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Dell™Dimension™4400
Technical Overview
Controls and Lights
Solving Problems
System Codes and Messages
Technical Specifications
System Setup Program
Adding Parts
Documentation
Hints, Notices, and Cautions
Abbreviations and Acronyms
For a complete list of abbreviations and acronyms, see the Tell Me How help file.
Information in this document is subject to change without notice.
©2002DellComputerCorporation.Allrightsreserved.
Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden.
Trademarks used in this text: Dell, the DELL logo, and Dimension are trademarks of Dell Computer Corporation; Intel and Pentium are registered trademarks of Intel Corporation;
Microsoft and Windows are registered trademarks of Microsoft Corporation; Adobe is a trademark of Adobe Systems Incorporated.
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.
This product incorporates copyright protection technology that is protected by method claims of certain U.S. patents and other intellectual property rights owned by Macrovision
Corporation and other rights owners. Use of this copyright protection technology must be authorized by Macrovision Corporation, and is intended for home and other limited
viewing uses only unless otherwise authorized by Macrovision Corporation. Reverse engineering or disassembly is prohibited.
May 2002 Rev. A04
HINT: A HINT 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.
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System Codes and Messages
Dell™Dimension™4400
Diagnostic Codes
POST Beep Codes
System Messages
Diagnostic Codes
Your computer is equipped with four diagnostic lights, which are labeled "A," "B," "C," and "D" on the back of the computer. Each of the four lights can be
yellow, green, or off as shown in the following table. When the computer is turned on or restarted and it is functioning normally, the lights flash during POST.
After the computer starts, the lights remain green to signify normal computer operation.
If a malfunction is detected and the computer fails to start, the lights display a code that identifies the problem. Write down the diagnostic code displayed and
look it up in the following table.
Diagnostic Code
Definition
Corrective Action
Power up default.
Make sure that the computer is connected to a known working electrical outlet, and then check
whether the front-panel power light on the power button is on or off. If the power light is off, check
the power supply. If the problem persists, see "Contacting Dell" in the Owner's Manual for instructions
on obtaining technical assistance.
See "Safety Instructions," and then remove all cards.Ifthecomputerstilldoesnotstart,see
"Contacting Dell" in the Owner's Manual for instructions on obtaining technical assistance.
System board is receiving
power, but the BIOS is not
executing.
Set the configuration jumper to Maintenance mode, and restart the computer. Exit and save changes
in the system setup program. Turn off the computer and reset the configuration jumper to Normal
mode, and then restart the computer.
See "Safety Instructions," and then remove all cards and restart the computer to determine if a
resource conflict exists. If conflict exists, see "Resolving Software and Hardware Incompatibilities." If
the problem persists, see "Contacting Dell" in the Owner's Manual for instructions on obtaining
technical assistance.
Recovery mode from BIOS
failure.
Set the configuration jumper to Maintenance mode and restart the computer. Exit and save changes in
the system setup program. Turn off the computer and reset the configuration jumper to Normal mode,
and then restart the computer.
See "Safety Instructions," and then remove all cards and restart the computer to determine if a
resourceconflictexists.Ifconflictexists,see"Resolving Software and Hardware Incompatibilities." If
the problem persists, see "Contacting Dell" in the Owner's Manual for instructions on obtaining
technical assistance.
Microprocessor has failed a
BIOS test.
If the problem persists, see "Contacting Dell" in the Owner's Manual for instructions on obtaining
technical assistance.
Memory failed to be sized or
enabled.
Reseat the memory modules.Iftheproblempersists,see"ContactingDell"intheOwner's Manual for
instructions on obtaining technical assistance.
PCI bus failure has occurred.
See "Safety Instructions," and then remove all cards and restart the computer to determine if a
resource conflict exists. If conflict exists, see "Resolving Software and Hardware Incompatibilities." If
the problem still persists, see "Contacting Dell" in the Owner's Manual for instructions on obtaining
technical assistance.
Video controller failed to
initialize or respond.
If the computer has a video card, reseat the video card. If the problem persists or the computer has
integrated video, see "Contacting Dell" in the Owner's Manual for instructions on obtaining technical
assistance.
IDE bus failure has occurred.
Reseat the drive cables. If the problem persists, see "Contacting Dell" in the Owner's Manual for
instructions on obtaining technical assistance.
USB port or a device
connected to it has failed
initialization.
Disconnect the device from the USB connector. If the problem persists, see "Contacting Dell" in the
Owner's Manual for instructions on obtaining technical assistance.
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POST Beep Codes
If the monitor cannot display errors or problems, during POST the computer might emit a series of beeps, or beep code, that identifies the problem. The POST
beep codes are listed below.
System Messages
Other failure.
See "Contacting Dell" in the Owner's Manual for instructions on obtaining technical assistance.
Computer has started and
turned over control to the
operating system.
No action is necessary.
Beep
Codes
Possible Cause
Corrective Action
1
A memory refresh failure occurred.
Reseat the memory modules.
2
Memory parity cannot be reset.
Reseat the memory modules.
3
A failure occurred in the first 64 KB of memory.
Reseat the memory modules.
4
The system timer is not operational.
See "Contacting Dell" in the Owner's Manual for instructions on obtaining technical
assistance.
6
8042 Gate A20 cannot be toggled.
See "Contacting Dell" in the Owner's Manual for instructions on obtaining technical
assistance.
7
An exception interrupt error occurred.
See "Contacting Dell" in the Owner's Manual for instructions on obtaining technical
assistance.
8
A read/write error occurred in the display
memory.
See "Contacting Dell" in the Owner's Manual for instructions on obtaining technical
assistance.
10
A CMOS shutdown register test error occurred.
See "Contacting Dell" in the Owner's Manual for instructions on obtaining technical
assistance.
11
An invalid BIOS is installed.
See "Contacting Dell" in the Owner's Manual for instructions on obtaining technical
assistance.
Message
Possible Cause
Corrective Action
8042 Gate-A20 error
The keyboard controller failed its test.
If you receive this message after making changes in the system setup
program, enter the program and restore the original value(s).
Address Line Short!
Error in the address decoding circuitry in the
memory.
Reseat the memory modules.
C: Drive Error
C: Drive Failure
The hard drive is not working or is not configured
correctly.
Ensure that the drive is installed correctly in the computer and defined
correctly in the system setup program.
Cache Memory Bad, Do
Not Enable Cache
Cache memory is not operating.
See "Contacting Dell" in the Owner's Manual for instructions on obtaining
technical assistance.
CH-2 Timer Error
An error is occurring on the timer on the system
board.
See "Contacting Dell" in the Owner's Manual for instructions on obtaining
technical assistance.
CMOS Battery State
Low
CMOS Checksum Failure
CMOS System Options
Not Set
CMOS Display Type
Mismatch
CMOS Memory Size
Mismatch
The system configuration information in the system
setup program is incorrect, or the battery charge
may be low.
Enter the system setup program and verify the system configuration; then
restart the computer.
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CMOS Time and Date
Not Set
Diskette Boot Failure
Drive A or B is present but has failed the BIOS POST.
Ensure that the drive is installed correctly in the computer and defined
correctly in the system setup program. Check the interface cable at both
ends.
DMA Error
DMA 1 Error
DMA 2 Error
Error in the DMA controller on the system board.
The keyboard or system board may need to be replaced.
FDD Controller
Failure
HDD Controller
Failure
BIOS cannot communicate with the floppy drive or
hard-drive controller.
Ensure that the floppy drive or the hard drive is installed correctly in the
computer and defined correctly in the system setup program. Check the
interface cable at both ends.
INTR1 Error
INTR2 Error
Interrupt channel on the system board failed the
POST.
The keyboard or system board may need to be replaced.
Invalid Boot Diskette
The operating system cannot be located on drive A
or drive C.
Enter the system setup program and confirm that drive A or drive C is
properly identified.
Keyboard Error
The BIOS has detected a stuck key.
Make sure that nothing is resting on the keyboard; if a key appears to be
stuck, carefully pry it up. If the problem persists, you may need to replace
the keyboard.
KB/Interface Error
An error occurred with the keyboard connector.
Make sure that nothing is resting on the keyboard; if a key appears to be
stuck, carefully pry it up. If the problem persists, you may need to replace
the keyboard.
No ROM Basic
The operating system cannot be located on drive A
or drive C.
Enter the system setup program and confirm that drive A or drive C is
properly identified.
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Documentation
Dell™Dimension™4400
Printed Documentation
Online Documentation
Printed Documentation
To save PDF files (files with an extension of .pdf) to your hard drive, right-click the document title, click Save Target As in Microsoft®Internet Explorer or Save
Link As in Netscape Navigator, and specify a location on your hard drive.
Right-click only the following links:
Dell Dimension 4400 Systems Owner's Manual (.pdf) (1899 KB) — Provides information on adding upgrades, performing basic troubleshooting procedures,
and reinstalling drivers. It also provides technical specifications.
Online Documentation
The Tell Me How help file is already loaded on your hard drive when you receive your computer. See "Accessing Help Files" for instructions on how to open the
file.
The Tell Me How help file allows you to search for information in multiple ways. You can quickly link to information on the following topics:
l Hardware and software features of your computer
l The Windows®desktop, where you can change your wallpaper and screen saver, create shortcuts, and position icons
l Software access, installation, and removal
l Basic file management, such as finding, copying, deleting, and renaming files
l Tips on using your computer hardware
Downloading the Tell Me How Help File and Associated Files
1. Right-click the following link to the hhactivex.dll file: hhactivex.dll.
2. Click Save Target As in Microsoft Internet Explorer or Save Link As in Netscape Navigator, and specify c:\windows\system.
3. Click the Start button on the Microsoft Windows desktop, and then click Run.
4. Type regsvr32 hhactivex.dll and then press <Enter>.
5. Click OK when the installation is complete.
6. Right-click the following link to the file: Dell Dimension 4400 System Tell Me How (.chm) (1224 KB).
7. Click Save Target As in Microsoft Internet Explorer or Save Link As in Netscape Navigator, and specify a location on your hard drive.
Viewing the Tell Me How Help File
1. Click the Start button on the Windows desktop, point to Programs, and then click Windows Explorer.
2. Navigate to the directory in which you saved the Tell Me How help file.
3. Double-click the file (tellhow.chm).
Back to Contents Page
HINT: You must right-click the link for a portable document format (PDF) file and save the file to your hard drive. Attempting to open large PDF files
through your browser causes your system to freeze.
HINT: PDFfilesrequireAdobe™AcrobatReader,whichcanbedownloadedfromtheAdobeWorldWideWebsiteathttp://www.adobe.com/acrobat/.
To view a PDF file, launch Acrobat Reader. Click File—> Open and select the PDF file.
HINT: Tell Me How help files (files with an extension of .chm) require Microsoft Internet Explorer 4.0 or later.
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Adding Parts
Dell™Dimension™4400
Safety Instructions
Use the following safety guidelines to protect yourself and your computer. For comfort and efficiency, observe the ergonomic guidelines provided in "Ergonomic
Computing Habits" in the Dell Owner's Manual.
When Using Your Computer
l To help avoid damaging your computer, be sure that the voltage selection switch is set to match the AC power available at your location:
¡ 115 V/60 Hz in most of North and South America and some Far Eastern countries such as South Korea and Taiwan
¡ 100 V/50 Hz in eastern Japan and 100 V/60 Hz in western Japan
¡ 230 V/50 Hz in most of Europe, the Middle East, and the Far East
Also be sure that your monitor and attached devices are electrically rated to operate with the AC power available in your location.
l To help prevent damage to your computer when disconnecting a network cable from your computer, first unplug the cable from the computer network
connector and then from the network wall jack. When reconnecting a network cable to your computer, first plug the network cable into the network wall
jack and then into the computer network connector.
l To help avoid possible damage to the system board, wait 5 seconds after turning off the computer before disconnecting or connecting a non-USB device.
l To help prevent electric shock, plug the computer and device power cables into properly grounded power sources. These cables are equipped with 3-
prong plugs to help ensure proper grounding. Do not use adapter plugs or remove the grounding prong from a cable. If you must use an extension
cable, use a 3-wire cable with properly grounded plugs.
l To help protect your computer from sudden, transient increases and decreases in electrical power, use a surge suppressor, line conditioner, or
uninterruptable power supply.
l Be sure that nothing rests on your computer cables and that the cables are not located where they can be stepped on or tripped over.
l Do not spill food or liquids on your computer. If the computer gets wet, contact Dell.
l Do not push any objects into the openings of your computer. Doing so can cause fire or electric shock by shorting out interior components.
l Keep your computer away from radiators and heat sources. Also, do not block cooling vents. Avoid placing loose papers underneath your computer; do
not place your computer in a closed-in wall unit or on a bed, sofa, or rug.
When Working Inside Your Computer
Before you remove the computer cover, perform the following steps in the sequence indicated.
1. Turn off your computer and all devices.
Safety Instructions
Shutting Down the Computer
Reattaching the Front Door and Hinge Arms
Opening the Computer Cover
Adding Cards
Removing Cards
Adding Memory
Replacing an AGP Card
Adding a Second Hard Drive
Adding Other Drives
Replacing the Microprocessor
Removing the Front I/O Panel
Replacing the Power Supply
Replacing the System Board
Closing the Computer Cover
CAUTION: Do not operate your computer with any cover(s) (including the computer cover, filler brackets, front-panel inserts, and so on)
removed.
NOTE: The voltage selection switch must be set to the 115V position even though the AC supply in Japan is 100 V.
NOTICE: Do not attempt to service the computer yourself, except as explained in this guide and elsewhere in Dell documentation. Always follow
installation and service instructions closely.
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2. Ground yourself by touching an unpainted metal surface at the back of the computer before touching anything inside your computer.
While you work, periodically touch an unpainted metal surface on the computer to dissipate any static electricity that might harm internal components.
3. Disconnect any devices connected to the computer, including the monitor, from their electrical outlets to reduce the potential for personal injury or
shock. Also, disconnect any telephone or telecommunication lines from the computer.
4. Disconnect the power cable from your computer, and then press the power button to ground the system board.
In addition, take note of these safety guidelines when appropriate:
l When you disconnect a cable, pull on its connector, not on the cable itself. As you pull connectors apart, keep them evenly aligned to avoid bending any
pins. Also, before you connect a cable, make sure that both connectors are correctly oriented and aligned.
l Handle components and cards with care. Don't touch the components on a card. Hold a card by its edges or by its metal bracket.
Protecting Against Electrostatic Discharge
To prevent static damage, discharge static electricity from your body before you touch anything inside your computer and periodically while you work inside the
computer. You can do so by touching an unpainted metal surface on the back of the computer.
You can also take the following steps to prevent static damage:
l Do not remove items from their antistatic packing material until you are ready to install them in your computer. Just before unwrapping the antistatic
packaging, be sure to discharge static electricity from your body.
l When transporting a sensitive component, first place it in an antistatic container or packaging.
Shutting Down the Computer
Windows XP
1. Save and close any open files and exit any open programs.
2. Click the Start button and then click Turn off Computer.
3. Click Turn off.
The computer automatically turns off after the shutdown process finishes.
Windows 2000
1. Save and exit any programs and files you have open.
2. Click the Start button, and then click Shut Down.
3. Click the pull-down menu under What do you want the computer to do?.
4. Click Shut down and then click OK.
The computer automatically turns off after the shutdown process finishes.
5. Turn off your monitor and any other devices connected to power.
Reattaching the Front Door and Hinge Arms
To prevent damage to your computer, the front door is designed to "break away" if it is lifted up too far. If the front door breaks away, you might need to
reattach both the front door and the hinge arms.
Reattaching the Front Door
1. Shut down the computer.
2. Lower the hinge arms to the vertical position.
3. Align the two clips on the inside of the front door with the two hinge arms.
4. Press inward on the front door until it clips to both hinge arms.
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 instructions.
NOTICE: To prevent data loss, you must turn off your computer through the Start menu rather than by pressing the power button.
HINT: If you are having difficulty turning off your computer, see "General Program Problems."
NOTICE: Turn off your monitor and any other devices connected to power.
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Reattaching the Hinge Arms
1. Shut down the computer.
2. Disconnect the power cable from your computer.
3. Remove the front door, if it is attached.
The front door snaps off of the two hinge arms.
4. Remove the front-panel insert above the front-door bay area.
Pull the bottom of the insert with your fingers to remove it.
5. Lift both hinge arms to the horizontal position.
6. Use the two view slots to align the pivot bar with the two pivot-bar slots.
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7. Pull the arms toward you until they snap into place.
If the hinge arms don't snap back into place on the first attempt, slightly reposition the arms and try again.
8. After the hinge arms clip into place, lower and raise the arms two or three times to properly seat them.
9. Reattach the front-panel insert.
10. Reconnect the power cable to your computer.
11. Reattach the front door as described in "Reattaching the Front Door."
Opening the Computer Cover
1. Shut down the computer.
2. Turn off any attached devices and disconnect them from their electrical outlets.
3. Disconnect the computer power cable from the wall outlet, and then press the power button to ground the system board.
4. Lay the computer on its side so that the arrow on the bottom of the computer points up.
5. Locate the two release buttons shown in the illustration.Then, press the two release buttons as you lift the cover.
NOTICE: Using excessive force to pull the hinge arms into place may damage the arms or the front panel.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in "Safety Instructions."
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
NOTICE: Ensure that there is sufficient space to support the open cover—at least 30 cm (1 ft) of desk top space.
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Adding Cards
1. Shut down the computer.
2. Turn off any attached devices and disconnect them from their electrical outlets.
3. Disconnect the power cable from your computer, and then press the power button to ground the system board.
4. Open the computer cover.
5. To raise the securing lever, press the tab until it is free from the latch and then lift the lever.
6. Insert the card into the connector.
7. Ensure that the card is fully seated in the connector.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in "Safety Instructions."
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
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8. Lower the plastic securing lever.
9. Connect any cables that should be attached to the card.
See the documentation that came with the card for information about the card cable connections.
10. Close the computer cover.
11. Connect your computer and devices to their electrical outlets, and turn them on.
12. Install any drivers required for the card as described in the documentation that came with the card.
Removing Cards
1. Shut down the computer.
2. Turn off any attached devices and disconnect them from their electrical outlets.
3. Disconnect the power cable from your computer, and then press the power button to ground the system board.
4. Open the computer cover.
5. If necessary, disconnect any cables connected to the card.
6. To raise the securing lever, press the tab until it is free from the latch and then lift the lever.
7. To remove the card, grasp the card by the top corners and lift it out.
If the card is difficult to remove, gently ease the card back and forth to remove it from the connector.
NOTICE: To connect a network cable, first plug the cable in to the network wall jack and then plug it in to the computer.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in "Safety Instructions."
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
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8. If you are not replacing the card, install a filler bracket in the empty card-slot opening.
If you are adding a card, see "Adding Cards."
9. Lower the securing lever.
10. Close the computer cover.
11. Connect your computer and devices to their electrical outlets, and turn them on.
Adding Memory
You can increase your computer memory by installing memory modules on the system board. For information on the type of memory supported by your
computer, see "Memory" in "Technical Specifications."
1. Shut down the computer.
2. Turn off any attached devices and disconnect them from their electrical outlets.
3. Disconnect the computer power cable from the wall outlet, and then press the power button to ground the system board.
4. Open the computer cover.
5. Remove the AGP card.
6. If necessary, remove a memory module:
a. Press out the securing clip at each end of the memory module connector.
b. Grasp the module and pull up.
If the module is difficult to remove, gently ease the module back and forth to remove it from the connector.
7. To insert a module, press out the securing clip at each end of the memory module connector.
HINT: Installing filler brackets over empty card- slot openings is necessary to maintain Federal Communications Commission (FCC) certification of the
computer. The brackets also keep dust and dirt out of your computer.
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in "Safety Instructions."
HINT: Memory purchased from Dell is covered under your computer warranty.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
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8. Align the notches on the bottom of the module with the crossbars in the connector.
9. Insert the module straight down into the connector, ensuring that it fits into the vertical guides at each end of the connector. Press firmly on the ends
of the module until it snaps into place.
During most installations, the securing clips snap into the cutouts at each end of the module. During some installations, you have to use your fingers to
gently push the clips into the cutouts.
10. Reinstall the AGP card.
11. Close the computer cover.
12. Connect your computer and devices to their electrical outlets, and turn them on.
13. Right-click the My Computer icon and then click Properties.
14. Click the General tab.
15. To verify that the memory is installed correctly, check the amount of memory (RAM) listed.
Replacing an AGP Card
1. Shut down the computer.
2. Turn off any attached devices and disconnect them from their electrical outlets.
3. Disconnect the computer power cable from the wall outlet, and then press the power button to ground the system board.
4. Open the computer cover.
5. Press the card clip lever on the side of the AGP card to release the card from the slot connector, and remove the card.
NOTICE: To avoid breaking the memory module, do not press near the middle of the module.
NOTICE: Visually inspect the position of the securing clips and make sure that they have snapped into the vertical position in the cutouts on the ends of
the memory modules. Otherwise, the securing clips may prevent the AGP card from being properly reinstalled.
NOTICE: To connect a network cable, first plug the cable in to the network wall jack and then plug it in to the computer.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in "Safety Instructions."
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
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6. To replace the AGP card, gently press it down into the slot connector until it clicks into place. Press the card clip lever while inserting the card into the
slot connector.
7. Close the computer cover.
8. Connect your computer and devices to their electrical outlets, and turn them on.
Adding a Second Hard Drive
Your computer includes one hard drive. To add a second hard drive:
1. Shut down the computer.
2. Turn off any attached devices and disconnect them from their electrical outlets.
3. Disconnect the computer power cable from the wall outlet, and then press the power button to ground the system board.
4. Unpack the drive and prepare it for installation.
See the drive documentation to ensure that the drive is set up for your computer.
5. Open the computer cover.
6. Remove the two green plastic rails from the inside of the hard-drive bay.
These rails are not attached to the inside of the hard-drive bay with screws. To remove the rails, gently pull the rails up and out of the bay.
7. Attach the rails to the hard drive using the two screws attached to the rails.
Ensure that the rail tabs are positioned at the back of the hard drive.
8. Remove the first hard drive from the upper bay and install it in the lower bay.
a. Disconnect the power cable and the data cable from the back of the first hard drive.
b. Press in the two green rail tabs and pull the first hard drive out of the upper bay.
NOTICE: Visually inspect the position of the securing clips on the memory connectors and make sure that they are secured in the vertical position in the
cutouts on the ends of the memory modules. Otherwise, the securing clips may prevent the AGP card from being properly reinstalled.
NOTICE: To connect a network cable, first plug the cable in to the network wall jack and then plug it in to the computer.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in "Safety Instructions."
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
HINT: Two sets of rails are attached to the inside of the computer cover. Use the two longer rails on 5.25-inch drives. Use the shorter rails for 3.5-inch
drives. Rails for a second hard drive are attached inside the hard-drive bay.
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c. Gently slide the first hard drive into the lower bay until you hear a click.
d. Reconnect the power cable and the data cable to the back of the first hard drive.
9. Gently slide the new hard drive into the upper bay until you hear a click.
10. Locate the extra connector on the drive cable that is attached to your first hard drive, and attach the connector to the second hard drive.
11. Close the computer cover.
12. Connect your computer and devices to their electrical outlets, and turn them on.
13. See the documentation that came with the drive for instructions on installing any software required for drive operation.
Adding Other Drives
NOTICE: Do not install any drive into the lower hard-drive bay until after you have removed the green drive rails from the inside of the hard-drive cage.
NOTICE: Match the colored strip on the cable with pin 1 on the drive.
HINT: Your computer uses cable-select drive cables. This means that the device connected to the end connector of the drive cable is the master device
and the device connected to the middle connector is the slave device. Be sure the jumper setting on the new device is set for "cable select" (see the
documentation that came with the drive for information).
NOTICE: To connect a network cable, first plug the cable in to the network wall jack and then plug it into the computer.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in "Safety Instructions."
HINT: Drives sold by Dell come with their own operating software and documentation. After you install a drive, refer to the documentation that came
with the drive for instructions on installing and using the drive software.
NOTICE: To avoid possibly damaging the drive by electrostatic discharge (ESD), ground yourself by periodically touching an unpainted metal surface on
the back of the computer.
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Your computer includes a floppy drive and a CD or DVD drive. You can add other devices, such as a Zip drive, a CD-RW drive, or a tape drive.
5.25-Inch Devices
1. Shut down the computer.
2. Turn off any attached devices and disconnect them from their electrical outlets.
3. Disconnect the power cable from your computer, and then press the power button to ground the system board.
4. Unpack the drive and prepare it for installation.
See the documentation that came with the drive to ensure that the drive is set up for your computer.
5. Remove the two longer, green plastic rails from the inside of the computer cover.
To remove the rails, gently ease the rails up and out.
6. Attach the rails to the drive using the screws supplied with the drive.
Ensure that the rail tabs are positioned at the back of the drive.
7. Open the computer cover.
8. To remove the drive-bay cover panel, carefully press the panel out from the inside of the computer.
9. Gently slide the drive into the bay until you hear a click.
10. Connect a power cable to the drive.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in "Safety Instructions."
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
HINT: Two sets of rails are attached to the inside of the computer cover. Use the two longer rails on 5.25-inch drives. Use the shorter rails on 3.5-inch
drives. Rails for a second hard drive are attached inside the hard-drive bay.
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See the documentation that came with the drive for instructions on connecting a drive cable to the drive and system board.
11. Connect your computer and devices to their electrical outlets, and turn them on.
See the documentation that came with the drive for instructions on installing any software required for drive operation.
3.5-Inch Devices
1. Shut down the computer.
2. Turn off any attached devices and disconnect them from their electrical outlets.
3. Disconnect the power cable from your computer, and then press the power button to ground the system board.
4. Unpack the drive and prepare it for installation.
See the documentation that came with the drive to ensure that the drive is set up for your computer.
5. Open the computer cover.
6. To remove the drive-bay cover panel, carefully press the panel out from the inside of the computer.
7. To remove the drive-bay cover panel insert, press the four securing tabs and pull the insert away from the panel.
8. Remove the two shorter, green plastic rails from the inside of the computer cover.
These rails are not attached to the computer cover with screws. To remove the rails, firmly pull the rails from the drive cage.
HINT: Your computer uses cable-select drive cables. This means that the device connected to the end connector of the drive cable is the master device
and the device connected to the middle connector is the slave device. Be sure the jumper setting on the new device is set for "cable select" (see the
documentation that came with the drive for information).
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in "Safety Instructions."
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
HINT: Two sets of rails are attached to the inside of the computer cover. Use the two longer rails on 5.25-inch drives. Use the shorter rails for 3.5-inch
drives. Rails for a second hard drive are attached inside the hard-drive cage.
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9. Attach the rails to the drive using the screws supplied with the drive.
Ensure that the rail tabs are positioned at the back of the drive.
10. Gently slide the drive into the bay until you hear a click.
11. Carefully replace the drive bay cover.
You do not need to replace the cover insert.
12. Connect a power cable to the drive.
See the documentation that came with the drive for instructions on connecting a drive cable to the drive.
13. Connect your computer and devices to their electrical outlets, and turn them on.
14. Install any drivers required for the drive as described in the documentation that came with the drive.
Replacing the Microprocessor
1. Shut down the computer.
2. Turn off any attached devices and disconnect them from their electrical outlets.
3. Disconnect the power cable from your computer, and then press the power button to ground the system board.
4. Open the computer cover.
5. Disconnect the cooling fan power cable from the CR3F1 connector on the system board.
HINT: Your computer uses cable-select drive cables. This means that the device connected to the end connector of the drive cable is the master device
and the device connected to the middle connector is the slave device. Be sure the jumper setting on the new device is set for "cable select" (see the
documentation that came with the drive for information).
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in "Safety Instructions."
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
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6. Disconnect the +12-VDC P2 DC power cable from the J4B1 connector on the system board.
7. Lift up the airflow shroud.
8. For each of the metal securing clips that secure the heat sink to the microprocessor, press down on the clip's latch to release the clip from the retention
base. Then lift each clip out of the tabs on the retention base and away from the heat sink.
9. Lift the heat sink away from the microprocessor.
10. Pull the socket lever up straight up until the microprocessor is released.
The microprocessor uses a ZIF socket with a lever-type handle that secures or releases the microprocessor.
NOTICE: Gently rock the heat sink and then lift it to remove it.
NOTICE: Do not discard the original heat sink and securing clips unless you are installing a microprocessor upgrade kit from Dell. If you are not installing
a microprocessor upgrade kit from Dell, reuse the original heat sink, blower, and securing clips when installing your new microprocessor.
NOTICE: Be careful not to bend any of the pins when you remove the microprocessor package from the ZIF socket. Bending the package pins can
permanently damage the microprocessor.
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11. Remove the microprocessor from the socket.
Leave the release lever extended in the release position so that the socket is ready for the new microprocessor.
Installing the Microprocessor
1. If the release lever on the ZIF socket is not extended to the release position, move it to that position.
2. Align pin-1 (the beveled corner) of the microprocessor package and pin-1 of the socket.
3. Carefully set the microprocessor in the socket and press it down lightly to seat it.
4. Rotate the lever back toward the system board until it snaps into place, securing the microprocessor package.
5. If you are installing a new heat sink, remove the film covering the bottom of the heat sink.
6. Lower the heat sink to the microprocessor so that the heat sink fits in the retention base.
7. For each of the replacement metal clips, fit the end of the clip that does not have the latch over its tab on the retention base. Then, fit the middle of the
clip over the middle tab on the retention base, and press down on the clip's latch to secure the clip to the retention base.
8. Lower the airflow shroud over the heat sink.
9. Reconnect the cooling fan power cable to the CR3F1 connector on the system board.
10. Plug the +12-VDC P2 DC power cable into the J4B1 connector on the system board.
11. Close the computer cover.
12. Connect your computer and devices to their electrical outlets, and turn them on.
If you are installing a microprocessor replacement kit from Dell, return the original heat sink assembly and microprocessor package to Dell in the same package
in which your replacement kit was sent. Your microprocessor replacement kit should include a replacement microprocessor heat sink and one replacement
securing clip.
NOTICE: You must position the microprocessor package correctly in the socket to avoid permanent damage to the microprocessor and the computer.
NOTICE: The microprocessor pins are delicate. To avoid damage, ensure that the microprocessor aligns properly with the socket, and do not use
excessive force when installing the processor.
NOTICE: To connect a network cable, first plug the cable in to the network wall jack and then plug it in to the computer.
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Removing the Front I/O Panel
1. Shut down the computer.
2. Turn off any attached devices and disconnect them from their electrical outlets.
3. Disconnect the power cable from your computer, and then press the power button to ground the system board.
4. Open the computer cover.
5. Disconnect the control panel cable from the control panel connector. Disconnect the I/O cable from the connector on the system board.
Note the routing of the control panel cable as you remove it from the computer so that you can replace it correctly.
6. Remove all cables that are connected to the front I/O panel.
7. From inside the computer cover, remove the mounting screw that secures the front I/O panel to the computer.
8. Remove the front I/O panel from the computer.
9. Reinstall the front I/O panel by reversing steps 5 through 7.
10. Close the computer cover.
11. Connect your computer and devices to their electrical outlets, and turn them on.
Replacing the Power Supply
Removing the Power Supply
1. Shut down the computer.
2. Turn off any attached devices and disconnect them from their electrical outlets.
3. Disconnect the power cable from your computer, and then press the power button to ground the system board.
4. Open the computer cover.
5. Be sure the AC power cable is disconnected from the back of the power supply. Then disconnect the DC power cables from the system board and the
drives.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in "Safety Instructions."
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in "Safety Instructions."
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
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Note the routing of the DC power cables underneath the tabs in the computer frame as you remove them from the system board and drives. It is
important to route these cables properly when you replace them to prevent them from being pinched or crimped.
6. Remove the two screws that secure the power supply to the back of the computer.
7. Press the "PUSH" button located on the floor of the computer frame.
8. Slide the power supply toward the front of the system approximately 1 inch.
9. Lift the power supply up and out of the computer.
Replacing the Power Supply
1. Slide the power supply into place.
2. Replace the two screws that secure the power supply to the back of the computer frame.
3. Reconnect the DC power cables.
4. Close the computer cover.
5. Connect your computer and devices to their electrical outlets, and turn them on.
Replacing the System Board
Removing the System Board
1. Shut down the computer.
2. Turn off any attached devices and disconnect them from their electrical outlets.
3. Disconnect the power cable from your computer, and then press the power button to ground the system board.
4. Open the computer cover.
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
CAUTION: Before you begin any of the procedures in this section, see "Safety Instructions."
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
Page 23
5. Remove or move any components that restrict access to the system board.
6. Disconnect all cables from the system board.
Before you remove the existing system board, visually compare the replacement system board to the existing system board to make sure that you have
the correct part.
7. Pull up on the tab and slide the system board toward the front of the computer; lift it up and away.
8. Place the system board that you just removed next to the replacement system board.
Replacing the System Board
1. Transfer components from the existing system board to the replacement system board:
a. Remove the memory modules and install them on the replacement board.
b. Remove the fan/heat sink assembly and microprocessor package from the existing system board and transfer them to the replacement system
board.
2. Configure the settings of the replacement system board. Set the jumper on the replacement system board so it is identical to the one on the existing
board.
3. Orient the replacement board by aligning the notches on the bottom to the tabs on the computer frame floor.
4. Slide the board toward the back of the computer until it clicks into place.
5. Replace any components and cables that you removed from the system board.
6. Reconnect all cables to their connectors at the back of the computer, close the computer cover, and reconnect the computer and devices to their power
sources and turn them on.
Closing the Computer Cover
1. Ensure that all cables are connected, and fold cables out of the way.
2. Ensure that no tools or extra parts are left inside the computer.
3. Pivot the cover down and ensure that the release buttons click into place.
4. Connect your computer and devices to their electrical outlets, and turn them on.
Back to Contents Page
NOTICE: The system board and the metal tray are attached and are removed as one piece.
CAUTION: The microprocessor package and heat sink assembly can get hot. To avoid burns, be sure that the package and assembly have had
sufficient time to cool before you touch them.
NOTICE: Some components and connectors on the replacement system board may be in different locations than the corresponding connectors on the
existing system board.
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
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Page 25
Back to Contents Page
Solving Problems
Dell™Dimension™4400
Accessing Help Files
Power Problems
Start-Up Error Messages
Accessing Help Files
Power Problems
Start-Up Error Messages
Video and Monitor Problems
Sound and Speaker Problems
Printer Problems
Scanner Problems
Modem Problems
Mouse Problems
Keyboard Problems
Drive Problems
Network Problems
Microsoft®Windows®Error Messages
General Program Problems
Internet Connection Problems
E-Mail Problems
Resolving Other Technical Problems
Reinstalling Drivers
Resolving Software and Hardware Incompatibilities
Using System Restore
Reinstalling Windows XP
Reinstalling Windows 2000
To access the Tell Me How help file
Microsoft®Windows®XP
1. Click the Start button, and then click Help and Support.
2. Click User and system guides, and then click User's guides.
3. Click Tell Me How.
Windows 2000
Click the Start button, point to Programs, point to User's Guides, and then click Tell Me How.
To access help in Windows XP
1. Click the Start button, and then click Help and Support.
2. Type a word or phrase that describes your problem, and then click the arrow icon.
3. Click the topic that describes your problem.
4. Follow the instructions shown on the screen.
To access help in Windows 2000
1. Click the Start button, and then click Help.
2. Click the Search tab.
3. Type a word or phrase that describes your problem, and then click List Topics.
4. Click the topic that describes your problem, and then click Display.
5. Follow the instructions shown on the screen.
HINT: See the Tell Me How help file for information on the standby mode.
Check the power light— When the power light is solid green, the computer has power. If the power light is blinking green, the computer is
in standby mode—press a key on the keyboard or move the mouse. If the power light is off, the computer is either not turned on or is not
receiving electrical power. If the power light is solid amber, the computer is receiving electrical power, but an internal power problem may
exist—call Dell for technical assistance. See "Contacting Dell" in the Dell Owner's Manual for the correct number to call.
Test the electrical outlet— Ensure that the electrical outlet is working by testing it with another device, such as a lamp.
Check the power cable connection— Be sure that the power cable is firmly inserted into the electrical outlet and the computer power
connector.
Connect the computer directly to an electrical outlet— Bypass power protection devices, power strips, and the extension cable to verify
that the computer turns on.
Swap the computer and monitor power cables— Swap the computer and monitor power cables to determine if the power cable is defective.
Check for interference— Electrical appliances on the same circuit or operating near the computer can cause interference. Other causes of
interference: power extension cables, keyboard and mouse extension cables, too many devices on a power strip, or multiple power strips
connected to the same electrical outlet.
Check the Power Properties— See the Tell Me How help file or search for the keyword standby in the Help and Support Center (Help in
Windows 2000). To access help files, see "Accessing Help Files."
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Video and Monitor Problems
If the screen is blank
If the screen is difficult to read
Sound and Speaker Problems
Operating system not found— Call Dell for technical assistance. See "Contacting Dell" in the Dell Owner's Manual for the correct number to
call.
Insert bootable media— The operating system is trying to boot to a nonbootable floppy disk or CD. Insert a bootable floppy disk or CD.
Non-system disk error— A floppy disk is in the floppy drive. Remove the floppy disk and restart the computer.
HINT: See the documentation that came with your monitor for fault indications and troubleshooting procedures specific to your monitor.
Check the video cable connection— Check for bent pins (most video cable connectors have missing pins, but not bent pins). Ensure that the
video cable is connected as shown on the START HERE sheet for your computer.
Press the monitor power button— Be sure that you firmly pressed the monitor power button.
Check the power light— When the power light is lit or blinking, the monitor has power. If the power light is blinking, press a key on the
keyboard or move the mouse.
Test the electrical outlet— Ensure that the electrical outlet is working by testing it with another device, such as a lamp.
Swap the computer and monitor power cables— Swap the computer and monitor power cables to determine if the power cable is defective.
Test the video extension cable (if used)— If you are using a video extension cable and removing the cable solves the problem, the cable is
defective.
Test the monitor— If another monitor is available, connect it to the computer.
Check the back panel lights— If all four lights below the serial connector are not green, call Dell for technical assistance. See "Contacting
Dell" in the Dell Owner's Manual for the correct number to call.
Check the Power Properties— See the Tell Me How help file or search for the keyword standby in the Help and Support Center (Help in
Windows 2000). To access help files, see "Accessing Help Files."
Adjust the contrast and brightness— See the documentation that came with your monitor for instructions on adjusting the contrast and
brightness.
Move the subwoofer away from the monitor— If your speaker system includes a subwoofer, ensure that the subwoofer is at least 2 ft
(60cm)awayfromthemonitor.
Move the monitor away from external power sources— Fans, fluorescent lights, halogen lamps, and other electrical devices can cause the
screen image to appear "shaky." Turn off nearby devices to check for interference.
Rotate the monitor to face a different direction— Eliminate sunlight glare, which can cause poor picture quality.
Degauss (demagnetize) the monitor— See the documentation that came with your monitor.
Run the monitor self-test— See the documentation that came with your monitor.
Restore the recommended settings— Restore the original resolution and refresh rate settings. See the Tell Me How help file for instructions.
Check for additional adjustments— See the documentation that came with your monitor for any additional adjustments that your monitor
may require.
Adjust the Windows display settings
Windows XP
1. Click the Start button, and then click Control Panel.
2. Click Appearance and Themes.
3. Click Display, and then click the Settings tab.
4. Try different settings for Screen resolution and Color quality.
Windows 2000
1. Click the Start button, point to Settings, and then click Control Panel.
2. Double-click the Display icon, and then click the Settings tab.
3. Try different settings for Colors and Screen area.
Check for interrupt request conflicts— See "Resolving Software and Hardware Incompatibilities."
HINT: The volume control in some MP3 players overrides the Windows volume setting. If you have been listening to MP3 songs, make sure that you did
not turn the player volume down or off.
Ensure that the subwoofer and the speakers are turned on— See the setup diagram supplied with the speakers.
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Printer Problems
If you cannot print to a parallel port printer
If you cannot print to a USB printer
Adjust the speaker controls— Adjust the volume, bass, or treble controls to eliminate distortion.
Verify the speaker cable connections— Ensure that the speakers are connected as shown on the START HERE sheet for your computer and
the setup diagram supplied with the speakers.
Be sure that headphones are not connected to the front-panel headphone connector— Sound from the speakers is automatically disabled
when headphones are connected to the computer's front-panel headphone connector.
Adjust the Windows volume control— In Windows XP, click the speaker icon in the lower-right corner of your screen. In Windows 2000,
double-click the speaker icon in the lower-right corner of your screen. Be sure that the volume is turned up and that the sound is not muted.
Run the speaker diagnostics— Some speaker systems have self-contained diagnostics. See the speaker documentation for diagnostics
instructions.
Eliminate possible interference— Turn off nearby fans, fluorescent lights, or halogen lamps to check for interference.
Test the electrical outlet— Ensure that the electrical outlet is working by testing it with another device, such as a lamp.
Reinstall the Sound (audio) driver— See "Reinstalling Drivers. "
Check for interrupt request conflicts— See "Resolving Software and Hardware Incompatibilities."
HINT: If you need technical assistance for your printer, call the printer's manufacturer (see the documentation that came with the printer for the correct
phone number). Dell does not cover the printer's warranty.
Verify the printer cable connections— Ensure that the printer cable is connected as described in "Connecting a Printer" in the Dell Owner's
Manual.
Ensure that the printer is turned on— See the documentation supplied with the printer.
Verify that the printer is recognized by Windows
Windows XP
1. Click the Start button.
2. Click Control Panel.
3. Click Printers and Other Hardware.
4. Click View installed printers or fax printers. If the printer is listed, right-click the printer icon.
5. Click Properties, and then select the Ports tab. Ensure that the Print to the following port(s): setting is LPT1 (Printer Port).
Windows 2000
1. Click the Start button, point to Settings, and then click Printers.
If the printer is listed, right-click the printer icon.
2. Click Properties, and then select the Ports tab. Ensure that the Print to the following port(s): setting is LPT1 (Printer Port).
Test the electrical outlet— Ensure that the electrical outlet is working by testing it with another device, such as a lamp.
Reinstall the printer driver— See "Installing the Printer Driver" in the Dell Owner's Manual.
Check for interrupt request conflicts— See "Resolving Software and Hardware Incompatibilities."
Verify the printer cable connections— Ensure that the printer cable is connected as described in "Connecting a Printer" in the Dell Owner's
Manual.
Ensure that the printer is turned on— See the documentation supplied with the printer.
Verify that the printer is recognized by Windows
Windows XP
1. Click the Start button.
2. Click Control Panel.
3. Click Printers and Other Hardware.
4. Click View installed printers or fax printers. If the printer is listed, right-click the printer name.
5. Click Properties, and then select the Ports tab. Ensure that the Print to the following port(s): setting is USB.
Windows 2000
1. Click the Start button, point to Settings, and then click Printers.
If the printer is listed, right-click the printer icon.
2. Click Properties, and then select the Ports tab. Ensure that the Print to the following port(s): setting is USB.
Test the electrical outlet— Ensure that the electrical outlet is working by testing it with another device, such as a lamp.
Page 28
Scanner Problems
Modem Problems
Mouse Problems
Reinstall the printer driver— See "Installing the Printer Driver" in the Dell Owner's Manual.
Check for interrupt request conflicts— See "Resolving Software and Hardware Incompatibilities."
HINT: If you need technical assistance for your scanner, call the scanner's manufacturer (see the documentation that came with the scanner for the
correct phone number). Dell does not cover the scanner's warranty.
Check the power cable connection— Ensure that the scanner power cable is firmly connected to a working electrical power source and that
the scanner is turned on.
Check the scanner cable connection— Ensure that the scanner cable is firmly connected to the computer and to the scanner.
Unlock the scanner— Ensure that your scanner is unlocked if it has a locking tab or button.
Reinstall the scanner driver— Reinstall the scanner driver. See the scanner documentation for instructions.
Check for interrupt request conflicts— See "Resolving Software and Hardware Incompatibilities."
HINT: Connect the modem to an analog telephone jack only. The modem does not operate while it is connected to a digital telephone network.
Check the connection— Verify that the telephone line is connected to the green jack on the modem. (The green line-in jack has either a LINE
IN label or a connector-shaped icon next to it.) Make sure you hear a click when you insert the telephone line connector.
Check the telephone jack— Disconnect the telephone line from the modem and connect it to a telephone. Listen for a dial tone.
Connect the modem directly to the telephone wall jack— If you have other telephone devices sharing the line, such as an answering
machine, fax machine, surge protector, or line splitter, then bypass them and connect the modem directly to the telephone wall jack with the
telephone line.
Check the telephone line— Try using a different telephone line. If you are using a line that is 10 ft (3 m) or more in length, try a shorter one.
Verify that the modem is communicating with Windows
Windows XP
1. Click the Start button, and then click Control Panel.
2. Click Printers and Other Hardware.
3. Click Phone and Modem Options.
4. Click the Modems tab.
5. Click the COM port for your modem.
6. Click Properties, click the Diagnostics tab, and then click Query Modem to verify that the modem is communicating with Windows.
If all commands receive responses, the modem is operating properly.
Windows 2000
1. Click the Start button, point to Settings, and click Control Panel.
2. In the Control Panel, double-click Phone and Modem Options.
If there are multiple entries for the same modem or modems listed that are not installed, delete the entries and restart the computer.
3. Click the Modems tab.
4. Click the COM port for your modem.
5. Click the Properties button.
6. Click the Diagnostics tab to verify that the modem is communicating with Windows.
If all commands receive responses, the modem is operating properly.
Be sure that you have subscribed to an Internet service provider— Contact an Internet service provider to subscribe.
Check for interrupt request conflicts— See "Resolving Software and Hardware Incompatibilities."
If you connected the mouse before turning on the computer, reconnect the mouse cable
1. Press <Ctrl><Esc> to display the Start menu.
2. In Windows XP, type u, press the keyboard arrow keys to highlight Shut down or Turn Off, and then press <Enter>. In Windows
2000, press the keyboard arrow keys to highlight Shut Down, and then press <Enter>.
3. After the computer turns off, reconnect the mouse cable as shown on the START HERE sheet for your computer.
4. Start the computer.
If you connected the mouse after turning on the computer, remove the power cable, and then reconnect the mouse cable— If the mouse
is connected after the power is turned on, the mouse will appear to be nonfunctional. To make the mouse function properly:
1. While your computer is on, remove the power cable from the back of the computer.
Page 29
Keyboard Problems
Drive Problems
If you cannot save a file to a floppy disk
If you cannot play a music CD or install a program from a CD
2. Connect the mouse to the computer.
3. Reconnect the power cable.
4. Turn on your computer.
Pressing the power button does not clear the computer's settings and does not restore mouse functionality.
Check the mouse settings
Windows XP
1. Click the Start button, click Control Panel, and then click Printers and Other Hardware.
2. Click Mouse.
3. Try adjusting the settings.
Windows 2000
1. Click the Start button, point to Settings, and then click Control Panel.
2. Double-click the Mouse icon.
3. Try adjusting the settings.
Check for interrupt request conflicts— See "Resolving Software and Hardware Incompatibilities."
Reconnect the keyboard cable— Shut down the computer (see "Turning Off the Computer" in the Dell Owner's Manual), reconnect the
keyboard cable as shown on the START HERE sheet for your computer, and then restart the computer.
Check for interrupt request conflicts— See "Resolving Software and Hardware Incompatibilities."
HINT: See "Accessing Help Files" for information on saving files to a floppy disk.
Ensure that Windows recognizes the drive— In Windows XP, click the Start button, and then click My Computer. In Windows 2000, double-
click the My Computer icon on the Windows desktop. If the floppy drive is not listed, perform a full scan with your antivirus software to check
for and remove viruses. Viruses can sometimes prevent Windows from recognizing the drive.
Test the drive with another floppy disk— Insert another floppy disk to eliminate the possibility that the original floppy disk is defective.
Cannot save files to a floppy disk— Ensure that the floppy disk is not full or write-protected (locked). See the following illustration.
HINT: High-speed CD drive vibration is normal and may cause noise. This does not indicate a defect in the drive or the CD.
Ensure that Windows recognizes the drive— In Windows XP, click the Start button, and then click My Computer. In Windows 2000, double-
click the My Computer icon on the Windows desktop. If the CD drive is not listed, perform a full scan with your antivirus software to check for
and remove viruses. Viruses can sometimes prevent Windows from recognizing the drive.
Test the drive with another CD— Insert another CD to eliminate the possibility that the original CD is defective.
Clean the disc— See the Tell Me How help file for instructions.
Adjust the Windows volume control— In Windows XP, click the speaker icon in the lower-right corner of your screen. In Windows 2000,
double-click the speaker icon in the lower-right corner of your screen. Be sure that the volume is turned up and that the sound is not muted.
If headphones are connected to the front-panel headphone connector, check for sound from the headphones— Sound from the speakers
is automatically disabled when headphones are connected to the computer's front-panel headphone connector.
Page 30
If you cannot play a DVD movie
If the CD-RW drive stops writing
If you have a hard drive problem
Network Problems
Microsoft®Windows®Error Messages
Check the speakers and subwoofer— See "Sound and Speaker Problems."
HINT: Because of different worldwide file types, not all DVD titles work in all DVD drives.
Ensure that Windows recognizes the drive— In Windows XP, click the Start button, and then click My Computer. In Windows 2000, double-
click the My Computer icon on the Windows desktop. If the DVD drive is not listed, perform a full scan with your antivirus software to check
for and remove viruses. Viruses can sometimes prevent Windows from recognizing the drive.
Test the drive with another DVD— Insert another DVD to eliminate the possibility that the original DVD is defective.
Clean the disc— See the Tell Me How help file for instructions.
HINT: If you disable standby mode to write to a CD-RW drive, remember to reenable standby mode when you finish writing to the CD.
Turn off Standby in Windows before writing to a CD-RW disc— See the Tell Me How help file or search for the keyword standby in the Help
and Support Center (Help in Windows 2000). To access help files, see "Accessing Help Files."
Change the write speed to a slower rate— The CD-RW drive must receive a steady stream of data when writing. If the stream is
interrupted, an error occurs. Closing all programs before writing to the CD-RW may also alleviate the problem.
Run ScanDisk
1. In Windows XP click the Start button, and then click My Computer. In Windows 2000 double-click the My Computer icon on the
Windows desktop.
2. Right-click the drive letter (local disk) that you want to scan for errors, and then click Properties.
3. Click the Tools tab.
4. Under Error-checking, click Check Now.
5. Click Start.
Check for interrupt request conflicts— See "Resolving Software and Hardware Incompatibilities."
Check the network cable connector— Ensure that the network cable connector is firmly connected to the connector on the computer and
the network wall jack as shown on the START HERE sheet for your computer.
Check the network lights on the back of the computer— A green light indicates a 10 Mbps network connection, and an orange light
indicates a 100 Mbps network connection. The light blinks amber when there is any network traffic. If the light is dark, try replacing the
network cable.
Restart the computer— Try to log on to the network again.
Contact your network administrator— Verify that your network settings are correct and that the network is functioning.
Check for interrupt request conflicts— See "Resolving Software and Hardware Incompatibilities."
x
:\ is not accessible. The device is not ready— Insert a disk into the drive and try again.
A filename cannot contain any of the following characters: \ / : * ? " < > |— Do not use these characters in filenames.
Not enough memory or resources. Close some programs and try again— You have too many programs open. Close all windows and open
the program that you want to use. In some cases, you might have to restart your computer to restore computer resources. If so, try running
the program that you want to use first.
The file being copied is too large for the destination drive— The file that you are trying to copy is too large to fit on the disk. Try copying
the file to a blank disk or use a larger capacity disk.
A required .DLL file was not found— The program that you are trying to open is missing an essential file. To remove and then reinstall the
program:
Windows XP
1. Click the Start button.
2. Click Control Panel.
3. Click Add or Remove Programs.
4. Select the program you want to remove.
5. Click the Change or Remove Program icon.
Page 31
General Program Problems
A program crashes
A program stops responding
A program error causes the system to lock up
A solid blue screen appears
A program is designed for an earlier Windows operating system
Internet Connection Problems
If you have a problem with your Internet connection
6. See the program documentation for installation instructions.
Windows 2000
1. Click the Start button, point to Settings, and then click Control Panel.
2. Double-click the Add/Remove Programs icon.
3. Select the program that you want to remove.
4. Click Change/Remove and follow the prompts on the screen.
5. See the program documentation for installation instructions.
See the software documentation— Many software manufacturers maintain websites with information that may help you to solve the
problem.
End the program
1. Simultaneously press <Ctrl><Shift><Esc>.
2. In Windows XP and Windows 2000, click the Task Manager button, click the Applications tab, and then select the program that is no
longer responding.
3. Click the End Task button.
HINT: ScanDisk may run when you restart the computer. Follow the instructions on the screen.
Turn the computer off— If your computer locks up and you are unable to get a response by pressing a key on your keyboard or moving your
mouse, press the power button for at least 8 to 10 seconds until the computer turns off. Then press the power button again to turn on the
computer. You might lose data if you are unable to perform a Microsoft Windows shutdown.
HINT: ScanDisk may run when you restart the computer. Follow the instructions on the screen.
Turn the computer off— If your computer locks up and you are unable to get a response by pressing a key on your keyboard or moving your
mouse, press the power button for at least 8 to 10 seconds until the computer turns off. Then press the power button again to turn on the
computer. The solid blue screen appears because you were not able to perform a proper Windows shutdown. You might lose data if you are
unable to perform a Microsoft Windows shutdown.
Run the Program Compatibility Wizard Windows XP provides a Program Compatibility Wizard that configures a program to run in an
environment more similar to older Windows operating system environments.
1. Click the Start button, point to All Programs—> Accessories, and then click Program Compatibility Wizard.
2. On the welcome screen, click Next.
3. Follow the instructions on the screen.
Review "Modem Problems."
Turn off call waiting (catch-phone)— See your telephone directory for instructions on deactivating this feature. Then adjust the dial-up
networking connection properties.
Windows XP
Page 32
E-Mail Problems
Resolving Other Technical Problems
Reinstalling Drivers
A driver is a software program that allows a hardware device controller to function properly and to communicate with the computer. Sometimes you can fix a
device problem by reinstalling its driver:
1. From the Windows desktop, insert the Dell Dimension ResourceCD into the CD or DVD drive.
If this is your first time to use the ResourceCD, go to step 2. If not, go to step 5.
2. When the ResourceCD Installation program starts, follow the prompts on the screen.
3. When the InstallShield Wizard Complete window appears, remove the ResourceCD and click Finish to restart the computer.
4. When you see the Windows desktop, reinsert the ResourceCD into the CD or DVD drive.
5. At the Welcome Dell System Owner screen, click Next.
A message appears that says the ResourceCD is detecting hardware in your computer.
The drivers that are used by your computer are automatically displayed in the My Drivers—The ResourceCD has identified these components in your
system window.
6. Click the driver that you want to reinstall and follow the instructions on the screen.
If a particular driver is not listed, then that driver is not required by your operating system.
To view other contents on the ResourceCD:
1. Verify that your computer is selected in the System Model list.
2. Verify that your operating system is selected in the Operating System list.
3. Select the type of device in the Device Type list.
1. Click the Start button, and then click Control Panel.
2. Click Printers and Other Hardware, and then click Phone and Modem Options.
3. Click to highlight your connection type in the displayed list.
4. Click the Dialing Rules tab, and then click the Edit button.
5. Click to place a checkmark in the To Disable Call Waiting box.
6. Select the disable code from the drop down menu (for example, *70).
7. Click Apply, and then click OK.
Windows 2000
1. Click the Start button, point to Settings, and then click Control Panel.
2. Double-click the Phone and Modems Options icon.
3. In the Locations window, select the location for which you want to disable call waiting, and then click Edit.
4. Ensure that To disable call waiting, dial: is checked and then select the proper code according to the information in your telephone
directory.
5. Click Apply and then click OK.
6. Close the Phone and Modems Options window.
7. Close the Control Panel.
Be sure that you have subscribed to an Internet service provider— Contact an Internet service provider to subscribe.
Ensure that you are connected to the Internet— With the Outlook Express e-mail program open, click File. If Work Offline has a check next
to it, click the check to remove it and connect to the Internet.
Go to the Dell support website— Go to the Dell | Support website for help with general usage, installation, and troubleshooting questions.
E-mail Dell— Go to the Dell | Support website and then click E-Mail Dell in the Communicate list. Send an e-mail message to Dell about your
problem; you can expect to receive an e-mail message from Dell within hours.
Call Dell— If you cannot solve your problem using the Dell | Support website or e-mail service, call Dell for technical assistance. See
"Contacting Dell" in the Dell Owner's Manual for the correct number to call.
NOTICE: TheDell|SupportwebsiteandtheDellDimensionResourceCDprovideapproveddriversforDell™computers.Ifyouinstalldriversobtained
from other sources, your computer might not work correctly.
HINT: The ResourceCD displays drivers only for hardware that Dell installed at the time of purchase. If you installed any additional hardware, those
drivers may not be displayed by the ResourceCD. If those drivers are not displayed, exit the ResourceCD program and refer to the documentation and
drivers that came with that product.
Page 33
4. Select a topic in the Topic list.
If you select Drivers in the Topic list and a particular driver is not listed, then that driver is not required by your operating system.
Using the Windows XP Device Driver Rollback
If you install a new device driver that causes system instability and you need to replace a device driver with a previously installed version, the Windows XP
Device Driver Rollback can replace the device driver. If you cannot reinstall your previous driver with the Driver Rollback process, then use System Restore to
attempt to return your operating system to its previous operating state before the new device driver installation:
1. Click the Start button, and then right-click My Computer.
2. Click Properties.
3. Click the Hardware tab, and then click Device Manager.
4. In the Device Manager window, right-click the device for which the new driver was installed, and then click Properties.
5. Click the Drivers tab.
6. Click Roll Back Driver.
Resolving Software and Hardware Incompatibilities
Windows XP and Windows 2000 interrupt request (IRQ) conflicts occur if a device either is not detected during the operating system setup or is detected but
incorrectly configured.
Windows XP
To check for conflicts on a computer running Windows XP:
1. Click the Start button, and then click Control Panel.
2. Click Performance and Maintenance, and then click System.
3. Click the Hardware tab, and then click the Device Manager button.
4. In the Device Manager list, check for conflicts with the other devices.
Conflicts are indicated by a yellow exclamation point (!) beside the conflicting device or a red X if the device has been disabled.
5. Double-click any conflicting device listed to bring up the Properties window so you can determine what needs to be reconfigured or removed from the
Device Manager.
Resolve these conflicts before checking specific devices.
6. Double-click the malfunctioning device type in the Device Manager list.
7. Double-click the icon for the specific device in the expanded list.
The Properties window appears.
8. Resolve any IRQ conflicts.
If there is an IRQ conflict, the Device status area in the Properties window reports what cards or devices are sharing the device's IRQ.
You can also use the Windows XP Hardware Troubleshooter. To use the troubleshooter, click the Start button and click Help and Support. Type hardware
troubleshooter in the Search field, and then click the arrow to start the search. Click Hardware Troubleshooter in the Search Results list. In the Hardware
Troubleshooter list, click I need to resolve a hardware conflict on my computer, and then click Next.
Windows 2000
To check for conflicts on a computer running Windows 2000:
1. Click the Start button, point to Settings, and click Control Panel.
2. In the Control Panel, double-click System.
3. Click the Hardware tab.
4. Click Device Manager.
5. Click View, and then click Resources by connection.
6. Double-click Interrupt request (IRQ) to view the IRQ assignments.
Conflicts are indicated by a yellow exclamation point (!) beside the conflicting device or a red X if the device has been disabled.
7. Double-click any conflicting device listed to bring up the Properties window so you can determine what needs to be reconfigured or removed from the
Device Manager. Resolve these conflicts before checking specific devices.
8. Double-click the malfunctioning device type in the Device Manager list.
NOTICE: The ResourceCD contains drivers for devices that are not part of your computer. Only reinstall the specific drivers for hardware included in your
computer. Otherwise, your computer might not work correctly.
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9. Double-click the icon for the specific device in the expanded list.
The Properties window appears.
10. If there is an IRQ conflict, the Device status area in the Properties window reports what cards or devices are sharing the device's IRQ. Resolve the IRQ
conflicts.
You can also use the Windows 2000 Hardware Troubleshooter. To use the troubleshooter, click the Start button and click Help. Click Troubleshooting and
Maintenance on the Contents tab, click Windows 2000 troubleshooters, and then click Hardware. In the Hardware Troubleshooter list, click I need to
resolve a hardware conflict on my computer, and then click Next.
Using System Restore
Windows XP provides a System Restore feature that allows you to return your computer to an earlier operating state if changes to the computer's hardware
or software (including new hardware or program installations), or other system settings, have left the computer in an undesirable operating state. You can
also undo the last System Restore.
System Restore automatically creates system checkpoints. You can also manually create your own checkpoints by creating Restore Points. To limit the amount
of hard disk space used, older restore points will be automatically purged.
If your computer experiences an operating system problem, you can use System Restore from Safe Mode or Normal Mode to return your computer to an earlier
operating state.
System Restore does not cause you to lose personal files stored in the My Documents folder, data files, or e-mail messages after restoring the computer to an
earlier time. If you restore the computer to a point before you installed a program, the program's data files won't be lost, but you will have to reinstall the
actual program again.
System Restore is enabled on your new computer. However, if you reinstall Windows XP with less than 200 MB of free hard-disk space available, System
Restore is automatically disabled. To see if System Restore is enabled:
1. Click the Start button, and then click Control Panel.
2. Click Performance and Maintenance.
3. Click System.
4. Click the System Restore tab.
5. Make sure that Turn off System Restore is unchecked.
Before proceeding with any System Restore function, Dell recommends that you thoroughly read Microsoft's information about using System Restore. To access
this information:
1. Click the Start button, point to All Programs—> Accessories—> System Tools, and then click System Restore.
2. Click Help in the upper-right corner of the Welcome to System Restore screen.
Creating a Restore Point
Using the XP System Restore Wizard
In Windows XP, you can manually create restore points or you can use the System Restore Wizard to create the restore points for you. To use the System
Restore Wizard, click the Start button, click Help and Support, click System Restore, and then follow the instructions on the screen. You can also create and
name a restore point if you are logged on as the computer administrator or a user with administrator rights.
Manually Creating the Restore Points
1. Click the Start button, point to All Programs—> Accessories—> System Tools, and then click System Restore.
2. Click Create a restore point.
3. Click Next.
4. Type a name for your new restore point in the Restore point description field.
The present date and time are automatically added to your restore point.
5. Click Create.
6. Click OK.
Restoring the Computer to an Earlier Operating State
If problems occur after installing a device driver, first try using Device Driver Rollback. If that is unsuccessful, then use System Restore.
1. Click the Start button, point to All Programs—> Accessories—> System Tools, and then click System Restore.
NOTICE: It is important to make regular backups of your data files. System Restore does not monitor changes to or recover your data files. If the
original data on the hard disk is accidentally erased or overwritten, or becomes inaccessible because of a hard disk malfunction, you will need your
backup files to recover the lost or damaged data.
NOTICE: Before restoring the computer to an earlier time, save and close all open files and close all open programs. Do not alter, open, or delete any
files or programs until the system restoration is complete.
Page 35
2. Be sure Restore my computer to an earlier time is selected, and then click Next.
3. Click a calendar date to which you want to restore your computer.
The Select a Restore Point screen provides a calendar that allows you to see and select restore points. All calendar dates with available restore points
appear in bold.
4. Select a restore point, and then click Next.
If a calendar date has only one restore point, then that restore point is automatically selected. If two or more restore points are available, click the
restore point that you want to use.
5. Click Next.
The Restoration Complete screen appears after System Restore completes collecting data, and then the computer automatically restarts.
6. After the computer restarts, click OK.
To change the restore point, you can either repeat the steps using a different restore point, or you can undo the restoration.
Undoing the Last System Restore
1. Click the Start button, point to All Programs—> Accessories—> System Tools, and then click System Restore.
2. Select Undo my last restoration and click Next.
3. Click Next.
The System Restore screen appears, and then the computer automatically restarts.
4. After the computer restarts, click OK.
Reinstalling Windows XP
Before reinstalling the Windows XP operating system to correct a problem, try correcting the problem by performing a Windows XP System Restore.
1. Insert the Operating System CD into the CD or DVD drive.
Close any program or utility that may start to run after you insert the CD into the drive.
2. Turn off the computer, and then turn the computer on again.
3. When the blue Dell logo appears, press <F12> immediately.
If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft Windows desktop. Then shut down the
computer and try again.
4. Use the arrow keys to select the CD-ROM option, and then press <Enter>.
5. When the Windows XP Setup screen appears, press <Enter> to select To set up Windows now.
6. Read the information in the License Agreement window, and then press <F8> on your keyboard to agree with the license information.
7. If your computer already has Windows XP installed and you want to recover your current Windows XP data, type r to select the repair option, and then
go to step 15.
If you want to install a new copy of Windows XP, press <Esc> to select the fresh copy option, and then press <Enter> on the next screen to select the
highlighted partition (recommended). Then follow the instructions on the screen.
The Windows XP Setup screen appears and Windows XP begins to copy files and install the devices. The computer automatically restarts multiple times
before it requires additional input.
8. When the Welcome to Microsoft screen appears, click the green arrow icon at the bottom of the screen to continue. Follow the on-screen directions to
finish.
NOTICE: Save and close all open files and close all open programs. Do not alter, open, or delete any files or programs until the system restoration is
complete.
NOTICE: Before undoing the last system restore, save and close all open files and close all open programs. Do not alter, open, or delete any files or
programs until the system restoration is complete.
NOTICE: Save and close all open files and close all open programs. Do not alter, open, or delete any files or programs until the system restoration is
complete.
NOTICE: The Operating System CD provides options for reinstalling your Windows XP operating system. The options can potentially overwrite files
installed by Dell and possibly affect programs installed on your hard drive. Therefore, Dell does not recommend that you reinstall your operating system
unless instructed to do so by a Dell technical support representative.
NOTICE: To prevent conflicts with Windows XP, you must disable any virus protection software installed on your computer before you reinstall Windows
XP.
HINT: The CD that you need to place in your CD or DVD drive is titled Operating System.
Page 36
9. When the Regional Settings screen appears, select the settings for your locale, and then click Next.
10. Enter your name and organization in the Personalize Your Software screen, and then click Next.
11. If you are reinstalling Windows XP Home Edition, enter a name for your computer when the Computer Name window appears, and then click Next.
If you are reinstalling Windows XP Professional, enter a name for your computer and a password when the Computer Name and Administrator
Password window appears, and then click Next.
12. If you have a modem installed and the Modem Dialing Information screen appears, enter the requested information, and then click Next.
13. Enter the date, time, and time zone in the Date and Time Settings window, and then click Next.
14. If you have a network card in your computer, select the appropriate network settings. If you do not have a network card, this option does not appear.
Windows XP begins to install its components and configure the computer. The computer automatically restarts.
15. When the Welcome to Microsoft screen appears, click the green arrow icon at the bottom of the screen to continue. Follow the on-screen directions to
finish.
16. Remove the CD from the drive.
17. Reinstall the appropriate drivers. See "Reinstalling Drivers."
18. Reinstall your virus protection software.
Reinstalling Windows 2000
1. Insert the Operating System CD into the CD or DVD drive.
Close any program or utility that may start to run after you insert the CD into the drive.
2. Turn off the computer, and then turn the computer on again.
3. When the blue Dell logo appears, press <F12> immediately.
If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft Windows desktop. Then shut down the
computer and try again.
4. Use the arrow keys to select the CD-ROM option, and then press <Enter>.
5. When the Windows 2000 Setup screen appears, ensure that the To setup Win2000 now, press ENTER option is highlighted. Then press <Enter>.
6. Read the information in the License Agreement screen, and then press <F8> to continue.
7. When the Windows 2000 Professional Setup screen appears, use the arrow keys to select the Windows 2000 partition option that you want. To
continue, press the key specified in the partition option that you chose.
8. When the Windows 2000 Professional Setup screen reappears, use the arrow keys to select the type of filing system that you want Windows 2000
to use, and then press <Enter>.
9. Press <Enter> again to restart your computer.
10. Click Next when the Welcome to the Windows 2000 Setup Wizard screen appears.
11. When the Regional Settings screen appears, select the settings for your locale, and then click Next.
12. Enter your name and organization in the Personalize Your Software screen, and then click Next.
13. Type the Windows product key in the fields provided, and then click Next.
The product key is the bar code number found on the Microsoft Windows label, which is located behind the front-panel connector door as shown on the
START HERE sheet for your computer.
14. When the Computer Name and Administrator Password screen appears, enter a name for your computer and a password, if desired. Then click Next.
15. Enter the date and time in the Date and Time Settings screen, and then click Next.
Windows 2000 now begins to install its components and configure the computer.
16. When the Completing the Windows 2000 Setup Wizard screen appears, remove the CD from the drive, and then click Finish.
The computer automatically restarts.
Back to Contents Page
NOTICE: The Operating System CD provides options for reinstalling your Windows 2000 operating system. The options can potentially overwrite files
installed by Dell and possibly affect programs installed on your hard drive. Therefore, Dell does not recommend that you reinstall your operating system
unless instructed to do so by a Dell technical support representative.
NOTICE: To prevent conflicts with Windows 2000, you must disable any virus protection software installed on your computer before you reinstall
Windows 2000.
HINT: The CD that you need to place in your CD or DVD drive is titled Operating System.
Page 37
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Back to Contents Page
Technical Specifications
Dell™Dimension™4400
Microprocessor
System Information
Expansion Bus
Memory
Drives
Ports and Connectors
Audio
2
Video
Controls and Lights
Power
Physical
Environmental
Microprocessor
Microprocessor type
Intel®Pentium®4 microprocessor that runs at 1.50,
1.60, 1.70, 1.80, 1.90, 2.0, 2.20, or 2.40 GHz
internally and 400 MHz externally
L1 cache
8 KB first-level
L2 cache
integrated 256-KB or 512-KB at full microprocessor
speed
System Information
System chip set
Intel 845 with DDR memory support
DMA channels
four
Interrupt levels
15
System BIOS chip
4 Mb (512 KB)
System clock
400-MHz data rate
Expansion Bus
Bus types
PCI and AGP
Bus speed
PCI: 33 MHz; AGP: 66 MHz
AGP connector
one
AGP connector size
172 pins
AGP connector data width (maximum)
32 bits
AGP bus protocols
4x/2x modes at 1.5 V
PCI connectors
four
PCI connector size
120 pins
PCI connector data width
(maximum)
32 bits
Memory
Architecture
DDR SDRAM
Memory connectors
two
Memory capacities
128-, 256-, and 512-MB non-ECC DDR SDRAM
Minimum memory
128 MB
Maximum memory
1 GB
Memory type
DDR (non-ECC)
BIOS address
F8000h
Drives
Externally accessible
two 5.25-inch bays
two 3.5-inch bays
Internally accessible
two bays for 1-inch–high IDE hard drives
Available devices
ATA-66 or ATA-100 Ultra DMA hard drive, CD drive, Zip
drive, DVD drive, DVD+RW drive, and CD-RW drive
Ports and Connectors
Externally accessible:
Serial
9-pin connector; 16550C-compatible
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Parallel
25-hole connector (bidirectional)
Video
15-hole connector
Keyboard
6-pin mini-DIN connector or USB connector
Mouse
6-pin mini-DIN connector or USB connector
USB
two front-panel and two back-panel USB–compliant
connectors
Headphone
front-panel miniature connector
Audio
1
three miniature connectors for line-in, line-out, and
microphone
Internally accessible:
Primary IDE channel
40-pin connector on PCI local bus
Secondary IDE channel
40-pin connector on PCI local bus
Floppy drive
34-pin connector
1
Present only on computers with integrated audio capabilities.
Audio2
Audio controller
ADI 1885
2
Present only on computers with integrated audio capabilities.
Video
Video controller
AGP 4X
Controls and Lights
Power control
push button
Power light
green light on power button—blinking green in sleep
state; solid green for power on state; solid amber for
possible internal power problem
Hard-drive access light
green
Diagnostic code lights
four bicolor (amber and green) located on back panel
Power
DC power supply:
Wattage
250 W
Heat dissipation
534 BTU (fully-loaded computer without monitor)
Voltage (switch-selectable
on back panel)
90 to 135 V at 50/60 Hz; 180 to 265 V at 50/60 Hz;
100 V at 50/60 Hz for Japanese computers
Backup battery
3-V CR2032 coin cell
Physical
Height x Width x Depth
42.5 x 18.1 x 44.7 cm
(16.7 x 7.1 x 17.6 inches)
Weight
12.7 kg (28 lb)
Environmental
Temperature:
Operating
10º to 35ºC (50º to 95ºF)3
Storage
–40º to 65ºC (–40º to 149ºF)
Relative humidity
20% to 80% (noncondensing)
Maximum vibration:
Operating
0.25 G at 3 to 200 Hz at 1/2 octave/min
Storage
0.5 G at 3 to 200 Hz at 1/2 octave/min
Maximum shock:
Operating
bottom half-sine pulse with a change in velocity of
50.8 cm/sec (20 inches/sec)
Storage
23-G faired-square wave with a velocity change of
508 cm/sec (200 inches/sec)
Altitude:
Operating
–15.2 to 3048 m (–50 to 10,000 ft)
3
Storage
–15.2 to 10,670 m (–50 to 35,000 ft)
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Back to Contents Page
3
At35°C(95°F),themaximumoperatingaltitudeis914m(3000ft).
Page 41
Back to Contents Page
System Setup Program
Dell™Dimension™4400
Overview
Each time you turn on or restart your computer system, the computer compares the hardware installed in the computer to the hardware listed in the
configuration information stored in NVRAM on the system board. If the computer detects a discrepancy between the two, it generates error messages that
identify the incorrect configuration settings. The computer then prompts you to enter the system setup program to correct the setting.
You can use the system setup program as follows:
l To change the system configuration information after you add, change, or remove any hardware in your computer
l To set or change user-selectable options—for example, the user password
Dell recommends that you write down the system setup program screen information for future reference.
The system setup screens are organized as follows:
l At the top is a menu bar for accessing the main program screens.
l The box on the left side of each screen lists options that define the installed hardware in the computer. Fields beside the options contain settings or
values. You can change those that are enclosed in brackets. Values that are grayed out contain status information reported by the system.
l The box on the right side of each screen displays help information for the option with a currently highlighted field.
l The lower-right area lists keys and their functions for the currently displayed screen.
The menu bar provides access to the following screens:
l Main screen — Provides settings for the basic computer configuration
l Advanced screen — Provides detailed settings for some computer features
l Security screen — Provides indications and settings for system password and setup password
l Power screen — Provides settings for system power management features
l Boot screen — Provides information about which device boots the computer
l Exit screen — Provides selections for saving and loading the configurations and options
In addition to these screens, options identified by a right arrow provide access to submenus.
Entering the System Setup Program
1. Turn on (or restart) your computer.
2. WhentheblueDELL™logoappears,press<Del>.
If you wait too long and the operating system begins to load into memory, let the system complete the load operation. Then shut down the computer
and try again.
Main Screen
Overview
Entering the System Setup Program
Main Screen
Advanced Screen
Security Screen
Power Screen
Boot Screen
Exit Screen
Clearing NVRAM
Clearing Forgotten Passwords
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Advanced Screen
Option
Function
BIOS Version
Displays the version of the BIOS being used.
Processor Type
Displays the type of microprocessor installed.
Processor Speed
Displays the internal speed of the microprocessor.
System Bus Frequency
Displays the external speed of the microprocessor.
Cache RAM
Displays the cache random access memory.
Service Tag
Displays the service tag for the computer.
Total Memory
Displays the total computer memory.
Memory Bank 0
Displays the memory size and type in memory bank 0.
Memory Bank 1
Displays the memory size and type in memory bank 1.
System Time
Resets the time on the computer's internal clock.
System Date
Resets the time on the computer's internal calendar.
Option
Function
Boot Configuration
Displays the Boot Configuration submenu.
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Boot Configuration Submenu
Peripheral Configuration Submenu
Peripheral Configuration
Displays the Peripheral Configuration submenu.
IDE Configuration
Displays the IDE Configuration submenu.
Diskette Configuration
Displays the Diskette Configuration submenu.
Event Log Configuration
Displays the Event Log Configuration submenu.
Video Configuration
Displays the Video Configuration submenu.
Option
Function
Plug and
Play OS
Determines whether the computer is configured to support Plug and Play devices from the operating system or from the system BIOS. Leave
this option set to Yes so the operating system handles all Plug and Play operation.
Be sure that this option is set to No before running Dell Diagnostics. Otherwise, some diagnostics may incorrectly fail.
The system setup program automatically checks the configuration of a Simple Boot Flag-compatible operating system at POST. Depending on
its configuration, the system setup program may automatically set this option to No or Yes.
Reset Config
Data
Permits resetting Plug and Play configuration data to default values. Yes resets the data; No (default) retains the current Plug and Play
settings. If set to Yes, configuration data reverts to default values the next time the computer boots. This option automatically reverts back to
the No setting.
Numlock
Selects power-on state for Numlock.
Page 44
IDE Configuration Submenu
Option
Function
Serial Port A
Configures the serial port. Set this option to Auto (default), Enabled, or Disabled. Depending on the port setting, you can set the
following additional options:
l Base I/O Address
If the port is set to Enabled, available I/O addresses are 3F8, 3E8, 2F8, and 2E8.
l Interrupt
If the port is set to Enabled, available interrupts are IRQ3 and IRQ4.
Parallel Port
Configures the parallel port. Set this option to Auto (default), Enabled, or Disabled. Depending on the port setting, you can set the
following additional options:
l Mode
If the port is set to Auto or Enabled, available modes are Output Only, Bi-Directional (default), ECP, and EPP.
See the device manufacturer's documentation for information on which mode to use before changing this setting.
l Base I/O Address
If the port is set to Enabled, available I/O addresses are 378 (default), 278, and 228.
l Interrupt
If the port is set to Enabled, available interrupts are 7 and 5.
Onboard Audio
Device
Sets the integrated audio controller to either Enabled (default) or Disabled.
Legacy USB
Support
Set to Enabled(default)toallowsupportforlegacyUSB.SettoDisabled if legacy USB support is not desired.
Page 45
Primary IDE Master Submenu
Option
Function
IDE
Controller
Configures the integrated primary and secondary IDE controllers and detects the types of drives attached to them. If set to Primary,
Secondary, or Both (default), the designated controller(s) are enabled, and the types of drives attached are displayed. If set to either
Primary or Secondary, the other controller is not enabled and the IRQ it normally uses becomes available. If set to Disabled, the system
cannot detect any drives attached to the controllers and displays None for all four IDE drive options.
PCI IDE Bus
Master
Set to Disabled to disable the computer's PCI IDE Bus Master functions. Set Enabled (default) to enable the features.
Primary IDE
Master
Identifies the first drive attached to the primary IDE interface, usually the boot hard drive. See "Primary IDE Master Submenu."
Primary IDE
Slave
Identifies the second drive attached to the primary IDE interface, usually a second hard drive. The format of this submenu is the same as the
one described in "Primary IDE Master Submenu."
Secondary
IDE Master
Identifies the first drive attached to the secondary IDE interface, if there is one. The format of this submenu is the same as the one described
in "Primary IDE Master Submenu."
Secondary
IDE Slave
Identifies the second drive attached to the secondary IDE interface, usually a CD, CD-RW, or DVD drive. The format of this submenu is the
same as the one described in "Primary IDE Master Submenu."
Option
Function
Drive Installed
Displays the primary IDE device type.
Type
Specifies the type of hard drive. Settings for this option are User, Auto, CD-ROM, ATAPI Removable, Other ATAPI, IDE Removable,
and None.
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Diskette Configuration Submenu
Event Log Configuration Submenu
Maximum Capacity
Displays the maximum capacity of the primary IDE device.
LBA Mode Control
Displays whether LBA mode control is enabled or not on the primary IDE device.
Multi-Sector
Transfers
Displays the multi-sector transfer setting of the primary IDE device.
PIO Mode
Displays the PIO mode setting of the primary IDE device.
Ultra DMA
Displays the ultra DMA setting of the primary IDE device.
Cable Detected
Displays the type of cable connected to the primary IDE device.
Option
Function
Diskette Controller
Configures the floppy drive interface. Options are Enabled (default) and Disabled.
Diskette A
Selects the floppy drive type from Not Installed, 360 KB 5 1/4", 1.2 MB 5 1/4", 720 KB 3 1/2", 1.44/1.25 MB 3 1/2", or 2.88 MB 3
1/2".
Diskette Write
Protect
Protects a floppy disk from being written to when set to Enabled. When this option is set to Disabled (default), the floppy disk is not
protected unless the write-protect tab is in place.
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Video Configuration Submenu
Security Screen
Option
Function
Event Log
Displays the space available for the event log.
Event Log Validity
Displays the validity of the event log.
View Event Log
Press <Enter> to view the event log.
Clear All Event Logs
Clears all event logs when the computer restarts if set to Yes. Retains the event log information if set to No (default).
Event Logging
Enables or disables event logging.
Mark Events As Read
Press <Enter>, and then select Yes or No to mark DMI events as either read or unread.
Option
Function
AGP Aperture Size
Sets the AGP aperture size as 64 MB (default) or 256 MB.
Primary Video
Adapter
Supports the Windows®2000 multiple-monitor feature. Select AGP (default) to specify the integrated AGP video controller as the
primary video adapter. Select PCI to specify a PCI video card as the primary video adapter.
AGP Hardware
Detected
Displays the type of AGP hardware detected by the computer.
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Power Screen
Option
Function
Supervisor Password
Is
Indicates whether a supervisor password has been assigned.
User Password Is
Indicates whether a user password has been assigned.
SetSupervisor
Password
Sets and confirms a supervisor password. If a supervisor password is set, a User Access Level option appears that enables you to
set the user access level as Full (default), Limited, No Access, or View Only.
Set User Password
Sets and confirms a user password.
Option
Function
ACPI Suspend State
Determines the ACPI suspend state. Options are State 1 and State 3 (default).
Restore on AC/Power
Loss
DetermineswhatstatethecomputerenterswhenACpowerisrestoredafterapowerloss.Settingsareasfollows:
l Last State (default)
Computer returns to the state it was in when power was lost.
l Stay Off
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Boot Screen
Exit Screen
Computer stays off when power is restored; you must press the power button to turn on the computer.
l Power On
Computer turns on when power is restored.
Wake on PME
Determines what state the computer enters when a PCI Power Management Enable wake-upeventoccurs.SettingsarePower On
and Stay Off (default).
Option
Function
Quiet
Boot
Enabled (default) displays the Dell logo during POST. Disabled displays the normal POST messages.
Quick
Boot
When set to Enabled, this option shortens POST by eliminating some tests. If set to Disabled (default), all POST tests occur.
The system setup program automatically checks the configuration of a Simple Boot Flag-compatible operating system at POST. Depending on its
configuration, the system setup program may automatically set this option to Enabled or Disabled.
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Clearing NVRAM
To clear NVRAM for all devices and restart the computer:
1. Enter the system setup program.
2. Press the right-arrow key to move to the Advanced menu.
3. Select the Boot Configuration submenu by pressing <Enter>.
4. Press the down-arrow key to highlight Reset Config Data. Then change the setting to Yes (see "Boot Configuration Submenu").
5. Press <F10> to exit the program and restart the computer.
Clearing Forgotten Passwords
If you forget your supervisor or setup password, you cannot operate your computer or change settings in the system setup program until you clear the
forgotten password(s).
1. Shut down the computer.
2. Turn off any attached devices and disconnect them from their electrical outlets.
3. Disconnect the power cable from your computer, and then press the power button to ground the system board.
4. Open the computer cover.
5. Locate the configuration jumper on the system board, and move the jumper plug so that pins 2 and 3 are jumpered (to "clear" the password when you
turn on the computer).
6. Close the computer cover, connect your computer to an electrical outlet, and turn on the computer.
Option
Function
Exit Saving Changes
Saves any changes you have made, exits the system setup program, and restarts the computer.
Exit Discarding
Changes
Discards any changes you have made, exits the system setup program, and restarts the computer.
Load Setup Defaults
Discards any changes you have made and reverts all options to their defaults, but does not exit the system setup program.
Load Custom Defaults
Discards any changes you have made and reverts all options to their defaults, but does not exit the system setup program.
Save Custom Defaults
Saves any changes you have made, but does not exit the system setup program.
Discard Changes
Discards any changes you have made and reverts all options to their last saved settings, but does not exit the system setup
program.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in "Safety Instructions."
NOTICE: The following procedure resets all standard settings for your computer. Before proceeding, record all current settings so that you can restore
them when you finish this procedure.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
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7. Access the system setup program and assign a new supervisor or setup password in the Maintenance menu.
8. Exit and save the system setup program settings.
9. After the computer boots, turn it off, and unplug it from the electrical outlet.
10. Open the computer cover again.
11. Move the configuration jumper plug so that pins 1 and 2 are jumpered (the "normal" setting).
12. Close the computer cover, connect your computer to an electrical outlet, and turn on the computer.
Back to Contents Page
Page 52
Back to Contents Page
Technical Overview
Dell™Dimension™4400
Internal View
System Board Connectors and Sockets
Socketed Microprocessor
Power Supply
DC Power Connectors
IDE Interface Cable Connections for Dell-Installed Drives
Placement of Dell-Installed Cards
Internal View
System Board Connectors and Sockets
CAUTION: Before you begin any of the procedures in this section, read "Safety Instructions."
NOTICE: Be careful when opening the computer cover to ensure that you do not inadvertently disconnect cables from the system board.
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Socketed Microprocessor
The 478-pin, socketed Intel®Pentium®4 microprocessor, shown above with the heat sink attached, contains an integrated 8-KB primary (L1) cache with a
secondary (L2) 256-KB Advanced Transfer Cache that resides in the processor's core and runs at the processor's internal clock speed.
The socketed microprocessor inserts into the ZIF connector mounted on the system board. A clip secures the heat sink to the connector.
Power Supply
The 250-W power supply can operate from an AC power source of 115 VAC at 60 Hz or 230 VAC at 50 Hz. The power supply provides the DC operating
voltages and currents listed in the following table.
Output Voltage
1
Regulation
Minimum Current (A)
Maximum Current (A)
2
+12 VDC
+/– 5%
0.0
14.0
3
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DC Power Connectors
Power Supply DC Connector Pin Assignments
DC Power Connector P1
+5 VDC
+/– 5%
1.0/0.2
4
22.0
+3.3 VDC
+/– 5%
0.1/0.0
5
18.0
–12 VDC
+/– 10%
0.0
1.0
+5 VFP
+/– 5%
0.0
2.0
1
Outputs meet and do not exceed SELV requirements per electrical standards (UL 1950, IEC 950, or EN60950 Par. 2.3).
2
Maximum continuous combined load on +5 VDC and +3.3 VDC outputs do not exceed 150 W.
3
Peak +12 VDC output power (up to 15.0 A) does not exceed 15 seconds in duration. Under this condition, tolerance on the +12 VDC output is allowed to be
+–10%.
4
+5 VDC minimum load is 0.2 A when there is a minimum load of 0.3 A on the +12 VDC and 0.42 A on the +3.3 VDC outputs simultaneously. +5 V minimum
load is 1 A for load transient tests.
5
In system configurations where +3.3 VDC is not used, all other outputs stay within regulation while the +3.3 VDC output is in a zero load condition.
Pin Number
Signal name
18-AWG Wire
1
+3.3 VDC
Orange
2
+3.3 VDC
Orange
3
COM
Black4+5 VDC
Red5COM
Black6+5 VDC
Red
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DC Power Connector P2
DC Power Connectors P3, P5, P6, P8, and P9
DC Power Connector P7
7
COM
Black8POK
Gray9+5 VFP
Purple10+12 VDC
Yellow11+3.3 VDC
1
Orange
12
–12 VDC
Blue13COM
Black14PS ON
Green15COM
Black16COM
Black17COM
Black18+5 VDC
N/C19+5 VCD
Red20+5 VCD
Red1Sense connector
Pin Number
Signal Name
18-AWG Wire
1
COM
Black2COM
Black3+12 VDC
Yellow4+12 VDC
Yellow
Pin Number
Signal Name
18-AWG Wire
1
+12 VCD
Yellow2COM
Black3COM
Black4+5 VDC
Red
Pin Number
Signal Name
22-AWG Wire
1
+5 VCD
Red2COM
Black3COM
Black4+12 VDC
Yellow
Page 56
IDE Interface Cable Connections for Dell-Installed Drives
Placement of Dell-Installed Cards
Back to Contents Page
IDE Channel IDE
Connector Location
Dell-Installed Drive
Primary IDE master
End connector on PRI IDE
connector cable
Hard drive
Primary IDE slave
Middle connector on PRI IDE
connectorcable
Zip drive
Secondary IDE master
End connector on SEC IDE
connectorcable
CD or DVD drive
Secondary IDE slave
Middle connector on SEC IDE
connector cable
CD-RW drive
Card Connector
Card Description
AGP connector
Video
PCI1 connector
Sound
PCI2 connector
Modem
PCI3 connector
Network adapter, wireless network adapter, or swap
box
PCI4 connector
1394 firewire
Page 57
Back to Contents Page
Controls and Lights
Dell™Dimension™4400
Front View
Back View
Front View
CD Activity Light
The CD activity light is on when the computer reads data from the CD drive.
CD Drive Eject Button
Press this button to eject your CD from the CD drive.
Floppy Drive Eject Button
Press this button to eject a disk from the floppy drive.
Hard-Drive Light
The hard-drive light is on when the computer reads data from or writes data to your hard drive.
Power Button
Press the power button to turn on the computer.
Floppy Drive Light
The floppy drive light is on when the computer reads data from or writes data to the floppy drive.
CD Audio Connector
Use the CD audio connector to attach headphones to the CD drive.
CD Volume Control Dial
Move the dial to adjust the volume of your audio CD.
NOTICE: To turn off your computer, perform a Windows®shutdown rather than pressing the power button. Otherwise, you may lose data.
HINT: To prevent damage to your computer, the front door is designed to "break away" if it is lifted up too far. For instructions on how to reattach the
door, see "Reattaching the Front Door and Hinge Arms."
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Windows Label
This Microsoft®Windows label provides the product key for your copy of Windows. You will need this information if you ever reinstall Windows.
USB Connectors
For quick connections, Dell recommends using the front USB connectors for USB devices such as digital cameras, gaming controllers, and scanners. Use the
back-panel USB connectors for USB devices that are seldom disconnected, such as USB mouse and keyboard devices.
Headphone Connector
Use the headphone connector to attach headphones and most speakers for listening to all sounds in your computer, including your CD player and system
sounds such as beeps.
Service Tag
This label lists your computer's service tag and your Express Service Code (if applicable). If you call Dell technical support, use your Express Service Code to
route the call directly to the correct support personnel. The Dell technical support staff will ask for your service tag.
Back View
Power Connector
NOTICE: This system supports the use of a USB hub. However, do not connect two or more USB hubs to a USB connector. Doing so may cause the
system to unexpectedly reboot.
HINT: If you attach a USB device that was not included in your original computer order, you may need to install a specific driver to make the device
work. Check the documentation that came with the device or contact the USB device manufacturer for more information.
HINT: Express Service may not be available in some countries.
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Plug one end of your computer power cable into the power connector, and plug the other end into an electrical outlet.
Voltage Selection Switch
The voltage selection switch must be set to match the AC power available at your location. The switch should be set for 115 V in most of North and South
America and some Far Eastern countries such as Japan, South Korea, and Taiwan. For most of Europe, the Middle East, and the Far East, the switch should be
set for 230 V.
Parallel Connector
Connect a parallel device, such as a printer, to the parallel connector. If you have a USB printer, plug it into a USB connector.
Serial Connector
Connect a serial device, like a handheld device, to the serial connector.
Mouse Connector
Plug a standard mouse into the green mouse connector. If you have a USB mouse, plug it into a USB connector.
Keyboard Connector
If you have a standard keyboard, plug the keyboard into the purple keyboard connector. If you have a USB keyboard, plug it into a USB connector.
USB Connectors
For quick connections, Dell recommends using the front USB connectors for USB devices such as digital cameras, gaming controllers, and scanners. Use the
back-panel USB connectors for USB devices that are seldom disconnected, such as USB mouse and keyboard devices.
Line-Out Connector
Use the green line-out connector (available on computers with integrated sound) to attach headphones and most speakers with integrated amplifiers.
On computers with a sound card, the line-out connector is on the card.
Line-In Connector
Use the blue line-in connector (available on computers with integrated sound) to attach a record/playback device such as a cassette player, CD player, or VCR.
On computers with a sound card, the line-in connector is on the card.
Microphone Connector
Use the pink microphone connector (available on computers with integrated sound) to attach a personal computer microphone for voice or musical input into a
sound or telephony program.
On computers with a sound card, the microphone connector is on the card.
Video Connector
Plug the cable from your monitor into the blue video connector.
Back to Contents Page
HINT: The voltage selection switch must be set to the 115V position even though the AC supply in Japan is 100 V.
NOTICE: This system supports the use of a USB hub. However, do not connect two or more USB hubs to a USB connector. Doing so may cause the
system to unexpectedly reboot.
HINT: If you attach a USB device that was not included in your original computer order, you may need to install a specific driver to make the device
work. Check the documentation that came with the device or contact the USB device manufacturer for more information.
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