryption programs.
NOTICE: If you leave your system running and unattended without having a system password assigned, or if you leave your computer unlocked so that
someone can disable the password by changing a jumper setting, anyone can access the data stored on your hard drive.
NOTE: You cannot change or enter a new system password if either of the following two options is displayed.
NOTE: You can only assign a system password when System Password is set to Not Enabled.
4. Press <Enter>.
If the new system password is less than 32 characters, the whole field fills with placeholders. Then the option heading changes to Verify Password,
followed by another empty 32-character field in square brackets.
5. To confirm your password, type it a second time and press <Enter>.
The password setting changes to Enabled. Your system password is now set; you can exit system setup and begin using your system. Password
protection takes effect when you reboot the system by pressing the reset button or by turning the system off and then on again.
Using Your System Password
When you turn on your system or press the reset button, or when you reboot the system by pressing the <Ctrl><Alt><Del> combination, the following prompt
appears on the screen when Password Status is set to Unlocked:
Type in the password and
- press <ENTER> to leave password security enabled.
- press <CTRL><ENTER> to disable password security.
Enter password:
If Password Status is set to Locked, the following prompt appears:
Type the password and press <Enter>.
If you enter a wrong or incomplete system password, the following message appears on the screen:
** Incorrect password. **
Enter password:
If you again enter an incorrect or incomplete system password, the same message appears on the screen. The third and subsequent times you enter an
incorrect or incomplete system password, the system displays the following message:
** Incorrect password. **
Number of unsuccessful password attempts: 3
System halted! Must power down.
Even after your system is turned off and on, the previous message is displayed each time an incorrect or incomplete system password is entered.
Deleting or Changing an Existing System Password
To delete or change an existing system password, perform the following steps:
1. Enter system setup, and verify that Password Status is set to Unlocked.
2. Reboot your system to force it to prompt you for a system password.
3. When prompted, type the system password.
4. Press <Ctrl><Enter> to disable the existing system password, instead of pressing <Enter> to continue with the normal operation of your system.
5. Confirm that Not Enabled is displayed for the System Password option.
If Not Enabled appears in the System Password option, the system password has been deleted. If you want to assign a new password, continue to
step 6. If Not Enabled is not displayed for the System Password option, press <Alt><B> to reboot the system, and then repeat steps 3 through 5.
6. To assign a new password, follow the procedure in "Assigning a System Password."
Setup Password
Setup passwords allow only those who know the password to have full use of system setup. Your Dell system does not have the setup password feature
enabled when you receive it.
Setup Password options in system setup:
l Enabled — does not allow assignment of setup passwords; users must enter a setup password to make changes to system setup
l Not Enabled — allows assignment of setup passwords; password feature is enabled but no password is assigned
Assigning a Setup Password
1. Enter system setup, and verify that Setup Password is set to Not Enabled.
2. Highlight Setup Password and press the left- or right-arrow key.
The system prompts you to enter and verify the password. If a character is illegal for password use, the system emits a beep.
NOTE: To escape from the field without assigning a system password, press <Tab> or the <Shift><Tab> combination to move to another field, or
press <Esc> at any time before completing step 5.
NOTE: If you have assigned a setup password, the system accepts your setup password as an alternate system password.
NOTE: You can use Password Status in conjunction with System Password and Setup Password to further protect your system from unauthorized
changes.
3. Type in and then verify the password.
After you verify the password, the Setup Password setting changes to Enabled. The next time you attempt to enter system setup, the system prompts
you for the setup password.
A change to Setup Password becomes effective immediately (rebooting the system is not required).
Operating Your System With a Setup Password Enabled
When you start system setup, the Setup Password option is highlighted, prompting you to type the password.
If you do not enter the correct password, the system lets you view, but not modify, system setup options.
Deleting or Changing an Existing Setup Password
To change an existing setup password, you must know the setup password.
1. Enter system setup.
2. If you have already assigned a setup password, type it at the prompt.
3. Highlight Setup Password and press the left- or right-arrow key to delete the existing setup password.
The setting changes to Not Enabled.
4. If you want to assign a new setup password, perform the steps in "Assigning a System Password."
Disabling a Forgotten Password
1. Turn off the computer and peripherals, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover.
2. Remove the jumper plug from the PSWD jumper to disable the password feature.
See "Jumper Settings" to locate the password jumper (labeled "PSWD") on the system board.
3. Replace the computer cover.
4. Reconnect your computer and peripherals to an electrical outlet, and then turn them on.
This erases the existing password(s).
5. Enter system setup and verify that the password is disabled. Proceed to step 6 if you want to assign a new password.
6. Remove the computer cover.
7. Replace the PSWD jumper plug.
8. Replace the computer cover and reconnect the computer and peripherals to an electrical outlet and turn them on.
Booting your system with the PSWD jumper installed reenables the password feature. When you enter system setup, both password options appear as
Not Enabled, meaning that the password feature is enabled but that no password is assigned.
9. Assign a new system and/or setup password.
Jumper Settings
The following figure shows the location of the jumpers on the system board.
System Board Jumpers
NOTE: The setup password can be the same as the system password.
NOTE: If the two passwords are different, the setup password can be used as an alternate system password. However, the system password cannot
be used in place of the setup password.
NOTE: You can use Password Status in conjunction with System Password and Setup Password to further protect your system from unauthorized
changes.
NOTICE: This process erases both the system and setup passwords.
CAUTION: Before you remove the computer cover, see "Safety First—For You and Your Computer."
NOTE: Before you assign a new system and/or setup password, you must replace the PSWD jumper plug to reenable the password feature.
CAUTION: Before you remove the computer cover, see "Safety First—For You and Your Computer."
To change a jumper setting, pull the plug off its pin(s) and carefully fit it down onto the pin(s) indicated
The following table lists the system board jumpers and their settings.
Installing and Configuring Software
When you obtain software, check it for viruses with virus-scanning software before installing it on your computer's hard drive. Viruses, which are pieces of
code that can replicate themselves, can quickly use all available system memory, damage or destroy data stored on the hard drive, and permanently affect the
performance of the programs they infect. Several commercial virus-scanning programs are available for purchase, and most bulletin board services (BBSs)
archive freely distributed virus-scanning programs that you can download with a modem.
Before you install a program, read its documentation to learn how the program works, what hardware it requires, and what its defaults are. A program usually
includes installation instructions in its accompanying documentation and a software installation routine on its program diskette(s) or CD(s).
The software installation routine assists you in transferring the appropriate program files to your computer's hard drive. Installation instructions may provide
details about how to configure your operating system to successfully run the program. Always read the installation instructions before running a program's
installation routine. You may be instructed to modify some operating system start-up files, such as config.sys and autoexec.bat, or the installation routine
may modify start-up files automatically.
When you run the installation routine, be prepared to respond to prompts for information about how your computer's operating system is configured, what
type of computer you have, and what peripherals are connected to your computer.
TAPI
Telephony Application Programming Interface (TAPI) enables Windows-based applications to operate with a wide variety of telephony devices, including voice,
data, fax, video, and so forth. TAPI applications require a TAPI service provider (TSP), which is a software driver that allows TAPI applications to communicate
with different types of TAPI hardware.
Microsoft®Windows®2000, Windows XP, and Windows NT®provide a TSP called Unimodem, which is a "universal" modem service provider that supports a
wide range of commonly used modems. For more information on Unimodem, see your Windows documentation. When using a TAPI device other than a
modem, such as a Private Branch Exchange (PBX) or a voice processing card, you will need a TSP provided by the manufacturer of the device.
The TAPI system board connector uses a 4-pin cable to interface your internal TAPI-compliant expansion card with the audio system in your computer. To
locate the TAPI system board connector, see "System Board Components." TAPI-compliant cards using the standard TAPI connector are supported. For
example, you can connect your modem to the TAPI connector and then use your audio speakers and microphone as a speakerphone. The microphone carries
your voice into the computer and then through the TAPI system board connector to your modem card. The caller's voice enters through the modem card to the
TAPI system board connector and then out to the speakers. You can also use this configuration to record and play sound files over the phone.
Installing a TAPI Device
1. Turn off the computer and peripherals, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover.
NOTICE: Make sure your system is turned off before you change a jumper setting. Otherwise, damage to your system or unpredictable results may
occur.
System-Board Jumper Settings
Jumper
Setting
Description
PSWD
(default)
Password features are enabled.
Password features are disabled.
RTCRST
Real-time clock reset. Can be used for troubleshooting purposes.
jumpered unjumpered
CAUTION: Before you perform this procedure, see "Safety First— For You and Your Computer."
2. Install the TAPI-compliant expansion card.
See the manufacturer's documentation for more information.
3. Rotate the power supply away from the system board.
4. Connect the 4-pin TAPI cable to the TAPI system board connector.
To locate the TAPI connector on the system board, see "System Board Components."
5. Connect the 4-pin TAPI cable to the TAPI expansion card connector.
To locate the TAPI connector on the expansion card, see the manufacturer's documentation.
6. Rotate the power supply back into position, making sure that the securing tab snaps into place.
7. Replace the computer cover.
8. Reconnect your computer and peripherals to an electrical outlet, and then turn them on.
9. Install the appropriate TSP for the TAPI device.
See the manufacturer's documentation and your Windows documentation for more information.
Installing a TAPI Sound Card
You can install a TAPI-compliant sound card that has a standard TAPI connector. For example, you can connect your modem to the TAPI sound card connector
and then use the audio capabilities as a speakerphone.
1. Turn off the computer and peripherals, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover.
2. Install the TAPI-compliant sound card.
See the manufacturer's documentation for more information.
3. Enter system setup, select Integrated Devices and change the setting for Sound to Off.
4. Connect external audio devices to the sound card's connectors. Do not connect external audio devices to the microphone, line-out, or line-in connectors
on the system back panel (see "Back-Panel Connectors and Indicators").
5. Connect the 4-pin TAPI cable to the TAPI sound card connector.
To locate the TAPI connector on the sound card, see the manufacturer's documentation.
6. Connect the 4-pin TAPI cable to the TAPI expansion card connector.
To locate the TAPI connector on the expansion card, see the manufacturer's documentation.
7. Replace the computer cover.
8. Reconnect your computer and peripherals to an electrical outlet, and then turn them on.
9. Install the appropriate TSP for the TAPI devices.
See the manufacturer's documentation and your Windows documentation for more information.
Power Management
Your computer can be set to use less power when you are not working. You control the power usage through the operating system (OS) installed on your
computer and certain option settings in system setup. These periods of reduced power are called "sleep states."
l Standby. In this sleep state, power to most components is reduced or turned off. However, system memory remains active.
This state is not supported by Windows NT 4.0.
l Hibernate. This sleep state reduces power consumption to a minimum by writing all data in system memory to a hard drive and then removing system
power. Waking up from this state restarts the computer, and the memory contents are restored. Operation then resumes where the system left off
when it entered the hibernation state.
This state is supported by Windows 2000 and Windows XP only.
l Shutdown. This sleep state removes all power from the system except a small auxiliary amount. As long as the computer remains connected to an
electrical outlet, it can be automatically or remotely started. For example, the Auto Power On feature allows the computer to automatically start at a time
you specify in system setup. Also, your network administrator can remotely start your computer using a power management event (PME) such as access
through a network connection (Wakeup On LAN).
The following table lists the sleep states available for each operating system as well as the methods you can use to "wake up" from each state.
CAUTION: Before you perform this procedure, see "Safety First— For You and Your Computer."
NOTE: All components installed in the computer must support this feature and have the appropriate drivers loaded to enter hibernation. For more
information, see the manufacturer's documentation for each component.
Back to Contents Page
Power Management
Sleep State
Wake-Up Methods
Windows 2000 and XP
Windows NT 4.0
Standby
l Press the power button
l Auto power on
l PME
l Move or click the PS/2 mouse
l Move or click the USB mouse
l Type on the PS/2 keyboard
l Type on the USB keyboard
l USB device activity
Not supported
Hibernate
l Press the power button
l Auto power on
l PME
Not supported
Shutdown
l Press the power button
l Auto power on
l PME
l Press the power button
l Auto power on
l PME
NOTE: For more information on power management, see your operating system documentation.
Back to Contents Page
Installing Upgrades
Dell™OptiPlex™GX400SystemUser'sGuide
Computer Cover
Power Supply
Front Panel
System Memory
Disk Drives and Media
AGP Card Brace
Expansion Cards
Microprocessor
VRM
System Battery
Computer Cover
Removing the Computer Cover
1. Turn off the computer and peripherals, and disconnect them from their electrical outlets.
2. If installed, remove the padlock from the padlock ring on the back panel.
3. Remove the computer cover.
Perform the following steps:
a. Face the back of the computer and slide the outer padlock ring to the left to unlock the cover release mechanism (see the following figure).
Chassis Cover Release Mechanism
b. Press the cover release button located at the bottom-left corner of the front panel (see the following figure).
c. Rotate the bottom of the cover outward, away from the chassis.
Removing the Chassis Cover
CAUTION: Before you perform this procedure, see "Safety First— For You and Your Computer."
d. Lift the cover away from the chassis.
e. Turn the computer on its right side before you begin working inside the chassis.
Replacing the Computer Cover
1. Check all cable connections and fold cables out of the way so that they do not catch on the computer cover. Ensure that cables are not routed over the
drive cage—they will prevent the cover from closing properly.
2. Ensure that no tools or extra parts (including screws) are left inside the computer chassis.
3. Replace the computer cover.
Perform the following steps:
a. Hold the cover at a slight angle as shown in the following figure. While aligning the top of the cover with the top of the chassis, insert the three
hooks on the cover into the three recessed slots on the computer chassis.
Replacing the Computer Cover
b. Rotate the cover downward toward the bottom of the chassis. With both hands, press against the bottom edge of the cover to ensure that the
securing hooks at the bottom of the cover click into place.
c. Slide the two parts of the padlock ring together to lock the cover release mechanism.
Power Supply
To access some of the components on the system board, you may need to rotate the system power supply out of the way.
1. Turn off the computer and peripherals, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover.
2. Make sure the AC power cable is disconnected from the AC power receptacle on the back of the power supply (see the following figure).
Rotating the Power Supply in a Chassis
3. Free the power supply from the securing tab by pressing the tab labeled "RELEASE." Then rotate the power supply upward until it locks in its extended
position.
When you have finished accessing components on the system board, rotate the power supply back to its original position until the release tab snaps into the
securing tab.
Front Panel
To remove the front panel, you first must remove the computer cover. With the cover removed, release the front panel by pressing the green front-panel
release button marked with the icon (see the following figure).
Removing the Front Panel
CAUTION: Before you perform this procedure, see "Safety First—For You and Your Computer."
CAUTION: Before you perform this procedure, see "Safety First— For You and Your Computer."
While pressing the front-panel release button, rotate the top of the panel outward, away from the chassis. Lift the panel away from the chassis.
To replace the front panel, fit the two front-panel retaining hooks into the recessed slots at the bottom of the chassis (see "Removing the Front Panel"). Then
rotate the top of the panel toward the chassis until the front-panel latches snap into the tabs on the front panel.
System Memory
Your computer supports Rambus dynamic random-access memory (RDRAM) Rambus in-line memory modules (RIMMs) in 64-, 128-, 256-, and 512-megabyte
(MB) capacities (see "Sample Memory Module Configurations"). "System Board Components" in "About Your Computer" shows the location of the four RIMM
sockets on the system board. Sockets that do not contain a RIMM must contain Rambus continuity RIMMs (CRIMMs).
RIMM Label Showing Number of Memory Devices
NOTICE: Before you install new memory modules, download the most recent BIOS for your computer from the Dell Support website at
support.dell.com.
NOTE: To reach the maximum 2-gigabyte (GB) memory total, you must install four 512-MB RIMMs that each have a maximum of 16 memory devices. The
system supports no more than a total of 64 memory devices on all installed RIMMs. See "RIMM Label Showing Number of Memory Devices" for the
location of the label on the RIMM that identifies the number of memory devices it contains. You can also determine the number of memory devices
installed through the System Memory option in system setup.
NOTE: The system does not support RIMMs with six memory devices.
NOTE: All four RIMM slots must be occupied either by a RIMM or a CRIMM and must be upgraded in matched pairs of identical capacity in slots 1 and 2 or
slots 3 and 4. Mixed RIMM pairs provide a capacity equal to the sum of the four RIMMs; mixed pairs of RIMMs that provide error checking and correction
(ECC) and non-ECC will all function as non-ECC.
NOTICE: Be sure to install a RIMM in socket 1 first (closest to the processor) before installing a RIMM in socket 2.
Sample Memory Module Configurations
Total Memory
Socket 1
Socket 2
Socket 3
Socket 4
128 MB
64 MB
64 MB
CRIMM
CRIMM
256 MB
64 MB
64 MB
64 MB
64 MB
256 MB
128 MB
128 MB
CRIMM
CRIMM
512 MB*
128 MB
128 MB
128 MB
128 MB
512 MB*
256 MB
256 MB
CRIMM
CRIMM
1024 MB
256 MB
256 MB
256 MB
256 MB
*512-MB RIMM technology will be supported when it is available.
Upgrading System Memory
1. Turn off the computer and peripherals, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover.
2. Rotate the power supply away from the system board.
3. If necessary, remove any modules (RIMMs or CRIMMs) that occupy sockets in which you plan to install the upgrade modules.
4. Install the upgrade RIMMs.
5. Rotate the power supply back into position, making sure that the securing tab snaps into place.
6. Replace the computer cover, reconnect the computer and peripherals to their electrical outlets, and turn them on.
ALERT! Cover was previously removed.
The system detects that the new memory does not match the existing system configuration information and generates the following message:
The amount of system memory has changed.
Strike the F1 key to continue, F2 to run the setup utility
7. Enter system setup, and check the value for System Memory. The system should have already changed the value of System Memory to reflect the
newly installed memory. If the new total is correct, skip to step 9.
8. If the memory total is incorrect, repeat step 1 and step 2. Check the installed modules to ensure that they are seated properly in their sockets. Then
repeat step 5 through step 7.
9. When the System Memory total is correct, exit system setup.
10. Run the Dell Diagnostics to verify that the memory modules are operating properly.
Removing a Memory Module
1. Press the securing clips at each end of the socket outward simultaneously until the module pops out slightly from the socket (see the following figure).
Removing a Memory Module
2. Lift the module away from the socket.
CAUTION: Before you perform this procedure, see "Safety First— For You and Your Computer."
CAUTION: RIMMs can get very hot during system operation. Be sure that the RIMMs have had sufficient time to cool before you touch them.
NOTE: The system supports no more than a total of 64 memory devices on all installed RIMMs. See "RIMM Label Showing Number of Memory
Devices" for the location of the label on the RIMM that identifies the number of memory devices it contains. You can also determine the number of
memory devices installed through the System Memory option in system setup.
NOTE: If enabled, the Chassis Intrusion option will cause the following message to be displayed at the next system start-up:
NOTE: If you remove a module (RIMM or CRIMM), you must install another module in the empty socket before turning on the computer.
Installing a Memory Module
1. Press the securing clips at each end of the socket outward until they snap open (see the following figure).
Installing a Memory Module
2. Align the slots on the bottom of the module with the two ridges inside the socket.
3. Press the module straight down into the socket until the securing clips snap into place at the ends of the module.
Disk Drives and Media
Installing a CD, ZIP, or Other Externally Accessible Drive
in the Chassis
1. Turn off the computer and peripherals, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover.
2. Rotate the power supply away from the system board.
3. Remove the front panel.
4. Remove the drive bracket from the chassis drive bay you want to use.
Squeeze together the metal tabs that extend from each side of the drive bracket, and pull the bracket out of the bay (see the following figure).
Removing the Drive Bracket
If a drive is already installed in the bay and you are replacing it, disconnect the DC power cable and interface cable from the back of the drive before
removing the bracket from the bay. To remove the old drive from the bracket, turn the drive/bracket assembly upside down and remove the four screws
that secure the drive to the bracket (see "Attaching the Drive Bracket to the New Drive").
5. Unpack the drive and prepare it for installation.
See the documentation that accompanied the drive to verify that the drive is configured for your computer. Change any settings necessary for your
CAUTION: Before you perform this procedure, see "Safety First— For You and Your Computer."
NOTICE: Ground yourself by touching an unpainted metal surface on the back of the computer.
configuration.
6. Attach the new drive to the drive bracket.
Turn the drive upside down, and fit the bracket on the drive so that the screw holes align. To ensure proper installation, all screw holes should be
aligned and the tabs on the front of the bracket should be flush with the front of the drive (see the following figure).
Attaching the Drive Bracket to the New Drive
To further ensure proper positioning of the drive in the chassis, insert and tighten all four screws in the order in which the holes are numbered (the holes
are marked "1" through "4").
7. Slide the new drive/bracket assembly into the drive bay until both drive bracket tabs snap securely into place (see the following figure).
Installing the Drive Bracket in the Chassis
8. Connect the interface cable for the drive (see "Attaching Drive Cables in the Chassis").
a. If you are installing an enhanced integrated drive electronics (EIDE) device, make sure that the interface cable is properly connected to the EIDE
connector on the system board. For more information, see "EIDE Device Installation Guidelines."
b. If you are installing a small computer system interface (SCSI) device, make sure that the SCSI interface cable is properly connected to the
interface connector on the SCSI controller board. For more information, see "SCSI Device Installation Guidelines."
9. Connect a DC power cable to the power input connector on the back of the drive (see the following figure).
NOTICE: To avoid possible damage, you must match the colored strip on the interface cable with pin 1 on both the drive and system board connectors.
Attaching Drive Cables in the Chassis
10. Ensure that all cables are firmly connected. Fold cables out of the way to provide airflow for the fan and cooling vents.
11. If the chassis drive bay was previously empty, remove the corresponding insert from the front panel.
Hold the front panel with the outside facing you. Press the ends of the insert with your thumbs until the insert snaps free of the front panel.
12. Replace the front panel.
13. Replace the computer cover, reconnect the computer and peripherals to their electrical outlets, and turn them on.
ALERT! Cover was previously removed.
14. If the drive you installed is a hard drive, enter system setup, and update the drive settings.
After you update the system settings, exit system setup and reboot the computer.
15. If the device you installed is a hard drive, partition and logically format the drive before proceeding to the next step.
See the operating system's documentation for instructions.
16. Test the drive to verify that it is operating properly.
l If the drive you installed is a hard drive, run the Dell Diagnostics to test the drive.
l For other types of drives, see the drive's documentation for information on testing the drive.
17. If the drive you installed is the primary hard drive, install the operating system on the drive.
See the operating system's documentation for instructions.
Installing a Hard Drive in the Chassis
1. Turn off the computer and peripherals, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover.
2. Rotate the power supply away from the system board.
3. Remove the front panel.
4. Remove the drive bracket from the chassis.
Pull the drive door forward and down until the hard-drive bracket is ejected halfway out of the chassis (see the following figure). Then grasp the bracket
NOTE: If enabled, the Chassis Intrusion option will cause the following message to be displayed at the next system start-up:
NOTE: Tape drives sold by Dell come with their own operating software and documentation. After you install a tape drive, refer to the
documentation that came with the drive for instructions on installing and using the tape drive software.
NOTE: If you are replacing a hard drive that contains data you want to keep, be sure to back up your files before you begin this procedure.
CAUTION: Before you perform this procedure, see "Safety First— For You and Your Computer."
and lift it up off the bracket hooks and away from the chassis.
Removing the Hard Drive Bracket From the Chassis
If a drive is already installed in the bracket, disconnect the DC power cable and interface cable from the back of the drive before removing the bracket
from the chassis. To remove the old drive from the bracket, remove the four screws that secure the drive in the bracket (see "Installing a Hard Drive in
the Bracket").
5. Unpack the drive and prepare it for installation.
See the documentation that accompanied the drive to verify that the drive is configured for your computer. Change any settings necessary for your
configuration.
6. Slide the drive into one of the bracket bays, oriented so the connectors on the back of the drive will face the interior of the chassis when the bracket is
reinstalled (see "Installing a Hard Drive in the Bracket").
7. Align the screw holes of the drive and bracket, and secure the drive in the bracket using the screws that came with the upgrade kit (see the following
figure).
Installing a Hard Drive in the Bracket
8. Reinstall the hard drive bracket in the chassis (see "Installing the Hard- Drive Bracket in the Chassis").
Insert the drive bracket into the chassis, sliding it in until the tabs snap into place. Rotate the drive door upward to the chassis until it snaps securely
into place.
NOTICE: Ground yourself by touching an unpainted metal surface on the back of the computer.
NOTE: Orient the drive in the bracket so that its bottom will face the left side of the chassis when the bracket is installed in the chassis.
NOTE: When you rotate the drive door back into place, ensure that the tabs on the drive door are inserted between the drive bracket and the
drive cage.
NOTE: Be sure to fold down the drive door handle so that the front panel can be replaced on the chassis.
Installing the Hard-Drive Bracket in the Chassis
9. Connect the interface cable for the drive (see "Attaching Hard Drive Cables in the Chassis").
a. If you are installing an EIDE device, ensure that the IDE interface cable is properly connected to the EIDE connector on the system board. For
more information, see "EIDE Device Installation Guidelines."
b. If you are installing a SCSI device, ensure that the SCSI interface cable is properly connected to the interface connector on the SCSI controller
board. For more information, see "SCSI Device Installation Guidelines."
10. Connect a DC power cable to the power input connector on the back of the drive (see the following figure).
Attaching Hard Drive Cables in the Chassis
11. Ensure that all cables are firmly connected. Fold cables out of the way to provide airflow for the fan and cooling vents.
12. Ensure that the control panel cable is firmly connected to the system board.
The control panel contains the hard-drive activity indicator. To locate the control panel system board connector, see "System Board Components."
13. Replace the front panel.
14. Replace the computer cover, reconnect the computer and peripherals to their electrical outlets, and turn them on.
ALERT! Cover was previously removed.
NOTICE: To avoid possible damage, you must match the colored strip on the interface cable with pin 1 on both the drive and system board connectors.
NOTE: If enabled, the Chassis Intrusion option will cause the following message to be displayed at the next system start-up:
15. Enter system setup, and update the drive settings.
After you update the system settings, exit system setup and reboot the computer.
16. Partition and logically format the drive before proceeding to the next step.
See the operating system's documentation for instructions.
17. Run the Dell Diagnostics to test the drive.
18. If the hard drive you installed is the primary drive, install the operating system on the drive.
See the operating system's documentation for instructions.
EIDE Device Installation Guidelines
Jumper Settings
All EIDE drives should be configured for the Cable Select jumper position, which assigns master and slave status to drives by their position on the interface
cable. When two EIDE drives are connected to a single EIDE interface cable and are configured for the Cable Select jumper position, the drive attached to the
last connector on the interface cable is the master, or boot device (drive 0), and the device attached to the middle connector on the interface cable is the slave
device (drive 1). Refer to the documentation in your drive upgrade kit for information on setting devices to the Cable Select jumper position.
General Guidelines
With the two EIDE interface connectors on the input/output (I/O) board, your system can support up to four EIDE drives:
l The primary EIDE connector, labeled "IDE PRI," should be cabled to EIDE hard drives
l The secondary EIDE connector, labeled "IDE SEC," should be cabled to EIDE CD, DVD, tape, SuperDisk, and Zip drives
To locate the EIDE interface connectors on the system board, see "System Board Components." Each EIDE interface connector on the I/O board supports the
following:
l Two channels, master and slave
l Logical block addressing (LBA)
l Programmed I/O (PIO) Mode 3 and Mode 4
l Ultra Advanced Technology Attachment (ATA)/100, ATA/66, or ATA/33
EIDE Cables
Ultra ATA/66 and ATA/100 hard drives require an 80-conductor cable to transfer data at full speed. The 80-conductor cable has a 40-pin connector like the
ATA/33 cable, but it has twice as many wires within the cable. If you use an ATA/33 cable with Ultra ATA/100 hard drives, the drives will operate properly, but
data will transfer at ATA/33 speeds.
SCSI Device Installation Guidelines
This section describes how to configure and install SCSI devices in your system. To install a SCSI device, you must have a SCSI controller card installed in your
system.
SCSI ID Numbers
Internal SCSI devices must have a unique SCSI ID number from 0 to 15.
When SCSI devices are shipped from Dell, the default SCSI ID numbers for the primary and secondary controllers are assigned as follows:
l SCSI controller: SCSI ID 7
l Boot SCSI hard drive: SCSI ID 0
l SCSI CD drive: SCSI ID 5
l SCSI tape or digital audio tape (DAT) drive: SCSI ID 6
SCSI devices installed by Dell are configured correctly during the manufacturing process. You do not need to set the SCSI ID for these SCSI devices.
If you attach additional optional SCSI devices, refer to the documentation for each device for information about setting the appropriate SCSI ID number.
Device Termination
NOTE: A SuperDisk drive is typically installed as the master device on the secondary EIDE system-board connector.
NOTICE: DellrecommendsthatyouuseonlyEIDEcablespurchasedfromDell.CablespurchasedelsewherearenotguaranteedtoworkwithDell™
systems.
NOTE: There is no requirement that SCSI ID numbers be assigned sequentially or that devices be attached to the cable in order by ID number.
NOTICE: Dell recommends that you use only SCSI cables purchased from Dell. Cables purchased elsewhere are not guaranteed to work with Dell
systems.
SCSI logic requires that termination be enabled for the two devices at opposite ends of the SCSI chain and disabled for all devices in between.
Dell recommends that you use terminated cables and that you disable termination on all devices. See the documentation provided with any optional SCSI
device you purchase for information on disabling termination on the device.
General Guidelines
Follow these general guidelines when installing SCSI devices in your computer:
l Although you install SCSI devices essentially the same way as other devices, their configuration requirements are different. For details on configuring
your particular SCSI subsystem, refer to the documentation for your SCSI devices and/or your host adapter card.
l Configure the device for a SCSI ID number and disable termination, if necessary.
l If you are installing an external SCSI device, connect one end of the external SCSI cable to the bus connector on the back of the device. Attach the
other end of the external SCSI cable to the connector on the controller installed in the computer.
l After installing a SCSI hard drive, Primary Drive 0 and Primary Drive 1 should be set to None in system setup. If you have any EIDE devices on the
second EIDE channel, such as a CD or tape drive, Secondary Drive 0 and/or Secondary Drive 1 should be set to Auto. If you have any SCSI devices on
the second EIDE channel, Secondary Drive 0 and/or Secondary Drive 1 should be set to None.
l You may need to use programs other than those provided with the operating system to partition and format SCSI hard drives. Refer to the
documentation that came with your SCSI software drivers for information on installing the appropriate drivers and preparing your SCSI hard drive for
use.
SCSI Cables
Ultra2/Wide low-voltage differential (LVD) drives (typically hard drives) use a 68-pin cable. One end of this cable attaches to the SCSI controller card. The
remaining connectors on the cable attach to the various LVD drives.
Narrow SCSI drives (tape drives, CD drives, and some hard drives) use a 50-pin cable. One end of this cable attaches to the SCSI controller card. The
remaining connectors on the cable attach to the various Narrow SCSI devices.
AGP Card Brace
To access some components on the system board in the chassis, you may need to remove the accelerated graphics port (AGP) card brace.
1. Turn off the computer and peripherals, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover.
2. Lay the computer on its right side.
3. Remove the screw that secures the AGP card brace to the chassis (see the following figure).
Removing the AGP Card Brace
4. Rotate the brace up until it disengages from the card guide at the front of the chassis. Then lift the brace away from the chassis.
To replace the AGP card brace, perform the following steps:
1. Insert the tab on one end of the brace into the slot on the card guide at the front of the chassis (see the preceding figure).
2. Lower the brace, ensuring that the AGP retention lever on the bottom of the brace is aligned with the top of the AGP card.
3. Replace the screw that secures the brace to the chassis.
Expansion Cards
NOTICE: Dell recommends that you use only SCSI cables purchased from Dell. Cables purchased elsewhere are not guaranteed to work with Dell
systems.
CAUTION: Before you perform this procedure, see "Safety First— For You and Your Computer."
The system provides expansion slots for the following cards:
l Up to five 32-bit, 33-megahertz (MHz) Peripheral Component Interconnect (PCI) expansion cards.
l One 32-bit AGP card. The expansion slot supports AGP 4x or 2x modes operating at 1.5-volts (V).
See "Expansion Cards" for examples of these cards.
Expansion Cards
Installing an Expansion Card
1. Turn off the computer and peripherals, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover.
2. Lay the computer on its right side.
3. Prepare the expansion card for installation.
See the documentation that came with the expansion card for information on configuring the card, making internal connections, or otherwise customizing
it for your system.
4. If you are installing an AGP card, remove the AGP card brace.
5. Remove the screw that secures the expansion slot filler bracket to the chassis, and remove the bracket from the chassis (see the following figure).
Save the screw to use when installing the expansion card later in this procedure.
Removing the Filler Bracket
NOTE: To meet PC99 system requirements, your Dell computer uses only PCI expansion slots. Industry-Standard Architecture (ISA) expansion cards are
not supported. This is an industry standard for ease-of-use.
NOTICE: Before disconnecting a peripheral 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."
CAUTION: Before you perform this procedure, see "Safety First— For You and Your Computer."
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