Dell Dimension 1100 Service Manual
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Dell™ Dimension™ 1100/B110 Systems Service Manual
Before You Begin
Removing the Computer Cover
Technical Overview
Technical Specifications
Advanced Troubleshooting
System Setup
Removing and Installing Parts
Replacing the Computer Cover
Notes, Notices, and Cautions
NOTE:
A NOTE indicates important information that helps you make better use of your computer.
NOTICE:
A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the
problem.
CAUTION:
A CAUTION indicates a potential for property damage, personal injury, or death.

Abbreviations and Acronyms

For a complete list of abbreviations and acronyms, see the Dell Dimension Help file.
If you purchased a Dell™ n Series computer, any references in this document to Microsoft® Windows® operating systems are
not applicable.
Information in this document is subject to change without notice.
© 2006 Dell Inc. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell, the DELL logo, Inspiron, Dell Precision, Dimension, OptiPlex, Latitude, PowerEdge, PowerVault, PowerApp, and
Dell OpenManage are trademarks of Dell Inc.; Intel, Pentium, and Celeron are registered trademarks of Intel Corporation; Microsoft and Windows
are registered trademarks of Microsoft Corporation.
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 Inc. disclaims any proprietary interest in trademarks and trade names other than its own.
Model DMC
August 2006
Rev. A02

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Summary of Contents for Dell Dimension 1100

  • Page 1: Abbreviations And Acronyms

    Trademarks used in this text: Dell, the DELL logo, Inspiron, Dell Precision, Dimension, OptiPlex, Latitude, PowerEdge, PowerVault, PowerApp, and Dell OpenManage are trademarks of Dell Inc.; Intel, Pentium, and Celeron are registered trademarks of Intel Corporation; Microsoft and Windows are registered trademarks of Microsoft Corporation.
  • Page 2: Before You Begin

    You have performed the steps in Turning Off Your Computer Before Working Inside Your Computer. You have read the safety information in your Dell™ Product Information Guide. A component can be replaced or—if purchased separately—installed by performing the removal procedure in reverse order.
  • Page 3 NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty. NOTICE: When you disconnect a cable, pull on its connector or on its strain-relief loop, not on the cable itself. Some cables have a connector with locking tabs;...
  • Page 4: Removing The Computer Cover

    Back to Contents Page Removing the Computer Cover Dell™ Dimension™ 1100/B110 Systems Service Manual CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
  • Page 5: Technical Overview

    Back to Contents Page Technical Overview Dell™ Dimension™ 1100/B110 Systems Service Manual Inside View of Your Computer System Board Components Power Supply DC Connector Pin Assignments Inside View of Your Computer CAUTION: Before you begin any of the procedures in this section, see the safety instructions located in the Product Information Guide.
  • Page 6: Power Supply Dc Connector Pin Assignments

    Power Supply DC Connector Pin Assignments...
  • Page 7 The 250-W power supply can operate from an AC power source of 115 VAC or 230 VAC at 50 – 60 Hz. The power supply provides the DC operating voltages and currents listed in the following table. Minimum Current (A) Output Voltage Maximum Current (A) +12 VDC...
  • Page 8: Dc Power Connector P1

    is in a zero load condition. DC Power Connector P1 NOTE: The +3.3 VDC output wires (orange) must be 16 AWG. All other output wires must be 18 AWG. Pin Number Signal name Wire Color +3.3 VDC Orange +3.3 VDC Orange Black +5 VDC...
  • Page 9: Dc Power Connector P4

    Pin Number Signal Name 18-AWG Wire Color Black Black +12 VDC Yellow +12 VDC Yellow DC Power Connectors P8 and P9 Pin Number Signal Name 18-AWG Wire Color +12 VDC Yellow Black Black +5 VDC DC Power Connector P4 Pin Number Signal Name 18-AWG Wire Color No connect Black Black...
  • Page 10: Dc Power Connector P7

    Pin Number Signal Name 18-AWG Wire Color +12 VDC Yellow Black Black +5 VDC DC Power Connector P7 Pin Number Signal Name 22-AWG Wire Color +5 VDC Black Black +12 VDC Yellow Back to Contents Page...
  • Page 11: Technical Specifications

    Back to Contents Page Technical Specifications Dell™ Dimension™ 1100/B110 Systems Service Manual Processor Processor type ® Intel® Pentium 4 with HT Technology ® and Intel Celeron NOTE: Not all Pentium 4 processors support Hyper-Threading technology. Level 1 (L1) cache 8 KB...
  • Page 12 Intel Celeron: 533 MHz Video Type Integrated Intel Extreme Graphics 2 Audio Type AC97, Sound Blaster Emulation, ADI 1980 audio controller with 2.1 implementation Expansion Bus Bus type Bus speed 33 MHz connectors three connector size 120 pins connector data width (maximum) 32 bits Drives Externally accessible:...
  • Page 13 Secondary IDE drive 40-pin connector on PCI local bus Floppy drive 34-pin connector CD Audio 4-pin connector 3-pin connector Controls and Lights Power control Push button Hard-drive access light Green Link integrity light (on integrated network No light for 10-Mb operation; green light adapter) for 100-Mb operation Activity light (on integrated network...
  • Page 14 Maximum shock: Operating 105 G, 2 ms Storage 32 G with a velocity change of 596.9 cm/sec (235 inches/sec) Altitude: Operating –15.2 to 3048 m (–50 to 10,000 ft) NOTE: At 30°C (95°F), the maximum operating altitude is 914 m (3000 ft). Storage –15.2 to 10,670 m (–50 to 35,000 ft) Back to Contents Page...
  • Page 15: Advanced Troubleshooting

    Back to Contents Page Advanced Troubleshooting Dell™ Dimension™ 1100/B110 Systems Service Manual Power Lights Network Lights Diagnostic Lights Beep Codes System Messages Power Lights The power button light located on the front of your computer illuminates and blinks or remains solid to indicate different states: If the power light is green, the power status is good and the computer is functioning properly.
  • Page 16: Diagnostic Lights

    If the problem persists, see "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance. A possible graphics If the computer has a graphics card, remove the card, reinstall it, and card failure has then restart the computer.
  • Page 17: Beep Codes

    1-3-1 through 2-4-4 Memory not being properly identified or used 4-3-1 Memory failure above address 0FFFFh If you hear one of the following beep codes, see "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance. Code Cause...
  • Page 18: System Messages

    C: Drive Failure The cache memory is not See "Contacting Dell" in your Owner's Manual Cache Memory Bad, operating. for instructions on obtaining technical Do Not assistance.
  • Page 19 program is incorrect or the computer. CMOS battery charge may be low. Checksum Failure CMOS System Options Not CMOS Display Type Mismatch CMOS Memory Size Mismatch CMOS Time and Date Not Drive A or B is present but has Ensure that the drive is installed correctly in Diskette Boot Failure failed the BIOS POST.
  • Page 20: Entering System Setup

    Entering System Setup 1. Turn on (or restart) your computer. 2. When the blue DELL™ logo appears, press <F2> immediately. If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft® Windows®...
  • Page 21: System Setup Options

    window. The field is a scrolling list of features that define the configuration of your computer, including installed hardware, power conservation, and security features. Scroll up and down the list by using the up- and down-arrow keys. As an option is highlighted, the Option Field displays more information about that option and the option's current and available settings.
  • Page 22 Boot Sequence Lists the drives in the order by which they boot. Floppy device - Identifies and defines the floppy drive attached to the FLOPPY connector on the system board. If there is no installed drive, it appears as Floppy device (not installed). Hard-Disk Drive - Identifies the hard drive.
  • Page 23: Option Settings

    Parallel Port Identifies the address for the parallel port. I/O Address Diskette Identifies and defines the floppy drive interface. You can set the interface to Auto, Read Only, or Off. Interface This setting specifies which video controller is primary when two video controllers are present on the Primary Video computer.
  • Page 24: Changing Boot Sequence For Future Boots

    NOTE: If you are booting to a USB floppy drive, you must first set the floppy drive to OFF in system setup. 1. If you are booting to a USB device, connect the USB device to a USB connector. 2. Turn on (or restart) your computer. 3.
  • Page 25 2. Locate the 3-pin password jumper (PSWD) on the system board and attach the jumper plug to pins 2 and 3 to clear the password. NOTE: When you receive your computer, the jumper plug is attached to pins 1 and 2. 3.
  • Page 26: Removing And Installing Parts

    Back to Contents Page Removing and Installing Parts Dell™ Dimension™ 1100/B110 Systems Service Manual Memory CD/DVD Drive Cards Processor Front Panel Fan Assembly Drives System Board Hard Drive Power Supply Floppy Drive Battery Memory You can increase your computer memory by installing memory modules on the system board. For information on the type of...
  • Page 27: Installing Memory

    If you remove your original memory modules from the computer during a memory upgrade, keep them separate from any new modules that you may have, even if you purchased the new modules from Dell. You should install your new memory modules in connectors DIMM3 and DIMM4. If possible, do not pair an original memory module with a new memory module.
  • Page 28 9. Align the notch on the bottom of the module with the crossbar in the connector. NOTICE: To avoid breaking the memory module, do not press near the middle of the module. 10. Insert the module straight down into the connector, ensuring that it fits into the vertical guides at each end of the connector.
  • Page 29: Pci Cards

    15. To verify that the memory is installed correctly, check the amount of memory (RAM) listed. Cards CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
  • Page 30 before installing any cards. 3. Align the cutout on the bottom of the card with the crossbar in the system board connector. Gently rock the card into the connector until it is fully seated. Ensure that the card is fully seated and that its bracket is within the card slot. 4.
  • Page 31: Removing The Front Panel

    4. Grasp the card by its top corners, and ease it out of its connector. 5. If you are removing the card permanently, install a filler bracket in the empty card-slot opening. If you need a filler bracket, see "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance.
  • Page 32: Removing The Front-Panel Insert

    Remove the computer cover. 3. Release and remove the front panel: a. If your computer has a release lever, push the release lever to release the top tab. b. Reach inside the computer and push the top and bottom tab towards you to release them. c.
  • Page 33: Reattaching The Front Panel

    2. Push out the front-panel insert. Reattaching the Front Panel 1. Reattach the front panel to the side hinges. 2. Rotate the front panel until it snaps onto the front of the computer.
  • Page 34: General Installation Guidelines

    Drives Your computer supports a combination of these devices: One hard drive One optional floppy Up to two CD or DVD drives General Installation Guidelines Connect the IDE hard drive to the system board connector labeled PRI IDE. Connect CD/DVD drives to the connector labeled J6J1.
  • Page 35: Removing A Hard Drive

    CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover. NOTICE: To avoid damage to the drive, do not set it on a hard surface. Instead, set the drive on a surface, such as a foam pad, that will sufficiently cushion it.
  • Page 36: Installing A Hard Drive

    3. If you are replacing the hard drive, remove the drive from the bracket: a. Remove the hard drive-securing screws. b. Remove the hard drive from the bracket. Installing a Hard Drive 1. Unpack the replacement hard drive, and prepare it for installation. 2.
  • Page 37 b. Gently swing the drive toward the bracket and align the two screw holes on the other side of the drive with the screw holes on the bracket. c. Insert and tighten the two screws that secures the hard drive to the hard drive bracket. 5.
  • Page 38: Removing A Floppy Drive

    See the documentation for your operating system for instructions. 15. Test the hard drive by running the Dell Diagnostics. If the drive you just installed is the primary drive, install your operating system on the hard drive. Floppy Drive CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
  • Page 39: Installing A Floppy Drive

    3. Remove the floppy drive from the bracket: a. Remove all four drive-securing screws (two on each side). b. Remove the floppy drive from the bracket. Installing a Floppy Drive 1. Remove the floppy drive bracket from the computer (see page 55).
  • Page 40: Removing A Cd/Dvd Drive

    11. Enter system setup (see Entering System Setup) and update the appropriate Diskette Drive option. 12. Verify that your computer works correctly by running the Dell Diagnostics. CD/DVD Drive CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
  • Page 41: Installing A Cd/Dvd Drive

    2. Remove the CD/DVD drive securing screw. 3. Slide the drive forward and remove it from the drive bay. Installing a CD/DVD Drive 1. If you are installing a new drive, unpack the drive and prepare it for installation. Check the documentation that accompanied the drive to verify that the drive is configured for your computer. If you are installing an IDE drive, configure the drive for the cable select setting.
  • Page 42: Adding A Second Cd Or Dvd Drive

    12. Enter system setup (see Entering System 13. Verify that your computer works correctly by running Dell Diagnostics. Adding a Second CD or DVD Drive 1. Ensure that the jumper setting on the new drive is set for "cable select" (see the documentation that came with the drive for information).
  • Page 43 4. After the drive is in place, apply pressure to ensure that the drive is fully seated. 5. Use the securing screw that came with the drive to attach the drive to the computer. NOTICE: Match the colored strip on the cable with pin 1 on the drive (pin 1 is marked as "1"). 6.
  • Page 44: Removing The Processor

    Removing the Processor NOTICE: Do not perform the following steps unless you are familiar with hardware removal and replacement. Performing these steps incorrectly could damage your system board. For technical service, see "Contacting Dell" in the Owner's Manual. CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
  • Page 45: Installing The Processor

    NOTICE: If you are installing a processor upgrade kit from Dell, discard the original heat sink. If you are not installing a processor upgrade kit from Dell, reuse the original heat sink and blower when you install your new processor.
  • Page 46 If you are not installing a processor upgrade kit from Dell, reuse the original heat sink assembly when you replace the processor. If you installed a processor replacement kit from Dell, return the original heat sink assembly and processor to Dell in the same package in which your replacement kit was sent.
  • Page 47: Removing The Fan Assembly

    8. Lower the airflow shroud over the heat sink. 9. Reconnect the cooling fan power cable to the fan connector on the system board. 10. Reconnect the power cable to the processor power connector on the system board. 11. Close 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.
  • Page 48: Replacing The Fan Assembly

    5. Disconnect the fan power cable from its connector on the system board. 6. Pull the fan release lever away from the back of the computer and slide the fan toward the release lever. 7. Remove the fan assembly from the computer. Replacing the Fan Assembly 1.
  • Page 49: Removing The System Board

    4. Replace the computer cover. 5. Connect the AC power cable to the AC power connector on the back of the power supply. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 6.
  • Page 50: Installing The System Board

    9. Lift the system board out from the computer. 10. Place the system board that you just removed next to the replacement system board. Visually compare the replacement system board to the existing system board to ensure that you have the correct part. Installing the System Board 1.
  • Page 51: Removing The Power Supply

    NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 10. Connect your computer and devices to electrical outlets, and turn them on. Power Supply Removing the Power Supply CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
  • Page 52 1. Slide the power supply into place. 2. Replace the four screws that secure the power supply to the back of the computer. Reinstall the fan assembly. 4. Reconnect the DC power cables to the drives and system board. 5. Replace the computer cover. 6.
  • Page 53 Replace the computer cover. NOTICE: To connect a network cable, first plug the cable into the network device and then plug it into the computer. 7. Connect your computer and devices to electrical outlets, and turn them on. Enter system setup and restore the settings you recorded in step 1.
  • Page 54: Replacing The Computer Cover

    Back to Contents Page Replacing the Computer Cover Dell™ Dimension™ 1100/B110 Systems Service Manual CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. 1. Ensure that all cables are connected, and fold cables out of the way.

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