Dell Inspiron 620 Service Manual
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Dell Inspiron 620 Service Manual

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Dell™ Inspiron™ 620 Service Manual 
Technical Overview
Before You Begin
Computer Cover
Memory Module(s)
Front Bezel
Card Retention Bracket
PCI Express Cards
Drives
Front I/O Panel
 Notes, Cautions, and Warnings
NOTE:
A NOTE indicates important information that helps you make better use of your computer.
CAUTION:
A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
WARNING:
A WARNING indicates a potential for property damage, personal injury, or death.
Information in this document is subject to change without notice.
© 2011 Dell Inc. All rights reserved.
Trademarks used in this text: Dell™, the DELL logo, and Inspiron™ are trademarks of Dell Inc.; Microsoft®, Windows®, and the Windows start button logo
trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.
Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Regulatory model: D11M series     Regulatory type: D11M001
2011 - 05     Rev. A00
Power Button Module
Fans
Processor
Coin-Cell Battery
Power Supply
System Board
System Setup
Flashing the BIOS
are either

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  • Page 1 Trademarks used in this text: Dell™, the DELL logo, and Inspiron™ are trademarks of Dell Inc.; Microsoft®, Windows®, and the Windows start button logo are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries. Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. Regulatory model: D11M series     Regulatory type: D11M001 2011 - 05     Rev. A00...

  • Page 2: Technical Specifications

    Regulatory Compliance Homepage at dell.com/regulatory_compliance.   CAUTION: 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.   CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself.
  • Page 3 2. Turn off your computer (see Turning Off Your Computer) and all attached devices.   CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from the network device.   3. Disconnect all telephone or network cables from the computer.  ...

  • Page 4: Follow The Instructions In

    Do not operate your computer with any cover(s) (including computer covers, front bezels, filler brackets, front-panel inserts, etc.) removed.   CAUTION: 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.  Removing the Front Bezel  ...

  • Page 5: Table Of Contents

    1. Follow the instructions in Before You Begin.   2. Align and insert the front bezel clamps into the front panel slots.   3. Rotate the front bezel towards the computer until the front bezel tabs snap into place. 1 front bezel 2 front bezel tabs (4) 3 front panel slots (4) 4 front bezel clamps (4) 5 front panel...

  • Page 6: Flashing The Bios

    The BIOS may require flashing when an update is available or when replacing the system board. To flash the BIOS:   1. Turn on the computer.   2. Go to support.dell.com/support/downloads.   3. Locate the BIOS update file for your computer. NOTE: The Service Tag for your computer is located on a label on the top of your computer.

  • Page 7: Pci Express Cards

    Do not operate your computer with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed.   CAUTION: 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.  Removing PCI Express Cards  ...

  • Page 8: Replacing Pci Express Cards

    1 securing tab 2 PCI Express x16 card slot 3 PCI Express x16 card  Press the securing tab down, grasp the card by its top corners, and then ease it out of the connector. 1 securing tab 2 PCI Express x16 card slot 3 PCI Express x16 card 1 securing tab 2 PCI Express x16 card slot 3 PCI Express x16 card...
  • Page 9 1 PCI Express x1 card 2 PCI Express x1 card slot PCI Express x16 card — The securing tab on the PCI Express x16 card slot may vary based on your computer model. Perform one of the following instructions based on the type of securing tab on the PCI Express x16 card slot.  Push the securing tab to the side and place the PCI Express card in the slot on the system board and press down firmly.

  • Page 10: Configuring Your Computer After Removing Or Installing The Pci Express Card

    1 PCI Express x16 card slot 2 PCI Express x16 card   4. Replace the card retention bracket (see Replacing the Card Retention Bracket).   5. Connect any cables that should be attached to the card. See the documentation that shipped with the card for information about the card's cable connections.  ...

  • Page 11: Before You Begin

    Do not operate your computer with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed.   CAUTION: 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.  Removing the Card Retention Bracket  ...

  • Page 12: Removing The Coin-Cell Battery

    Do not operate your computer with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed.   CAUTION: 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.  Removing the Coin-Cell Battery  ...
  • Page 13 1 coin-cell battery 2 battery socket   3. Replace the computer cover (see Replacing the Computer Cover).   4. Connect your computer and devices to electrical outlets, and then turn them on.   5. Enter system setup (see System Setup) and restore the settings you recorded in step Back to Contents Page  ...

  • Page 14: Replacing The Computer Cover

    Do not operate your computer with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed.   CAUTION: 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.   CAUTION: Ensure that sufficient space exists to support the computer with the cover removed—at least 30 cm (1 ft.) of desk top space.
  • Page 15 6. Using a screwdriver, replace the two screws that secure the computer cover to the chassis. screws (2) computer cover   7. Place the computer in an upright position. Back to Contents Page  ...

  • Page 16: Removing The Processor

    Do not operate your equipment with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed.   CAUTION: 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.   CAUTION: Do not perform the following steps unless you are familiar with hardware removal and replacement.

  • Page 17: Replacing The Processor

    1 processor 2 socket  Replacing the Processor   CAUTION: Ground yourself by touching an unpainted metal surface on the back of the computer.   CAUTION: When replacing the processor, do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket.  ...
  • Page 18 1 alignment post 2 tab 3 processor cover 4 release lever 5 processor 6 processor cover notch   8. Clean the thermal grease from the bottom of the heat-sink.   CAUTION: Ensure that you apply new thermal grease. New thermal grease is critical for ensuring adequate thermal bonding, which is a requirement for optimal processor operation.

  • Page 19: Removing Hard Drive(S)

    Do not operate your computer with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed.   CAUTION: 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.  Hard Drive(s)  ...

  • Page 20: Replacing The Hard Drive

    primary hard-drive assembly data cable power cable screws (2) Secondary Hard Drive secondary hard-drive assembly data cable power cable screws (2)   7. Remove the two screws (one on each side) that secure the hard-drive brackets to the hard-drive.   8.

  • Page 21: Removing The Optical Drive

      8. If you are replacing the secondary hard-drive: a.  Connect the power cable to the primary and secondary hard-drives. b.  Connect the data cable to the secondary hard-drive.   9. Replace the computer cover (see Replacing the Computer Cover).  ...

  • Page 22: Replacing The Optical Drive

    power cable data cable secondary optical-drive screws (2)   8. Set aside the optical drive in a secure location.   Replacing the Optical Drive   1. Follow the instructions in Before You Begin.   2. Remove the screw from the old optical drive and insert it in the new optical drive. screw  ...
  • Page 23 1 break-away metal plate   4. Gently slide the optical drive into the optical drive bay through the front of the computer.   5. Align the screw holes on the optical drive with the screw holes on the chassis.   6.

  • Page 24: Chassis Fan

    Do not operate your computer with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed.   CAUTION: 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.  Chassis Fan  ...
  • Page 25   4. Connect the chassis fan cable to the system board connector, FAN_SYS1 (see System Board Components).   5. Replace the computer cover (see Replacing the Computer Cover).  Processor Fan and Heat-Sink Assembly WARNING: Despite having a plastic shield, the processor fan and heat-sink assembly may be very hot during normal operation. Ensure that it has had sufficient time to cool before you touch it.
  • Page 26 7. Connect the processor fan cable to the system board connector, FAN_CPU (see System Board Components).   8. Replace the computer cover (see Replacing the Computer Cover).   9. Connect your computer and devices to electrical outlets, and turn them on. Back to Contents Page  ...

  • Page 27: Removing The Front I/O Panel

    Do not operate your computer with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed.   CAUTION: 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.  Removing the Front I/O Panel NOTE: Make note of the routing of all cables as you remove them so that you can re-route them correctly when installing the new front I/O panel.
  • Page 28   1. Follow the instructions in Before You Begin.   2. Align and slide the front I/O panel clamps into the front I/O panel clamp slots.   3. Replace the two screws that secure the I/O panel to the front panel.  ...

  • Page 29: Removing The Memory Module(S)

    If you remove the original memory module(s) from your compute during a memory upgrade, keep them seperate from any new memory module(s) that you may have, even if you purchased the new memory module(s) from Dell. If possible, do not pair an original memory module with a new memory module.
  • Page 30 cutouts (2) notch memory module   CAUTION: To avoid damage to the memory module, press the memory module straight down into the connector while you apply equal force to each end of the memory module.   4. Insert the memory module into the connector until the memory module snaps into position. If you insert the memory module correctly, the securing clips snap into the cutouts at each end of the memory module.

  • Page 31: Power Supply

    Do not operate your computer with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed.   CAUTION: 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.  Removing the Power Supply  ...
  • Page 32   4. Replace the four screws that secure the power supply to the chassis.   5. Connect the DC power cables to the system board and drives (see System Board Components).   6. Replace the computer cover (see Replacing the Computer Cover).

  • Page 33: Power Button Module

    Do not operate your computer with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed.   CAUTION: 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.  Removing the Power Button Module  ...
  • Page 34   3. Connect the power button module cable to the system board connector, LEDH1 (see System Board Components).   4. Replace the front bezel (see Replacing the Front Bezel).   5. Replace the computer cover (see Replacing the Computer Cover).  ...

  • Page 35: Removing The System Board

    Do not operate your computer with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed.   CAUTION: 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.  Removing the System Board  ...

  • Page 36: Replacing The System Board

    Replacing the Processor Fan and Heat-Sink Assembly).   CAUTION: 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.   CAUTION: Ensure that the heat-sink assembly is correctly seated and secure.

  • Page 37: System Setup Options

    1. Turn on (or restart) your computer.   2. When the DELL logo is displayed, watch for the F2 prompt to appear and then press <F2> immediately. NOTE: The F2 prompt indicates that the keyboard has initialized. This prompt can appear very quickly, so you must watch for it, and then press <F2>.
  • Page 38 Displays the asset tag of the computer when the asset tag is present Asset Tag Processor Information Displays the processor type Processor Type Displays the L2 cache size L2 Cache Displays the L3 cache size L3 Cache Memory Information Indicates the amount of memory installed in MB Memory Installed Indicates the memory speed in MHz Memory Speed...

  • Page 39: Boot Sequence

    Changing Boot Sequence for the Current Boot You can use this feature to change the current boot sequence, for example, to boot from the CD/DVD/CD-RW drive to run the Dell Diagnostics from the Drivers and Utilities disc. On completion of diagnostic tests, the previous boot sequence is restored.

  • Page 40: Clearing Forgotten Passwords

    The computer must be disconnected from the electrical outlet to clear the password setting.   CAUTION: 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 41: Clearing Cmos Passwords

    The computer must be disconnected from the electrical outlet to clear the password setting.   CAUTION: 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 42: Technical Overview

    (such as a connector on your computer).   CAUTION: 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.  Inside View of Your Computer...
  • Page 43 power connector (ATX12V) processor socket processor fan connector memory module connector (FAN_CPU) (DIMM1) memory module connector main power connector (ATX) (DIMM2) power button connector (LEDH1) 8 internal speaker connector (INTSPKR1) SATA drive connector (SATA 2) 10 chassis fan connector (FAN_SYS1) 11 SATA drive connector (SATA 1) 12 SATA drive connector (SATA 0) 13 SATA drive connector (SATA 3)
  • Page 44 Microsoft Corporation in the United States and/or other countries. Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. 2011 - 05     Rev. A00 Back to Contents Page...

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