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Dell Vostro 420 Service Manual

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See also: Setup and Features Information , User Manual
Dell™ Vostro™ 420/220/220s Service
Manual
Models: DCSCLF, DCSCMF, DCSCSF
w w w . d e l l . c o m | s u p p o r t . d e l l . c o m

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Summary of Contents for Dell Vostro 420

  • Page 1 Dell™ Vostro™ 420/220/220s Service Manual Models: DCSCLF, DCSCMF, DCSCSF w w w . d e l l . c o m | s u p p o r t . d e l l . c o m...
  • Page 2 Reproduction of this material in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. Trademarks used in this text: Dell, the DELL logo, and Vostro are trademarks of Dell Inc.; Intel is a registered trademark of Intel Corporation in the U.S. and other countries; Microsoft, Windows, Windows Vista, and the Windows Vista start button logo are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries;...

  • Page 3: Table Of Contents

    Dell Diagnostics ..When to Use the Dell Diagnostics Starting the Dell Diagnostics From Your .....
  • Page 4 ....Dell Support Utility ..Accessing the Dell Support Utility ... Clicking the Dell Support Icon .
  • Page 5 Removing a Drive Bay Break-Away Metal Plate ... . . Vostro 420 and Vostro 220 .....
  • Page 6 I/O Panel ......... Removing the I/O Panel .
  • Page 7 13 Coin-Cell Battery ....... Removing the Coin-Cell Battery ... . . Replacing the Coin-Cell Battery 14 System Board .
  • Page 8 ......BIOS ..Flashing the BIOS From the Hard Drive 17 Contacting Dell ....Contents...

  • Page 9: Troubleshooting

    Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. The power button light located on the front of the computer illuminates and blinks or remains solid to indicate different states: •...

  • Page 10: Beep Codes

    If your computer emits a series of beeps during start-up: 1 Write down the beep code. 2 Run the Dell Diagnostics to further identify the problem. (see "Dell Diagnostics" on page 13). Code (repetitive...
  • Page 11 • If available, install working memory of the same type into your computer (see "Replacing or Adding a Memory Module" on page 104). • If the problem persists, contact Dell (see "Contacting Dell" on page 137). Possible system board Contact Dell (see "Contacting Dell" on failure.

  • Page 12: System Messages

    U P P O R T complete the boot routine three consecutive times for the same error (see "Contacting Dell" on page 137). — Possible system board failure or RTC battery low. C H E C K S U M E R R O R C M O S Replace the battery (see "Replacing the Coin-Cell Battery"...

  • Page 13: Dell Diagnostics

    If you experience a problem with your computer, perform the checks in this section, and then run the Dell Diagnostics before contacting Dell for assistance. Start the Dell Diagnostics from your hard drive or from the Drivers and Utilities disc provided with your computer. NOTE: The Drivers and Utilities disc is optional and may not ship with your computer.
  • Page 14 Diagnostics Main Menu" on page 16). NOTE: Write down any error codes and problem descriptions exactly as they appear and follow the instructions on the screen. 8 After all tests have completed, close the test window to return to the Dell Diagnostics Main Menu. Troubleshooting...

  • Page 15: Starting The Dell Diagnostics From The Drivers And Utilities Disc

    9 Close the Main Menu window to exit the Dell Diagnostics and restart the computer. Starting the Dell Diagnostics From the Drivers and Utilities Disc Before running the Dell Diagnostics, enter the system setup program (see "System Setup Program" on page 129) to review your computer’s configuration information, and ensure that the device you want to test is displayed in the system setup program and is active.

  • Page 16: Dell Diagnostics Main Menu

    Write down any error codes and problem descriptions exactly as they appear and follow the instructions on the screen. 10 After all tests have completed, close the test window to return to the Dell Diagnostics Main Menu. 11 Close the Main Menu window to exit the Dell Diagnostics and restart the computer.
  • Page 17 Write down the error code and problem description exactly as it appears and follow the instructions on the screen. If you cannot resolve the problem, contact Dell (see "Contacting Dell" on page 137).

  • Page 18: Solving Problems

    If an error message occurs in a program, see the program’s documentation. NOTE: The procedures in this document were written for the Windows default view, so they may not apply if you set your Dell™ computer to the Windows Classic view. Troubleshooting...

  • Page 19: Battery Problems

    A R D W A R E R O U B L E S H O O T E R page 12. — See "Dell Diagnostics" on page 13. U N T H E E L L I A G N O S T I C S...
  • Page 20 Optical drive problems NOTE: High-speed optical drive vibration is normal and may cause noise, which does not indicate a defect in the drive or the media. NOTE: Because of different regions worldwide and different disc formats, not all DVD titles work in all DVD drives. D J U S T T H E I N D O W S V O L U M E C O N T R O L —...

  • Page 21: Error Messages

    If so, run the program that you want to use first. — Contact Dell (see "Contacting Dell" on P E R A T I N G S YS T E M N O T F O U N D page 137).

  • Page 22: Keyboard Problems

    D E V I C E IEEE 1394 "Contacting Dell" on page 137). F Y O U H A V E P R O B L E M S W I T H A N D E V I C E N O T P R O V I D E D B Y...

  • Page 23: Lockups And Software Problems

    For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. The computer does not start up H E C K T H E D I A G N O S T I C L I G H T S —...
  • Page 24 A program is designed for an earlier Windows operating system U N T H E R O G R A M O M P A T I B I L I T Y I Z A R D — Windows XP: The Program Compatibility Wizard configures a program so that it runs in an environment similar to non-XP operating system environments.

  • Page 25: Memory Problems

    • Run the Dell Diagnostics (see "Dell Diagnostics" on page 13). F Y O U E X P E R I E N C E O T H E R M E M O R Y P R O B L E M S —...

  • Page 26: Network Problems

    For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. — Ensure that the network cable is firmly H E C K T H E N E T W O R K C A B L E C O N N E C T O R inserted into the network connector on the back of the computer and the network jack.

  • Page 27: Power Problems

    For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. — See F T H E P O W E R L I G H T I S B L U E A N D T H E C O M P U T E R I S N O T R E S P O N D I N G "Power Lights"...

  • Page 28: Printer Problems

    Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. NOTE: If you need technical assistance for your printer, contact the printer’s manufacturer.

  • Page 29: Scanner Problems

    Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. NOTE: If you need technical assistance for your scanner, contact the scanner’s manufacturer.

  • Page 30: Sound And Speaker Problems

    Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. No sound from speakers NOTE: The volume control in MP3 and other media players may override the Windows volume setting.

  • Page 31: Video And Monitor Problems

    Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. NOTICE: If your computer came with a PCI graphics card installed, removal of the card is not necessary when installing additional graphics cards;...
  • Page 32 H E C K T H E D I A G N O S T I C L I G H T S — See "Power Lights" on page 9. — See the monitor documentation for instructions H E C K T H E M O N I T O R S E T T I N G S on adjusting the contrast and brightness, demagnetizing (degaussing) the monitor, and running the monitor self-test.

  • Page 33: Dell Technical Update Service

    2 Ensure that the Show icon on the taskbar option is checked. NOTE: If the Dell Support Utility is not available from the Start menu, go to support.dell.com and download the software. The Dell Support Utility is customized for your computing environment.

  • Page 34: Double-Clicking The Dell Support Icon

    Double-Clicking the Dell Support Icon Double-click the icon to manually check your computing environment, view frequently asked questions, access the help file for the Dell Support Utility, and view Dell Support settings. For more information about the Dell Support Utility, click the question mark (?) at the top of the Dell Support screen.

  • Page 35: Working On Your Computer

    Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.

  • Page 36: Turning Off Your Computer

    NOTICE: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables have connectors with locking tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect the cable.

  • Page 37: Inside View Of Your Computer

    Inside View of Your Computer Vostro™ 420 1 power supply 2 5.25-inch drive bays (3) 3 media card reader (optional) 4 I/O panel 5 3.5-inch hard drive bays (4) 6 chassis fan Working on Your Computer...
  • Page 38 Vostro 220 power supply 5.25-inch drive bays (2) media card reader (optional) I/O panel 3.5-inch hard drive bays (2) chassis fan Working on Your Computer...
  • Page 39 Vostro 220s ‘ 1 power supply 2 chassis fan 3 optical drive 4 media card reader (optional) 5 I/O panel 6 3.5-inch hard drive bays (2) Working on Your Computer...

  • Page 40: System Board Components

    System Board Components Vostro 420 Working on Your Computer...
  • Page 41 power connector processor heat memory module (PWR2) sink/fan assembly connectors (4) power (DIMM_1, DIMM_2, DIMM_3, DIMM_4) main power connector battery socket serial ATA 5.25-inch (PWR1) drive connector (SATA4) serial ATA hard drive serial ATA hard drive serial ATA hard drive connector (SATA3) connector (SATA2) connector (SATA1)
  • Page 42 Vostro 220 Working on Your Computer...
  • Page 43 power connector processor heat memory module (PWR2) sink/fan assembly connectors (2) power main power connector serial ATA drive serial ATA drive (PWR1) connector (SATA2) connector (SATA1) serial ATA drive serial ATA drive battery socket connector (SATA3) connector (SATA0) 10 front I/O panel 11 USB1 system board 12 USB2 system board connector...
  • Page 44 Vostro 220s CLS_CMOS Working on Your Computer...

  • Page 45: After Working On Your Computer

    power connector processor heat memory module (PWR2) sink/fan assembly connectors (2) power main power connector serial ATA drive serial ATA drive (PWR1) connector (SATA2) connector (SATA1) serial ATA drive serial ATA drive battery socket connector (SATA3) connector (SATA0) 10 front I/O panel 11 USB1 system board 12 USB2 system board connector...
  • Page 46 5 Verify that the computer works correctly by running the Dell Diagnostics. See your Setup and Quick Reference Guide for help running Dell Diagnostics. Working on Your Computer...

  • Page 47: Computer Cover

    1 ft (30 cm) of desktop space. NOTICE: The procedure for removing and replacing the computer cover is identical for the Vostro 420, Vostro 220, and Vostro 220s computers; the illustration provided is for example only and may not represent your particular computer precisely.

  • Page 48: Replacing The Computer Cover

    handle computer cover front of computer, bezel 4 Release the computer cover by grasping the handle while sliding the cover away from the front of the computer and lifting it up. Replacing the Computer Cover 1 Ensure that all cables are connected and folded out of the way. 2 Ensure that no tools or extra parts are left inside the computer.
  • Page 49 4 Holding the cover at a slight angle, slide it toward the front of the computer until the metal clips inside the cover grip and attach securely to the chassis frame beside the front bezel. 5 Ensure that the cover is seated and aligned correctly. 6 Replace and tighten the two thumbscrews that secure the computer cover.
  • Page 50 Computer Cover...

  • Page 51: Bezel

    NOTICE: The procedure for removing and replacing the bezel is identical for the Vostro 420, Vostro 220, and Vostro 220s computers; the illustrations provided are for example only and may not represent your particular computer precisely. Removing the Bezel 1 Follow the procedures in "Before Working on Your Computer"...
  • Page 52 clips (4) bezel Bezel...

  • Page 53: Replacing The Bezel

    Replacing the Bezel 1 With the computer still on its side, align and insert the bezel hooks into the slots along one edge of the front of the computer. 2 Rotate the bezel toward the computer until the clips snap into place on the opposite edge of the front of the computer 3 Perform the steps in the procedure "After Working on Your Computer"...
  • Page 54 Bezel...

  • Page 55: Chassis Support Bracket

    CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
  • Page 56 Vostro 220s chassis support bracket flange screw cable clip tabs (2) slots (2) Chassis Support Bracket...

  • Page 57: Replacing The Chassis Support Bracket

    Replacing the Chassis Support Bracket 1 Holding the bracket at an angle, insert the tabs on one end of the bracket into the slots in the chassis. 2 While holding the bracket slightly raised, slide any cables as appropriate into the cable clip for storage. 3 Lower the other end of the bracket to engage the remaining tab.
  • Page 58 chassis support bracket flange screw cable clip slots (2) tabs (2) 5 Perform the steps in the procedure "After Working on Your Computer" on page 45. Chassis Support Bracket...

  • Page 59: Pci And Pci Express Cards

    NOTICE: The procedure for removing and replacing PCI and PCI Express cards is identical (except where noted) for the Vostro 420, Vostro 220, and Vostro 220s computers; the illustrations provided are for example only and may not represent your particular computer precisely.

  • Page 60: Installing A Pci Or Pci Express Card

    7 If you are removing the card to replace it with a new card, proceed to step 5 in "Installing a PCI or PCI Express Card" on page 60. Otherwise, proceed to step 8. 8 If you are removing the card permanently, install a filler bracket in the empty card-slot opening at the back of the computer, using the screw you removed in step 5 to secure the filler bracket to the chassis.
  • Page 61 See the documentation that came with the card for information on configuring the card, making internal connections, or otherwise customizing it for your computer. CAUTION: Some network adapters automatically start the computer when they are connected to a network. To guard against electrical shock, be sure to unplug your computer from its electrical outlet before installing any cards.
  • Page 62 1 PCI Express x16 card 2 PCI Express x16 card slot 3 securing tab 4 PCI Express x1 card slot 5 PCI Express x1 card 6 securing slot 7 Align the card in the connector and press down firmly. Ensure that the card is fully seated in the connector slot.

  • Page 63: Configuring Your Computer After Removing Or Installing A Pci Or Pci Express Card

    Configuring Your Computer After Removing or Installing a PCI or PCI Express Card NOTE: For information on installing drivers and software for your card, see the documentation that shipped with the card. Type of Card Installed Removed Sound Card Enter the system setup Enter the system setup program (see "System Setup program (see "System Setup...
  • Page 64 PCI and PCI Express Cards...

  • Page 65: Drives

    NOTICE: The procedure for removing and replacing drives is identical (except where noted) for the Vostro 420, Vostro 220, and Vostro 220s computers; the illustrations provided are for example only and may not represent your particular computer precisely.
  • Page 66 Slide the drive out of the slot, toward the back of the computer. Vostro™420 screws (4) hard drive power cable data cable Drives...
  • Page 67 Vostro 220 screws (4) hard drive power cable data cable 6 For the Vostro 220s: Raise and hold the hard-drive release latch. Slide the drive partway out of the bay, rotate the back of the drive upward until the drive is perpendicular to the drive cage, and guide the screws through the cutaway channels in the drive cage until you can lift the drive away from the computer.
  • Page 68 Vostro 220s 1 cutaway channels (2) 2 hard-drive release latch 3 hard drive 4 screw guides (4) 5 power cable 6 data cable 7 If you are installing a replacement drive, skip to step 3 in "Replacing or Adding a Hard Drive" on page 69. If you are removing this drive permanently and the drive bay is to remain empty, proceed to step 8.

  • Page 69: Replacing Or Adding A Hard Drive

    8 Disconnect the data cable from the system board (see "System Board Components" on page 40) and remove the cable from the computer. 9 Follow the procedure in "After Working on Your Computer" on page 45. 10 When you restart your computer, check the drive configuration information in the system setup program: Enter the system setup program (see "System Setup Program"...
  • Page 70 (4) 5 For the Vostro 420 and Vostro 220: Slide the hard drive into the hard drive bay. Align the holes on the side of the hard drive with the holes in the drive cage, and install the screws to secure the hard drive in the bay.
  • Page 71 Vostro 420 screws (4 total: 2 screws to guide hard drive drive into slot; 2 screws to secure drive in slot) power cable data cable Drives...
  • Page 72 Vostro 220 1 screws (4) 2 hard drive 3 power cable 4 data cable 6 Connect the power and data cables to the back of the drive. NOTICE: The connectors are "keyed" for correct insertion; that is, a notch or a missing pin on one connector fits with a tab or a filled-in hole on the other connector.

  • Page 73: Media Card Reader

    CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
  • Page 74 3 USB interface cable 4 Disconnect the USB cable from the back of the media card reader. 5 For the Vostro 420 and Vostro 220, remove the two screws securing the device to the drive cage. For the Vostro 220s, lift the release latch that secures both the optical drive and the 3.5-inch device in their respective drive cages.
  • Page 75 release latch optical drive bay media card reader 6 Slide the device out through the front of the computer. 7 If you are installing a replacement device, skip to step 5 in "Replacing or Adding a Media Card Reader" on page 77. If you are removing the device permanently and the drive bay is to remain empty, proceed to step 8.
  • Page 76 Holding the front-panel insert at an angle, insert one end into the drive bay opening. Push the other end of the insert into the opening until it fits into place. NOTE: To comply with FCC regulations, install the 3.5-inch front-panel insert whenever the device is permanently removed from the computer.

  • Page 77: Replacing Or Adding A Media Card Reader

    inside of bezel cover for empty bay slot in bezel opening 12 Replace the bezel (see "Replacing the Bezel" on page 53). 13 Follow the procedure in "After Working on Your Computer" on page 45. 14 Enter the system setup program (see "System Setup Program" on page 129 for instructions) and update the drive settings.
  • Page 78 7 Gently slide the device into the bay from the front of the computer. 8 For the Vostro 420 and Vostro 220: Align the screw holes in the device with the screw hole and slot in the drive cage.
  • Page 79 9 For the Vostro 220s, push the release latch down to secure the optical drive and the 3.5-inch device in their respective drive cages. NOTE: Install the media card reader into the drive bay before you connect the USB interface cable to the back of the device. 10 Connect the USB interface cable to the back of the device.

  • Page 80: Optical Drive

    CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
  • Page 81 8 Disconnect the data cable from the system board (see "System Board Components" on page 40), and remove the cable from the computer. 9 For the Vostro 420 and Vostro 220, use two screws to attach a 5.25-inch front-panel insert to the front of the empty bay.

  • Page 82: Replacing Or Adding An Optical Drive

    screws (2) 5.25-inch front-panel insert NOTE: To comply with FCC regulations, install the 5.25-inch front-panel insert whenever an optical drive is permanently removed from the computer. 10 Replace the bezel (see "Replacing the Bezel" on page 53). 11 Follow the procedure in "After Working on Your Computer" on page 45. 12 Enter the system setup program (see "System Setup Program"...
  • Page 83 5 Remove the optical drive from its packaging. 6 Gently slide the optical drive into the bay from the front of the computer. 7 For the Vostro 420 and Vostro 220: Align the screw slots in the optical drive with the screw slots on the drive cage.
  • Page 84 1 screws (2) 2 screw holes 3 optical drive 4 data cable 5 power cable 10 Replace the bezel (see "Replacing the Bezel" on page 53). 11 Follow the procedure in "After Working on Your Computer" on page 45. 12 See the documentation that came with the drive for instructions on installing any software required for drive operation.

  • Page 85: Removing A Drive Bay Break-Away Metal Plate

    Removing a Drive Bay Break-Away Metal Plate Vostro 420 and Vostro 220 Vostro 420 3.5-inch bay break-away metal plate To remove the 3.5-inch bay break-away metal plate, insert the tip of a Phillips screwdriver into the slot on the plate, and rotate the screwdriver outwards for leverage to twist and ultimately break the two metal tabs that attach the plate to the chassis.

  • Page 86: Vostro 220S

    still a break-away plate or whether it is attached with two screws. Remove the two screws, if installed, or use the Phillips screwdriver to break away the plate, as appropriate. 5.25-inch bay metal plate (for empty optical-drive bay NOTE: Store 5.25-inch metal plates for reuse should you decide to permanently remove an optical drive in the future.
  • Page 87 Vostro 220s 3.5-inch bay break-away metal plate Drives...
  • Page 88 Drives...

  • Page 89: O Panel

    NOTICE: The procedure for removing and replacing the I/O panel is identical (except where noted) for the Vostro 420, Vostro 220, and Vostro 220s computers; the illustrations provided are for example only and may not represent your particular computer precisely.
  • Page 90 8 Ease the I/O panel away from the computer as you guide the cables through the bays, holes, and front-panel opening. Vostro 420 1 front-panel opening 2 I/O panel and cables 3 screw I/O Panel...

  • Page 91: Replacing The I/O Panel

    Vostro 220s 1 front-panel opening 2 I/O panel and cables 3 screw Replacing the I/O Panel NOTICE: Take care not to damage the cable connectors and the cable routing clip(s) (if present) when sliding the I/O panel into the computer. 1 Route the I/O panel cables into the chassis through the I/O panel opening, and guide them through the various holes and bays.
  • Page 92 5 For the Vostro 220s: Replace the chassis support bracket (see "Replacing the Chassis Support Bracket" on page 57). Replace any hard drives in the hard drive cage (see "Replacing or Adding a Hard Drive" on page 69) that you removed in step 5 of "Removing the I/O Panel"...

  • Page 93: Fan

    NOTICE: The procedure for removing and replacing the chassis fan is identical (except where noted0 for the Vostro 420, Vostro 220, and Vostro 220s computers; the illustrations provided are for example only and may not represent your particular computer precisely.
  • Page 94 Vostro 420 chassis fan system board power connector screws (4)
  • Page 95 Vostro 220 chassis fan system board power connector screws (4)
  • Page 96 Vostro 220s system board power connector chassis fan screw...

  • Page 97: Replacing The Chassis Fan

    Replacing the Chassis Fan 1 For the Vostro 220s: Lower the fan into the chassis such that the screw hole in the fan is offset and slightly forward of the screw hole in the fan mount on the chassis. Press the fan into the side of the chassis, and then slide it toward the back of the computer until it sets against the stops.

  • Page 99: Processor Heat Sink/Fan Assembly

    NOTICE: The procedure for removing and replacing the processor heat sink/fan assembly is identical for the Vostro 420, Vostro 220, and Vostro 220s computers; the illustration provided is for example only and may not represent your particular computer precisely.
  • Page 100 1 Phillips screwdriver 2 heat sink/fan assembly 3 heat sink/fan cable 4 system board fan connector 5 screw holes with rubber bushings (4) 6 captive screws (4) Processor Heat Sink/Fan Assembly...

  • Page 101: Replacing The Processor Heat Sink/Fan Assembly

    Replacing the Processor Heat Sink/Fan Assembly NOTICE: Unless a new heat sink is required for the new processor, reuse the original heat sink/fan assembly when you replace the processor. 1 Apply thermal solution to the heat sink as needed. 2 Align the four captive screws on the heat sink/fan assembly with the holes and rubber bushings on the system board.
  • Page 102 1 Phillips screwdriver 2 heat sink/fan assembly 3 heat sink/fan cable 4 system board fan connector 5 screw holes with rubber bushings 6 captive screws (4) 3 Tighten the captive screws evenly to secure the heat sink/fan assembly to the system board. NOTICE: Ensure that the assembly is correctly seated and secure.

  • Page 103: Memory Module(S)

    Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing Memory Modules 1 Follow the procedures in "Before Working on Your Computer" on page 35.

  • Page 104: Replacing Or Adding A Memory Module

    If you remove your original memory modules from the computer during a memory upgrade, keep them separate from any new modules, even if you purchased the new modules from Dell. If possible, do not pair an original memory module with a new memory module. Otherwise, your computer may not start properly.
  • Page 105 1 Align the notch on the bottom of the module with the crossbar in the connector. cutouts (2) memory module notch crossbar NOTICE: To avoid damage to the memory module, press the module straight down into the connector while you apply equal force to each end of the module. 2 Insert the module into the connector until the module snaps into position.
  • Page 106 ® 6 Right-click the My Computer icon on your Windows desktop and click Properties. 7 Click the General tab. 8 To verify that the memory is installed correctly and being recognized by the computer, check the amount of memory (RAM) listed. Memory Module(s)

  • Page 107: Power Supply

    NOTICE: The procedure for removing and replacing the power supply is identical (except where noted) for the Vostro 420, Vostro 220, and Vostro 220s computers; the illustrations provided are for example only and may not represent your particular computer precisely.
  • Page 108 7 Press down on the power supply retention clips. screws (4) (only 3 screws for Vostro power supply 220s) 8 Slide the power supply toward the front of the computer and lift it out. Power Supply...

  • Page 109: Replacing The Power Supply

    Replacing the Power Supply 1 Set the replacement power supply into place. 2 Replace and tighten the screws that secure the power supply to the back of the computer chassis. CAUTION: Failure to replace and tighten all screws may cause electrical shock as these screws are a key part of the grounding system.

  • Page 110: Dc Power Supply Connectors

    Slide the optical drive back into the drive bay. Replace the chassis support bracket (see "Replacing the Chassis Support Bracket" on page 57). 5 Follow the procedure in "After Working on Your Computer" on page 45. DC Power Supply Connectors Vostro 420 Power Supply...
  • Page 111 Vostro 220 Power Supply...

  • Page 112: Dc Power Supply Connector Pin Assignments

    Vostro 220s DC Power Supply Connector Pin Assignments DC Power Connector P1 13 14 15 16 17 18 19 20 21 22 23 24 9 10 11 12 Pin Number Signal name Wire Color Wire Size 3.3 V Orange 20 AWG 3.3 V Orange 20 AWG...
  • Page 113 Pin Number Signal name Wire Color Wire Size Black 20 AWG 20 AWG Black 20 AWG Gray 22 AWG 5 V AUX Purple 20 AWG +12 V Yellow 20 AWG +12 V Yellow 20 AWG 3.3 V Orange 20 AWG 3.3 V Orange 20 AWG...
  • Page 114 Pin Number Signal Name 18-AWG Wire Black +12 VADC Yellow +12 VADC Yellow DC Power Connectors P3, P4, P5, P6, P7, and P8 Pin Number Signal name 18-AWG Wire +3.3 VDC Orange Black +5 VDC Black +12 VBDC White DC Power Connector P9 Pin Number Signal Name 22-AWG Wire +5 VDC...
  • Page 115 DC Power Connector P10 Pin Number Signal Name 22-AWG Wire +12 VDC Yellow +12 VDC Yellow +12 VDC Yellow Black Black Black Power Supply...
  • Page 116 Power Supply...

  • Page 117: Coin-Cell Battery

    Discard used batteries according to the manufacturer’s instructions. NOTICE: The procedure for removing and replacing the coin-cell battery is identical (except where noted) for the Vostro 420, Vostro 220, and Vostro 220s computers. Removing the Coin-Cell Battery 1 Record all the screens in the system setup program so that you can restore the correct settings in step 4 of "Replacing the Coin-Cell Battery"...

  • Page 118: Replacing The Coin-Cell Battery

    release latch battery (positive side) 5 Carefully press the release latch away from the battery to allow the battery to pop up from the socket. 6 Remove the battery from the system and properly dispose of the battery. Replacing the Coin-Cell Battery 1 Insert the new battery into the socket with the side labeled "+"...

  • Page 119: System Board

    NOTICE: The procedure for removing and replacing the system board is identical (except where noted) for the Vostro 420, Vostro 220, and Vostro 220s computers; the illustration provided is for example only and may not represent your particular computer precisely.
  • Page 120 Remove the memory modules from the system board (see "Replacing or Adding a Memory Module" on page 104) and place them individually into antistatic packaging. Remove the processor from the system board (see "Removing the Processor" on page 125) and place it into antistatic packaging. 9 Disconnect the chassis fan cable from the system board.

  • Page 121: Replacing A System Board

    system board screws (9) Replacing a System Board 1 Align the holes of the system board with the screw holes in the chassis, ensuring that the back panel connectors are properly aligned in the openings on the back of the chassis. System Board...
  • Page 122 2 Replace the screws that secure the system board to the chassis. Avoid over-tightening the screws. CAUTION: Failure to replace and tighten all screws properly may not provide adequate grounding of the system board and result in system failures. 3 Connect the chassis fan cable to the system board. 4 If the system board is being replaced with a new system board: Install the memory modules onto the system board (see "Replacing or Adding a Memory Module"...
  • Page 123 Install the processor onto the system board (see "Replacing the Processor" on page 126). Install the processor heat sink/fan assembly (see "Replacing the Processor Heat Sink/Fan Assembly" on page 101). 5 Connect the power supply cables to the system board (see "System Board Components"...
  • Page 124 System Board...

  • Page 125: 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 information about contacting Dell, see "Contacting Dell" on page 137. Removing the Processor 1 Follow the procedures in "Before Working on Your Computer" on page 35.

  • Page 126: Replacing The Processor

    processor cover processor socket release lever retention hook NOTICE: 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. 6 Lift the processor to remove it from the socket and place it into antistatic packaging.
  • Page 127 NOTICE: Socket pins are delicate. To avoid damage, ensure that the processor is aligned properly with the socket, and do not use excessive force when you install the processor. Be careful not to touch or bend the pins on the system board. processor cover processor processor socket...
  • Page 128 NOTICE: To avoid damage, ensure that the processor aligns properly with the socket, and do not use excessive force when you press the processor into the socket. 5 Press the processor lightly into the socket until it is fully seated. 6 Lower the processor cover.

  • Page 129: System Setup Program

    Certain changes can make your computer work incorrectly. Entering the System Setup Program 1 Turn on (or restart) your computer. 2 When the blue DELL™ logo is displayed, you must watch for the F2 prompt to appear. 3 Once this F2 prompt appears, press <F2> immediately.

  • Page 130: System Setup Program Screens

    System Setup Program Screens The system setup program screen displays current or changeable configuration information for your computer. Information on the screen is divided into three areas: the options list, active options field, and key functions. Options List — This Option Field —...
  • Page 131 System Info Lists system information such as the computer name, and System Info other system-specific information. Shows the BIOS version number and date information. BIOS Info Displays computer service tag number for support Service Tag purposes. Identifies whether the computer’s processor supports CPU Info Hyper-Threading and lists the processor type, processor bus speed, processor ID, clock speed, and L2 cache.
  • Page 132 Used to set the device priority of hard drives. The items Hard Disk Boot displayed are dynamically updated according to the hard Priority drives detected. Used to set the device priority of removable devices such a Removable Drives media card readers. The items displayed are dynamically Boot Priority updated according to the removable devices connected.

  • Page 133: Boot Sequence

    You can use this feature, for example, to tell the computer to boot from the CD drive so that you can run the Dell Diagnostics on the Dell Drivers and Utilities disc, but you want the computer to boot from the hard drive when the diagnostic tests are complete.

  • Page 134: Changing Boot Sequence For Future Boots

    Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance 1 Follow the procedures in "Before Working on Your Computer" on page 35.

  • Page 135: Clearing Cmos Settings

    Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance 1 Follow the procedures in "Before Working on Your Computer" on page 35.

  • Page 136: Bios

    Flashing the BIOS From the Hard Drive 1 Turn on the computer. 2 Locate the latest BIOS update file for your computer at support.dell.com. 3 Click Download Now to download the file. 4 If the Export Compliance Disclaimer window appears, click Yes, I Accept this Agreement.

  • Page 137: Contacting Dell

    3 Click Contact Us on the left side of the page. 4 Select the appropriate service or support link based on your need. 5 Choose the method of contacting Dell that is convenient for you. Contacting Dell...
  • Page 138 Contacting Dell...

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