Gateway 450Sx4 Service Manual
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Gateway 450Sx4 Service Manual

Gateway 450Sx4 Service Manual

Gateway notebook computers
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450SX4
Service Guide

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Summary of Contents for Gateway 450Sx4

  • Page 1 450SX4 Service Guide...

  • Page 3: Table Of Contents

    Contents Replacing Gateway 450SX4 Components ......1 Identifying your notebook model ........2 Identifying components .

  • Page 5: Replacing Gateway 450Sx4 Components

    © 2003 Gateway, Inc. All rights reserved. Gateway, Gateway Country, the Gateway stylized logo, and the black-and-white spot design are trademarks or registered trademarks of Gateway, Inc. in the United States and other countries. All other brands and product names are trademarks or registered trademarks of their respective...
  • Page 6 Thank you for purchasing this Factory Service Manual CD/DVD from servicemanuals4u.com. Please check out our eBay auctions for more great deals on Factory Service Manuals: servicemanuals4u...

  • Page 7: Identifying Your Notebook Model

    Replacing Gateway 450SX4 Components Identifying your notebook model The label on the bottom of your notebook contains information that identifies your notebook model and its features. Gateway model number Warning It is important that you use the correct service guide for your notebook.

  • Page 8: Identifying Components

    Contents. LCD panel assembly (see page 52) Keyboard cover (see page 30) Keyboard (see page 34) LED indicator panel (see page 43) Palm rest assembly (see page 57) Cooling assembly (see page 47) System board (see page 69) www.gateway.com...

  • Page 9: Preparing Your Work Space

    Replacing Gateway 450SX4 Components Preparing your work space Before performing maintenance on your notebook, make sure that your work space and your notebook are correctly prepared. ■ Wear a grounding (ESD) wrist strap, and use a grounded or dissipative work mat.

  • Page 10: Preventing Static Electricity Discharge

    ■ Unplug the power cord and the modem and network cables. ■ Remove the main and optional secondary batteries. For more information, see “Removing the batteries” on page 8. ■ Disconnect all peripheral devices and remove any PC Cards. www.gateway.com...

  • Page 11: Preparing Your Notebook

    Replacing Gateway 450SX4 Components Before working with notebook components, follow these guidelines: ■ Avoid static-causing surfaces such as carpeted floors, plastic, and packing foam. ■ Remove components from their antistatic bags only when you are ready to use them. Do not lay components on the outside of antistatic bags because only the inside of the bags provide electrostatic protection.

  • Page 12: Disconnecting From The Port Replicator

    Disconnecting from the port replicator Disconnecting from the port replicator To separate your notebook from the port replicator: Press down on both docking release latches. The notebook will spring up slightly. Lift the notebook off of the port replicator. www.gateway.com...

  • Page 13: Removing The Batteries

    Replacing Gateway 450SX4 Components Removing the batteries Removing the main battery To remove the main battery: Disconnect the AC adapter and modem and network cables and prepare your notebook by following the instructions in “Preparing your notebook” on page 6.

  • Page 14: Removing The Optional Secondary Battery

    “Disconnecting from the port replicator” on page 7. Turn your notebook over so the bottom is facing up. Slide and hold the bay module latch closest to the back of the notebook. Slide the other bay module release latch. The battery moves out slightly. www.gateway.com...
  • Page 15 Replacing Gateway 450SX4 Components Slide the battery out. www.gateway.com...

  • Page 16: Adding Or Replacing Memory Modules

    Adding or replacing memory modules Adding or replacing memory modules Tools you need to complete this task: Phillips #0 screwdriver Important Use only memory modules designed for the Gateway 450SX4 Memory www.gateway.com...
  • Page 17 Replacing Gateway 450SX4 Components To add or replace memory modules: Disconnect the AC adapter and modem and network cables and prepare your notebook by following the instructions in “Preparing your notebook” on page 6. Disconnect your notebook from the optional port replicator by following the instructions in “Disconnecting from the port replicator”...
  • Page 18 Adding or replacing memory modules Lift the screw side of the cover upward. www.gateway.com...
  • Page 19 Replacing Gateway 450SX4 Components Slide the cover out. www.gateway.com...
  • Page 20 Adding or replacing memory modules If you are removing a module, gently press outward on the clip at each end of the memory module until the module tilts upward. www.gateway.com...
  • Page 21 Replacing Gateway 450SX4 Components Pull the memory module out of the slot. www.gateway.com...
  • Page 22 If the module does not fit, make sure that the notch in the module lines up with the tab in the memory slot. Gently press the module down until it clicks into place. Replace the memory bay cover and tighten the captive screw. www.gateway.com...

  • Page 23: Replacing The 802.11 Mini Pci Card

    Replacing the 802.11 mini PCI card Caution By law, only approved wireless modules provided by Gateway, or a Gateway authorized representative, explicitly for your Gateway 450SX4 may be installed in this notebook. Tools you need to complete this task: Phillips #0 screwdriver To replace the 802.11 mini PCI card:...
  • Page 24 Replacing the 802.11 mini PCI card Loosen the captive screw that secures the mini PCI cover. (The screw cannot be removed.) Captive screw Lift the screw side of the cover upward. www.gateway.com...
  • Page 25 Replacing Gateway 450SX4 Components Slide the cover out. Unplug the two antenna cables. www.gateway.com...
  • Page 26 Replacing the 802.11 mini PCI card Move the antenna wires out of the way, then press outward on the clip at each side of the module until the module tilts upward. Pull the module out of the slot. www.gateway.com...
  • Page 27 Replacing Gateway 450SX4 Components Hold the new module at a 30-degree angle and press it into the empty slot. This module is keyed so it can only be inserted in one direction. If the module does not fit, make sure that the notch in the module lines up with the tab in the module slot.
  • Page 28 Replacing the 802.11 mini PCI card Reattach the black antenna cable to the connector labelled MAIN or M, then reattach the light gray antenna cable to the connector labelled AUX or A. Replace the mini PCI cover, then tighten the captive screw. www.gateway.com...

  • Page 29: Replacing The Hard Drive Kit

    Replacing Gateway 450SX4 Components Replacing the hard drive kit Tools you need to complete this task: Phillips #0 screwdriver Screws removed during this task: 1 chrome 2.5 × 4 mm (hard drive kit) To replace the hard drive kit: Disconnect the AC adapter and modem and network cables and prepare your notebook by following the instructions in “Preparing your notebook”...
  • Page 30 Replacing the hard drive kit Remove the hard drive kit screw. Screw Slide the old hard drive kit out of your notebook. www.gateway.com...
  • Page 31 Replacing Gateway 450SX4 Components Slide the new hard drive kit into your notebook. Replace the screw that secures the hard drive kit to your notebook. www.gateway.com...

  • Page 32: Replacing The Hard Drive In The Hard Drive Kit

    Turn your notebook over so the bottom is facing up. Remove the main and optional secondary batteries by following the instructions in “Removing the batteries” on page 8. Remove the hard drive kit by following the instructions in “Replacing the hard drive kit” on page 24. www.gateway.com...
  • Page 33 Replacing Gateway 450SX4 Components Remove the two screws that secure the hard drive to the hard drive kit bracket. Screw Screw Remove the bracket from the old drive. www.gateway.com...
  • Page 34 Plastic strip Replace the two screws that secure the bracket to the drive. Slide the hard drive kit into your notebook. Replace the screw that secures the hard drive kit to your notebook. www.gateway.com...

  • Page 35: Replacing The Keyboard Cover

    Replacing Gateway 450SX4 Components Replacing the keyboard cover Tools you need to complete this task: Flat-blade driver - OR - Scribe or non-marring tool To replace the keyboard cover: Disconnect the AC adapter and modem and network cables and prepare your notebook by following the instructions in “Preparing your notebook”...
  • Page 36 Insert the small flat-blade screwdriver or non-marring tool under the bottom right corner of the keyboard cover and gently pry it up. Important Inserting a piece of cloth between the screwdriver and keyboard and notebook case will help prevent damage to your notebook. www.gateway.com...
  • Page 37 Replacing Gateway 450SX4 Components Pull the cover off your notebook. You will hear small snapping sounds as the cover comes away from your notebook. Be careful not to break off the tabs found on the left end of the cover.
  • Page 38 The cover should be flat all the way across. Press Press Press Warning If the cover is not correctly replaced, your notebook could be damaged when you try to close the LCD panel. www.gateway.com...

  • Page 39: Replacing The Keyboard

    Replacing Gateway 450SX4 Components Replacing the keyboard Tools you need to complete this task: Flat-blade driver - OR - Scribe or non-marring tool Phillips #0 screwdriver Screws removed during this task: 4 chrome 2.5 × 2.5 mm (keyboard) To remove the keyboard: Disconnect the AC adapter and modem and network cables and prepare your notebook by following the instructions in “Preparing your notebook”...
  • Page 40 Replacing the keyboard Remove the four keyboard screws that secure the keyboard to your notebook. Screws www.gateway.com...
  • Page 41 Replacing Gateway 450SX4 Components Lift the back edge of the keyboard, then slowly rotate it toward you so it lies keys-down on top of your notebook. Be careful not to damage the LCD panel. www.gateway.com...
  • Page 42 Insert the keyboard plug, on the end of the keyboard cable, onto the keyboard connector. Important The outside of the keyboard plug goes around the keyboard connector. The plug is correctly oriented if the cable is not twisted. Rotate the keyboard toward the LCD panel until the keyboard is almost face-up. www.gateway.com...
  • Page 43 Replacing Gateway 450SX4 Components Insert the four tabs located on the front edge of the keyboard into the corresponding slots under the palm rest. tabs Gently press the keyboard down until it is flat all the way across. The keyboard should easily fall into place. Be careful not to damage the LCD panel.

  • Page 44: Replacing The Modem

    Turn your notebook over so the top is facing up. Remove the keyboard cover by following the instructions in “Replacing the keyboard cover” on page 30. Remove the keyboard by following the instructions in “Replacing the keyboard” on page 34. www.gateway.com...
  • Page 45 Replacing Gateway 450SX4 Components If your notebook has 802.11 wireless networking built in, slide the antenna cables away from the LED indicator panel EMI shielding. Remove the two screws that secure the modem to your notebook. Screws www.gateway.com...
  • Page 46 Insert the small flat-blade screwdriver or non-marring tool under the left side of the modem and gently pry it up about ¼ inch. Slide the modem toward you until it slides out from under the LED indicator panel shielding. LED indicator panel shielding www.gateway.com...
  • Page 47 Replacing Gateway 450SX4 Components Unplug the modem cable from the modem. Connect the modem cable to the new modem. Slide the modem under the LED indicator panel shielding, align the modem’s screw holes with the holes on your notebook, then press the modem into place.

  • Page 48: Replacing The Led Indicator Panel

    Turn your notebook over so the top is facing up. Remove the keyboard cover by following the instructions in “Replacing the keyboard cover” on page 30. Remove the keyboard by following the instructions in “Replacing the keyboard” on page 34. www.gateway.com...
  • Page 49 Replacing Gateway 450SX4 Components If your notebook has 802.11 wireless networking built in, slide the antenna cables away from the LED indicator panel EMI shielding. Remove the three screws that secure the LED indicator panel shield to your notebook. Screws...
  • Page 50 The LED panel’s metal shielding is very thin and will break if you bend it too much. When removing the shielding, carefully lift the middle slightly, then lift the ends slightly, then repeat until the shielding pulls completely free. www.gateway.com...
  • Page 51 Replacing Gateway 450SX4 Components Insert the small flat-blade screwdriver or non-marring tool under the left side of the indicator panel and gently pry it up about ¼ inch, then lift the entire panel from the notebook. Align the new indicator panel’s screw holes with the holes on your notebook, then press the panel into place.

  • Page 52: Replacing The Cooling Assembly

    Turn your notebook over so the top is facing up. Remove the keyboard cover by following the instructions in “Replacing the keyboard cover” on page 30. Remove the keyboard by following the instructions in “Replacing the keyboard” on page 34. www.gateway.com...
  • Page 53 Replacing Gateway 450SX4 Components Unplug the cooling fan. Remove the four screws that secure the cooling assembly to your notebook. Screws Screws www.gateway.com...
  • Page 54 At the same time as you lift, move the cooling assembly to the front of the notebook and remove it. Insert the new cooling assembly into your notebook. Replace the four cooling assembly screws. Plug in the cooling fan. Reassemble your notebook. www.gateway.com...

  • Page 55: Replacing The Hinge Covers

    Replacing Gateway 450SX4 Components Replacing the hinge covers Tools you need to complete this task: Flat-blade driver - OR - Scribe or non-marring tool Phillips #0 screwdriver Screws removed during this task: 4 chrome 2.5 × 2.5 mm 4 chrome 2.5 × 4 mm...
  • Page 56 Open the LCD panel all the way, so it lies flat on the table. Insert the small flat-blade screwdriver or non-marring tool under the bottom of the hinge covers, then carefully pry them up. Snap the new covers into place over the hinges. Reassemble your notebook. www.gateway.com...

  • Page 57: Replacing The Lcd Panel Assembly

    Replacing Gateway 450SX4 Components Replacing the LCD panel assembly Tools you need to complete this task: Flat-blade driver - OR - Scribe or non-marring tool Phillips #0 screwdriver Screws removed during this task: 4 chrome 2.5 × 2.5 mm 4 chrome 2.5 × 4 mm 5 chrome 2.5 ×...
  • Page 58 Remove the hinge covers by following the instructions in “Replacing the hinge covers” on page 50. Use your fingers to unplug the LCD cable from your notebook. Grasp the large cluster of cables, then pull the connector straight up. www.gateway.com...
  • Page 59 Replacing Gateway 450SX4 Components Loosen the screw holding the grounding wire, then lift the LCD panel grounding wire to remove the screw. Screw www.gateway.com...
  • Page 60 Replacing the LCD panel assembly If your notebook has 802.11 built in, pull the detached antenna cables up through the hole in the system board near the touchpad, then carefully pull the cables away from the LED indicator panel shielding. www.gateway.com...
  • Page 61 Replacing Gateway 450SX4 Components Remove the four hinge screws that secure the LCD panel to your notebook. Screws Screws Place the new LCD panel assembly onto your notebook, then replace the four hinge screws. Reattach the grounding cable. Thread the antenna cables through the guides on the LED indicator panel shielding, then through the hole in the system board.

  • Page 62: Replacing The Palm Rest Assembly

    (keyboard) (LED indicator panel) 4 chrome 2.5 × 4 mm 5 chrome 2.5 × 7 mm (cooling assembly) (hinges and grounding wire) 13 chrome 2.5 × 4 mm (bottom, palm rest) 2 chrome 2.5 × 2.5 mm (palm rest) www.gateway.com...
  • Page 63 Replacing Gateway 450SX4 Components To replace the palm rest assembly: Disconnect the AC adapter and modem and network cables and prepare your notebook by following the instructions in “Preparing your notebook” on page 6. Disconnect your notebook from the optional port replicator by following the instructions in “Disconnecting from the port replicator”...
  • Page 64 Replacing the palm rest assembly Remove the twelve chrome screws on the bottom of your notebook. Screws Screws Screws Screw Screws www.gateway.com...
  • Page 65 Replacing Gateway 450SX4 Components Turn your notebook over, then remove the three screws on the top of your notebook. Screws Use two fingers to pull up on the touchpad connector tabs. After the connector is in the raised position, carefully pull the cable out of the connector.
  • Page 66 The touchpad cable should slide easily into the touchpad connector. The cable is oriented correctly if it is not twisted. Use two fingers to press down on the touchpad connector tabs. This locks the touchpad cable into the touchpad connector. Reassemble your notebook. www.gateway.com...

  • Page 67: Replacing The Cmos Battery

    Replacing Gateway 450SX4 Components Replacing the CMOS battery Tools you need to complete this task: Flat-blade driver - OR - Scribe or non-marring tool Phillips #0 screwdriver Screws removed during this task: 1 chrome 2.5 × 4 mm 4 chrome 2.5 × 2.5 mm 3 chrome 2.5 ×...
  • Page 68 50. Remove the LCD panel by following the instructions in “Replacing the LCD panel assembly” on page 52. Remove the palm rest assembly by following the instructions in “Replacing the palm rest assembly” on page 57. www.gateway.com...
  • Page 69 Replacing Gateway 450SX4 Components Locate the old battery on the system board. CMOS battery Insert the small flat-blade screwdriver or non-marring tool under the old battery and gently pry it up until it pops out of the socket. Make sure the positive (+) side of the new battery is facing up, then press the battery into the socket until it snaps into place.

  • Page 70: Replacing The Power Board

    4 chrome 2.5 × 4 mm 5 chrome 2.5 × 7 mm (cooling assembly) (hinges and grounding wire) 4 chrome 2.5 × 4 mm 13 chrome 2.5 × 4 mm (bottom, palm rest) (power board) 2 chrome 2.5 × 2.5 mm (palm rest) www.gateway.com...
  • Page 71 Replacing Gateway 450SX4 Components To replace the power board: Disconnect the AC adapter and modem and network cables and prepare your notebook by following the instructions in “Preparing your notebook” on page 6. Disconnect your notebook from the optional port replicator by following the instructions in “Disconnecting from the port replicator”...
  • Page 72 Replacing the power board Remove the four screws that secure the power board EMI shield to your system board. Screws Screws Lift the shielding away from the system board. www.gateway.com...
  • Page 73 Replacing Gateway 450SX4 Components Insert the small flat-blade screwdriver or non-marring tool under the power board and gently pry up. Align the new power board’s screw holes with the holes on the system board, then press the power board into place.

  • Page 74: Replacing The System Board

    Replacing the system board Replacing the system board Tools you need to complete this task: Flat-blade driver - OR - Scribe or non-marring tool 5.0 mm hex nutdriver Phillips #0 screwdriver www.gateway.com...
  • Page 75 Replacing Gateway 450SX4 Components Screws removed during this task: 1 chrome 2.5 × 4 mm 1 chrome 2.5 × 4 mm 4 chrome 2.5 × 2.5 mm 1 chrome 2.5 × 2.5 mm (hard drive kit) (keyboard) (modem) 4 chrome 2.5 × 4 mm 3 chrome 2.5 ×...
  • Page 76 47. Remove the hinge covers by following the instructions in “Replacing the hinge covers” on page 50. Remove the LCD panel by following the instructions in “Replacing the LCD panel assembly” on page 52. www.gateway.com...
  • Page 77 Replacing Gateway 450SX4 Components Remove the palm rest assembly by following the instructions in “Replacing the palm rest assembly” on page 57. Remove the power board by following the instructions in “Replacing the power board” on page 65. Unplug the speakers from the system board (one connector).
  • Page 78 Replacing the system board Remove four system board screws and five system board hex nuts. Hex nuts Screws www.gateway.com...
  • Page 79 Replacing Gateway 450SX4 Components While pushing in on the PC Card eject button, remove the system board. Make sure that the rear I/O panel clears the bottom of the chassis (shown by the top arrow) and the side audio jacks clear the bottom of the chassis (shown by the left arrow).
  • Page 80 Before you continue, you should verify that the new system board you received is the same version as the old system board. One version of the Gateway 450SX4 system board has a square silver heat dissipater. This type of system board is used with a chassis bottom that does not have thermal pads.
  • Page 81 Replacing Gateway 450SX4 Components The second version of the Gateway 450SX4 system board does not have a square silver heat dissipater. This type of system board is used with a chassis bottom that has thermal pads. No heat dissipater Thermal pads www.gateway.com...
  • Page 82 After you make sure that the new system board is the same as the old one, transfer the processor from the old board to the new one. Use a flat-blade screwdriver to turn the processor lock screw ¼-turn counter-clockwise, then remove the processor from the old system board. www.gateway.com...
  • Page 83 Replacing Gateway 450SX4 Components Install the processor onto the new system board making sure that Pin 1 on the processor (indicated by the silk-screened arrow on the corner of the processor) aligns with Pin 1 on the processor socket (indicated by the...
  • Page 84 Hex nut numbered holes 3 and 4 use the “long” hex nuts and hex nut numbered holes 7, 10, and 12 use the “short” hex nuts. Replace the six rear I/O panel hex nuts. Connect the speakers. Reassemble your notebook. www.gateway.com...
  • Page 85 Replacing Gateway 450SX4 Components www.gateway.com...
  • Page 87 MAN SYS 450SX4 SERVICE GDE R4 4/03...

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