Dell Inspiron M431R Owner's Manual
Dell Inspiron M431R Owner's Manual

Dell Inspiron M431R Owner's Manual

Owner's manual
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Inspiron 14/14R/M431R
Owner's Manual
Computer model: Inspiron 3421/5421/5435
Regulatory model: P37G
Regulatory type: P37G001/P37G002

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Summary of Contents for Dell Inspiron M431R

  • Page 1 Inspiron 14/14R/M431R Owner’s Manual Computer model: Inspiron 3421/5421/5435 Regulatory model: P37G Regulatory type: P37G001/P37G002...
  • Page 2 WARNING: A WARNING indicates a potential for property damage, personal injury, or death. ____________________ © 2013 Dell Inc. ™ ™ Trademarks used in this text: Dell , the DELL logo, and Inspiron are trademarks of ® ® Dell Inc.; Microsoft...
  • Page 3: Table Of Contents

    Contents Before You Begin ......Turn Off Your Computer and Connected Devices ..Safety Instructions .
  • Page 4 Replacing the Base Cover ....Procedure ......Postrequisites .
  • Page 5 Removing the Coin-Cell Battery ....Prerequisites ......Procedure .
  • Page 6 Replacing the Thermal-Cooling Assembly ..Procedure ......Postrequisites .
  • Page 7 Removing the Display Panel ....Prerequisites ......Procedure .
  • Page 8 Contents...
  • Page 9: Before You Begin

    Before You Begin Turn Off Your Computer and Connected Devices CAUTION: To avoid losing data, save and close all open files and exit all open programs before you turn off your computer. Save and close all open files and exit all open programs. Shut down your computer.
  • Page 10: Safety Instructions

    For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. WARNING: Disconnect all power sources before opening the computer cover or panels. After you finish working inside the computer, replace all covers, panels, and screws before connecting to the power source.
  • Page 11: After Working Inside Your Computer

    After Working Inside Your Computer After you complete the replacement procedures, ensure the following: • Replace all screws and ensure that no stray screws remain inside your computer. • Connect any external devices, cables, cards, and any other part(s) you removed before working on your computer.
  • Page 12: Removing The Battery

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Close the display and turn the computer over.
  • Page 13: Replacing The Battery

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Align the tabs on the battery with the slots on the battery bay and snap the battery into place.
  • Page 14: Removing The Optical Drive

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery" on page 12.
  • Page 15 Carefully pull the optical-drive bezel and remove it from the optical drive. screw optical-drive bracket optical drive optical-drive bezel Removing the Optical Drive...
  • Page 16: Replacing The Optical Drive

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Align the tabs on the optical-drive bezel with the slots on the optical drive and snap the optical-drive bezel into place.
  • Page 17: Removing The Keyboard

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery" on page 12.
  • Page 18 Turn the computer over and open the display as far as possible. Using a plastic scribe, pry the keyboard from the tabs on the palm-rest. tabs (5) plastic scribe keyboard Removing the Keyboard...
  • Page 19 Lift and slide the keyboard towards the display to release the keyboard from the palm-rest and place the keyboard on the palm-rest. Lift the connector latch and disconnect the keyboard cable from the keyboard-cable connector. Lift the keyboard off the palm-rest. keyboard palm-rest keyboard cable...
  • Page 20: Replacing The Keyboard

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Slide the keyboard cable into the keyboard-cable connector and press down on the connector latch to secure the cable.
  • Page 21: Removing The Base Cover

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery" on page 12.
  • Page 22: Replacing The Base Cover

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Slide the tabs on the base cover into the slots on the computer base and snap the base cover into place.
  • Page 23: Removing The Memory Module(S)

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery" on page 12.
  • Page 24: Replacing The Memory Module(S)

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Align the notch on the memory module with the tab on the memory-module connector.
  • Page 25: Prerequisites

    Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. CAUTION: To avoid data loss, do not remove the hard drive while the computer is in Sleep or On state.
  • Page 26 Lift and slide the hard-drive assembly out of tabs on the computer base. screw pull-tab hard-drive assembly Remove the screws that secure the hard-drive bracket to the hard drive. Using the pull-tab, lift the hard-drive bracket off the hard drive. hard-drive bracket screws (2) hard drive...
  • Page 27: Replacing The Hard Drive

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. CAUTION: Hard drives are extremely fragile. Exercise care when handling the hard drive.
  • Page 28: Removing The Wireless Mini-Card

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery" on page 12.
  • Page 29 Slide and remove the wireless mini-card out of the mini-card connector. wireless mini-card mini-card connector Removing the Wireless Mini-Card...
  • Page 30: Replacing The Wireless Mini-Card

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure CAUTION: To avoid damage to the wireless mini-card, ensure that no cables are placed under the wireless mini-card.
  • Page 31: Removing The Palm-Rest

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery" on page 12.
  • Page 32 Press the latches to release the palm-rest from the computer base. latches (4) Removing the Palm-Rest...
  • Page 33 Turn the computer over and open the display as far as possible. Remove the screws that secure the palm-rest to the computer base. Lift the connector latches and, using the pull-tabs, disconnect the touchpad cable and the power-button cable from the system board. power-button cable screws (4) connector latches (2)
  • Page 34 Using a plastic scribe, gently lift and release the tabs on the palm-rest from the slots on the computer base. CAUTION: Separate the palm-rest from the display assembly carefully to avoid damage to the display assembly. Lift the palm-rest off the computer base. palm-rest plastic scribe Removing the Palm-Rest...
  • Page 35: Replacing The Palm-Rest

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Align the palm-rest over the computer base.
  • Page 36: Removing The Coin-Cell Battery

    Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. CAUTION: Removing the coin-cell battery resets the BIOS settings to default. It is recommended that you note the BIOS settings before removing the coin-cell battery.
  • Page 37: Procedure

    Procedure Using a plastic scribe, gently pry out the coin-cell battery out of the battery socket on the system board. plastic scribe coin-cell battery battery socket Removing the Coin-Cell Battery...
  • Page 38: Postrequisites

    Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. WARNING: The battery may explode if installed incorrectly. Replace the battery only with the same or equivalent type. Discard used batteries according to the manufacturer’s instructions.
  • Page 39: Prerequisites

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery" on page 12.
  • Page 40: Procedure

    Procedure Lift the connector latch and, using the pull-tab, disconnect the I/O-board cable from the I/O-board. Remove the screw that secures the I/O board to the computer base. Lift the I/O board off the computer base. I/O board connector latch pull-tab I/O board cable screw...
  • Page 41: Postrequisites

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Use the alignment posts on the computer base to place the I/O board in position.
  • Page 42: Prerequisites

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery" on page 12.
  • Page 43: Procedure

    Procedure Peel the tape that secures the display cable to the display-cable connector. Lift the connector latch and pull the tape to disconnect the display cable from the display-cable connector. display cable tape connector latch Peel the display cable from the fan. Move the display cable away from the power-adapter-port cable.
  • Page 44 Disconnect the power-adapter-port cable from the system board. Note the power-adapter-port cable routing and remove it from the routing guides on the computer base. Lift the power-adapter port, along with its cable, off the computer base. power-adapter port routing guides power-adapter-port cable Removing the Power-Adapter Port...
  • Page 45: Procedure

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Slide the power-adapter port into position. Route the power-adapter-port cable through the routing guides on the computer base.
  • Page 46: Prerequisites

    Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in system setup after you replace the system board.
  • Page 47: Procedure

    Procedure Peel the tape that secures the display cable to the system-board connector. Lift the connector latch and, using the pull-tab, disconnect the display cable from the system-board connector. Peel the display cable from the fan. Lift the connector latch and, using the pull-tab, disconnect the I/O-board cable from the system-board connector.
  • Page 48 Remove the screw that secures the system board to the computer base. Lift the system board at an angle and release the system-board ports from the slots on the computer base. Lift the system-board assembly off the computer base. system board screw Turn the system board over.
  • Page 49: Procedure

    Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the system setup after you replace the system board.
  • Page 50 Entering the Service Tag in system setup Turn on the computer. Press <F2> during POST to enter the system setup program. Using the arrow keys, select Enter Setup and press <Enter>. Navigate to the Main tab and enter your computer’s Service Tag in the Service Tag field.
  • Page 51: Prerequisites

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery" on page 12.
  • Page 52: Procedure

    Procedure NOTE: The appearance of the thermal-cooling assembly on your system may differ from the image shown in this document. In sequential order (indicated on the heat-sink), loosen the captive screws that secure the thermal-cooling assembly to the system board. Lift the thermal-cooling assembly off the system board.
  • Page 53: Replacing The Thermal-Cooling Assembly

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Clean the thermal grease from the bottom of the thermal-cooling assembly and reapply it.
  • Page 54: Prerequisites

    "Before You Begin" on page 9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/ regulatory_compliance. Prerequisites Remove the battery.
  • Page 55: Procedure

    Procedure Note the speaker-cable routing and remove the cable from its routing guides. Lift the speakers, along with the speaker cable, off the computer base. speaker cable speakers (2) Removing the Speakers...
  • Page 56: Postrequisites

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Using the alignment posts on the computer base, place the speakers in position.
  • Page 57: Prerequisites

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery" on page 12.
  • Page 58: Procedure

    Procedure Note the antenna cable routing and remove the cable from its routing guides. Remove the screws that secure the display assembly to the computer base. Lift the display assembly off the computer base. display assembly screws (4) routing guides Removing the Display Assembly...
  • Page 59: Procedure

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Place the display assembly on the computer base and align the screw holes on the display assembly with the screw holes on the computer base.
  • Page 60: Removing The Display Bezel

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery" on page 12.
  • Page 61: Procedure

    Procedure Press the hinge covers on the sides and lift the hinge covers to remove them from the display assembly. hinge covers (2) Using your fingertips, carefully pry up the inside edge of the display bezel. Remove the display bezel off the display back-cover. display bezel Removing the Display Bezel...
  • Page 62: Procedure

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Align the display bezel with the display back-cover, and gently snap the display bezel into place.
  • Page 63: Prerequisites

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery" on page 12.
  • Page 64: Procedure

    Procedure Remove the screws that secure the display hinges to the display back-cover. Lift the display hinges off the display back-cover. display hinges (2) display back-cover screws (8) Removing the Display Hinges...
  • Page 65: Postrequisites

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Align the screw holes on the display hinges with the screw holes on the display back-cover.
  • Page 66: Removing The Display Panel

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery" on page 12.
  • Page 67: Procedure

    Procedure Remove the screws that secure the display panel to the display back-cover. Gently lift the display panel and turn it over. display back-cover display panel screw (4) Peel the tape adhered over the display cable. Disconnect the display cable from the display-panel cable connector. tape display cable Removing the Display Panel...
  • Page 68: Replacing The Display Panel

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Connect the display cable to the display-panel connector.
  • Page 69: Prerequisites

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery" on page 12.
  • Page 70: Procedure

    Procedure Peel the tapes that secure the camera module to the display back-cover. Disconnect the camera cable from the camera module. Peel the camera module off the display back-cover. tapes (2) camera module camera cable Removing the Camera Module...
  • Page 71: Procedure

    9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Adhere the camera module to the display back-cover.
  • Page 72: Flashing The Bios

    The BIOS may require flashing when an update is available or when replacing the system board. To flash the BIOS: Turn on the computer. Go to dell.com/support. If you have your computer's Service Tag, type your computer's Service Tag and click Submit.

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