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Dell Dimension 4700C Service Manual
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Dell Dimension 4700C Service Manual

Dell Dimension 4700C Service Manual

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Dell™ Dimension™ 4700C Service Manual
Before You Begin
Attaching and Removing the Computer Stand
Opening the Computer Cover
Inside View Of Your Computer
Specifications
Troubleshooting Tools
System Setup
Removing and Installing Parts
Model DHP
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.
Information in this document is subject to change without notice.
© 2004 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, a n d Dell OpenManage are trademarks of Dell
Inc.; Intel, Pentium, a n d 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.
September 2004        Rev. A00

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  • Page 1 Inc.; Intel, Pentium, a n d 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.

  • Page 2: Power Lights

    Back to Contents Page   Troubleshooting Tools Dell™ Dimension™ 4700C 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 and the computer is not responding, see...
  • Page 3  If the problem still exists, install a graphics card that you know works and restart the computer.  If the problem persists or the computer has integrated graphics, contact Dell (see your Owner's Manual). A possible floppy or hard drive Reseat all power and data cables and restart the computer.

  • Page 4: Beep Codes

    One possible beep code (code 1-3-1) consists of one beep, a burst of three beeps, and then one beep. This beep code tells you that the computer encountered a memory problem. Reseating the memory modules may fix the beep code errors listed in the following table. If the problem persists, see "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance.
  • Page 5 Manual for instructions on obtaining Bad, Do Not technical assistance. Enable Cache CH-2 Timer Error An error is occurring on the See "Contacting Dell" in your Owner's timer on the system board. Manual for instructions on obtaining technical assistance. The system configuration...

  • Page 6: Before You Begin

    Hold a component such as a processor by its edges, not by its pins. 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.
  • Page 7   Remove the computer stand, if it is attached.   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.   Open the computer cover. NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer.

  • Page 8: Opening The Computer Cover

    Back to Contents Page   Opening the Computer Cover Dell™ Dimension™ 4700C Service Manual   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.   Shut down the computer through the Start menu.

  • Page 9: Removing And Installing Parts

    Back to Contents Page   Removing and Installing Parts Dell™ Dimension™ 4700C Service Manual   Reattaching the Front Door   Modem   Memory   Power Supply   Cards   System Board   Flash Card Reader   Battery   Processor   Closing the Computer Cover  Reattaching the Front Door To prevent damage to your computer, the front door is designed to "break away" if it is opened too far. To reattach the front door:   Shut down the computer through the Start menu.

  • Page 10: Addressing Memory With 4-Gb Configurations

    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. If possible, do not pair an original memory module with a new memory module.

  • Page 11: Removing Memory

    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. You can do so by touching an unpainted metal surface on the computer chassis. Your Dell™ computer provides the following slots for PCI Express cards:  One PCI Express x16 card slot...

  • Page 12: Installing A Pci Express Card

     One PCI Express x1 card slot NOTE: The slots for the PCI Express x16 and PCI Express x1 cards are half-height slots.   PCI Express Cards Your computer supports one PCI Express x16 card and one PCI Express x1 card. If you are installing or replacing a PCI Express card, follow the procedures in the next section.
  • Page 13   3. If you are replacing a card that is already installed in the computer, remove the card. If necessary, disconnect any cables connected to the card. Gently pull the securing tab, grasp the card by its top corners, and then ease it out of its connector.

  • Page 14: Removing A Pci Express Card

      4. 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. NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keep dust and dirt out of your computer.
  • Page 15   1. Follow the procedures in "Before You Begin."   2. Lay the computer on its side so that the system board is on the bottom of the inside of the computer.   Open the computer cover.   4. Disconnect the flex cable assembly from the back of the CD drive.  ...

  • Page 16: 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:...
  • Page 17 5. If you are replacing the heat sink only, remove the two screws on the blower to remove it from the heat sink. 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 when you install your new processor.

  • Page 18: Installing The Processor

      7. Open the processor cover. NOTICE: Carefully remove the processor from the socket to avoid permanent damage to the processor.   8. To remove the processor from the socket, lift the processor vertically in one motion. Leave the release lever extended in the release position so that the socket is ready for the new processor.  ...

  • Page 19: Replacing The Modem

    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 20: Replacing The Modem Cable And External Modem Connector

    Open the computer cover   3. Remove the existing modem: a.  Disconnect the modem cable from the modem. b.  Use a size #1 screwdriver to remove the screws securing the modem and ground wire to the system board, and set the screws aside. c.

  • Page 21: Removing The Power Supply

      4. Remove the external modem connector: a.  Remove the two screws from the fan and lift the fan up and out of the way. b.  Remove the screw from the cable clip located by the external modem connector. c.  To release the modem connector, gently open the tabs on each side of the external clip that holds the external modem connector in place. d.

  • Page 22: Replacing The Power Supply

      Remove the computer stand, if it is attached.   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover. NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer.

  • Page 23: Removing The System Board

      Removing the System Board   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in your Product Information Guide   Shut down the computer through the Start menu.   2. Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut down your computer, turn them off now.

  • Page 24: Replacing The System Board

      13. 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:  Remove the memory modules and install them on the replacement system board.  ...

  • Page 25: Replacing The Battery

     Battery   Replacing the Battery   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions 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 26: Closing The Computer Cover

     Closing the Computer Cover   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.   1. Place the computer on a flat surface.   2. Ensure that all cables are connected, and fold cables out of the way. Gently pull the power cables toward you so that they do not get caught underneath the drives.

  • Page 27: Specifications

    Back to Contents Page   Specifications Dell™ Dimension™ 4700C Service Manual   Memory Type 400-MHz and 533-MHz DDR2 unbuffered SDRAM Memory connectors Memory capacities 256-MB, 512-MB, 1-GB, or 2-GB non-ECC Maximum memory 4 GB   NOTE: See "Addressing Memory With 4-GB Configurations" in your Owner's Manual to verify the amount of memory available to the operating system.
  • Page 28 Activity light (on integrated network adapter) yellow blinking light Diagnostic lights four lights on the back panel (See "Diagnostic Lights" in your Dell Dimension Owner's Manual.) Standby power light AUX_PWR on the system board Activity light (optional Flash Card Reader) green blinking light  ...
  • Page 29 Voltage (See the safety instructions in the fixed-voltage power supply — 110 V at 50/60 Hz Product Information Guide for important voltage setting information.) manual selection and auto-sensing power supplies — 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 lithium coin cell  ...

  • Page 30: Attaching And Removing The Computer Stand

    Back to Contents Page   Attaching and Removing the Computer Stand Dell™ Dimension™ 4700C Service Manual   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTE: Place your computer on a soft surface to prevent scratching the top cover.
  • Page 31 3. Place the computer in a horizontal position until you reattach the stand. Back to Contents Page  ...

  • Page 32: 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® desktop. Then shut down your computer and try again.
  • Page 33 Drives Identifies and defines the floppy drive attached to the FLOPPY connector on the system board as Off, USB, Internal, or Read Only. Diskette Drive Drives 0 Identifies the drives attached to the SATA or PRI IDE connectors on the system board, and lists the capacity for hard drives. through 1 SATA Operation Identifies and defines the SATA modes.

  • Page 34: Option Settings

    Maintenance Load Defaults This setting restores the computer's factory-installed default settings. Event Log Displays the system event log. POST Behavior Fastboot When set to On (default), your computer starts more quickly because it skips certain configurations and tests. This option involves the rightmost bank of keys on your keyboard. When set to On (default), this option activates the numeric and Numlock Key mathematical features shown at the top of each key.

  • Page 35: Clearing Forgotten Passwords

      5. Press the <u> key or the <d> key to move a selected device up or down the list.  Clearing Forgotten Passwords   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.  ...
  • Page 36 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.   4. Connect your computer and devices to electrical outlets, and turn them on. Back to Contents Page  ...

  • Page 37: Inside View Of Your Computer

    Back to Contents Page   Inside View of Your Computer Dell™ Dimension™ 4700C Service Manual   Internal System Board Components   Power Supply DC Connector Pin Assignments   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

  • Page 38: Power Supply Dc Connector Pin Assignments

     Power Supply DC Connector Pin Assignments   DC Power Connector P1       Pin Number Signal name 18-AWG Wire...

  • Page 39: Dc Power Connector P2

    +3.3 VDC Orange +3.3 VDC Orange Black +5 VDC Black +5 VDC Black Gray +5 VSB Purple +12 VDC Yellow Orange +3.3 VDC –12 VDC Blue Black PS ON Green Black Black Black +5 VDC +5 VDC +5 VDC Sense connector.  ...
  • Page 40       Pin Number Signal Name 22-AWG Wire +5 VCD Black Black +12 VDC Yellow Back to Contents Page  ...

  • Page 41: Notes, Notices, And Cautions

    Inc.; Intel, Pentium, a n d 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.

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