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Dell Inspiron 3250 Service Manual

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Inspiron 3250
Service Manual
Computer Model: Inspiron 3250
Regulatory Model: D13S
Regulatory Type: D13S001

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Summary of Contents for Dell Inspiron 3250

  • Page 1 Inspiron 3250 Service Manual Computer Model: Inspiron 3250 Regulatory Model: D13S Regulatory Type: D13S001...
  • Page 2 WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Copyright © 2015 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws. Dell and the Dell logo are trademarks ™...

  • Page 3: Table Of Contents

    Contents Before working inside your computer........9 ....................9 Before you begin ....................9 Safety instructions ..................10 Recommended tools After working inside your computer........12 Technical overview..............13 ................13 Inside view of your computer ................14 System board components Removing the computer cover ..........15 ......................
  • Page 4 Replacing the 3.5-inch hard drive..........24 ......................24 Procedure ....................24 Post-requisites Removing the 2.5-inch hard drives........25 .....................25 Prerequisites ......................26 Procedure Replacing the 2.5-inch hard drives........29 ......................29 Procedure ....................29 Post-requisites Removing the heat-sink assembly......... 30 ....................30 Prerequisites ......................
  • Page 5 Replacing the graphics card............43 ......................43 Procedure ....................43 Post-requisites Removing the drive cage ............44 ....................44 Prerequisites ......45 Procedure for removing drive cage with 2.5 inch hard drive .......47 Procedure for removing drive cage with 3.5–inch hard drive Replacing the drive cage............
  • Page 6 Replacing the coin-cell battery..........59 ......................59 Procedure ....................59 Post-requisites Removing the wireless card............ 60 ....................60 Prerequisites ......................60 Procedure Replacing the wireless card.............62 ......................62 Procedure ....................63 Post-requisites Removing the chassis fan............64 ....................64 Prerequisites ......................
  • Page 7 Replacing the power-button module........73 ......................73 Procedure ....................73 Post-requisites Removing the power-supply unit.......... 74 .....................74 Prerequisites ......................74 Procedure Replacing the power-supply unit........... 77 ......................77 Procedure ....................77 Postrequisites Removing the system board............78 .....................78 Prerequisites ......................78 Procedure Replacing the system board............ 81 ......................81 Procedure ....................
  • Page 8 Getting help and contacting Dell........... 87 ..................87 Self-help resources ....................88 Contacting Dell...

  • Page 9: Before Working Inside Your Computer

    Before working inside your computer NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Before you begin Save and close all open files and exit all open applications. Shut down your computer. –...

  • Page 10: Recommended Tools

    CAUTION: You should only perform troubleshooting and repairs as authorized or directed by the Dell technical assistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. See the safety instructions that shipped with the product or at www.dell.com/regulatory_compliance.
  • Page 11 • Flat-head screwdriver • Plastic scribe...

  • Page 12: After Working Inside Your Computer

    After working inside your computer CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer. Replace all screws and ensure that no stray screws remain inside your computer. Connect any external devices, peripherals, and cables you removed before working on your computer.

  • Page 13: Technical Overview

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Inside view of your computer drive cage processor fan power-supply unit...

  • Page 14: System Board Components

    System board components processor-fan cable connector processor power-cable connector memory-module slots power-button cable connector coin-cell battery wireless-card slot chassis-fan cable connector drive power-cable connector primary hard-drive data cable connector optical-drive data-cable/ graphics-card slot secondary hard-drive data-cable connector CMOS jumper password jumper...

  • Page 15: Removing The Computer Cover

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Place the computer on its side with the vents facing up. Remove the screws that secure the computer cover to the chassis.

  • Page 16: Replacing The Computer Cover

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Align the tabs on the computer cover with the slots on the chassis and slide it toward the front of the computer.

  • Page 17: Removing The Front Bezel

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the computer cover. Procedure Place the computer in an upright position.
  • Page 18 Gently rotate and pull the front bezel away from the chassis. tabs (6) chassis slots (3) front bezel...

  • Page 19: Replacing The Front Bezel

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Align and insert the tabs on the front bezel into the slots on the front panel.

  • Page 20: Removing The 3.5-Inch Hard Drive

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the computer cover. Remove the front bezel.
  • Page 21 Remove the screw that secures the hard-drive assembly to the drive cage. hard-drive assembly screws (2) data cable power cable...
  • Page 22 Using the pull-tab, slide the hard-drive assembly toward the inside of the computer and lift it off the drive cage. hard-drive assembly pull-tab Turn the hard-drive assembly over. Remove the screws that secure the hard-drive bracket to the hard-drive assembly.
  • Page 23 Slide the hard drive out of the hard-drive bracket. screws (2) hard drive hard-drive bracket...

  • Page 24: Replacing The 3.5-Inch Hard Drive

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Slide the hard drive into the hard-drive bracket. Align the screw holes on the hard drive with the screw holes on the hard- drive bracket.

  • Page 25: Removing The 2.5-Inch Hard Drives

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the computer cover.

  • Page 26: Procedure

    Procedure Disconnect the power cable and the data cable from the hard drive. NOTE: Disconnect the cables from the second hard drive, if installed. hard-drive assembly data cable power cable Remove the screw that secures the hard-drive bracket to the drive cage.
  • Page 27 Slide and lift the hard-drive assembly off the drive cage. hard-drive assembly screw drive cage Remove the screws that secure the hard drive to the hard-drive bracket.
  • Page 28 Slide the hard drive out of the hard-drive bracket. hard drive hard-drive bracket screws (4) NOTE: Follow step 4 to step 5 to remove the second hard drive, if installed.

  • Page 29: Replacing The 2.5-Inch Hard Drives

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Slide the hard drive into the hard-drive bracket. Align the screw holes on the hard drive with the screw holes on the hard- drive bracket.

  • Page 30: Removing The Heat-Sink Assembly

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. WARNING: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you touch it.

  • Page 31: Procedure

    Procedure Pull the tabs outward and release the fan-shroud from the processor fan. tabs (4) fan-shroud Disconnect the processor-fan cable from the system board. In sequential order (indicated on the heat-sink assembly), loosen the captive screws that secure the heat-sink assembly to the system board.
  • Page 32 Lift the heat-sink assembly along with its cable off the system board. processor-fan cable heat-sink assembly captive screws (4)

  • Page 33: Replacing The Heat-Sink Assembly

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. CAUTION: Incorrect alignment of the heat sink can damage the system board and processor. NOTE: The original thermal grease can be reused if the original system board and fan are reinstalled together.

  • Page 34: Removing The Memory Module

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the computer cover. Remove the front bezel.

  • Page 35: Procedure

    Procedure Disconnect the power cable and the data cable from the hard drive. hard-drive assembly data cable power cable Remove the screws that secure the drive cage to the chassis.
  • Page 36 Press the tab and slide the drive cage outward. drive cage screws (2)
  • Page 37 Using your fingertips, spread apart the securing clips at each end of the memory-module slot until the memory module pops up. CAUTION: To prevent damage to the memory module, hold the memory module by the edges only. Do not touch the components on the memory module.
  • Page 38 Slide and remove the memory module from the memory-module slot. memory module memory-module slot...

  • Page 39: Replacing The Memory Module

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Align the notch on the memory module with the tab on the memory- module slot.

  • Page 40: Post-Requisites

    Insert the memory module into the memory-module slot and press the memory module down until it clicks into place. NOTE: If you do not hear the click, remove the memory module and reinstall it. memory module memory-module slot notch Slide the drive cage into the chassis. Align the screw holes on the drive cage with screw holes on the chassis.

  • Page 41: Removing The Graphics Card

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the computer cover. Procedure...
  • Page 42 Pushing the securing tab away from the graphics card, grasp the card by its top corners and ease it out of the slot. graphics card card-retention bracket...

  • Page 43: Replacing The Graphics Card

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Align the graphics card with the slot on the system board. Place the card in the slot and press down firmly. Ensure that the card is firmly seated in the slot.

  • Page 44: Removing The Drive Cage

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the computer cover. Remove the front bezel.

  • Page 45: Procedure For Removing Drive Cage With 2.5 Inch Hard Drive

    Procedure for removing drive cage with 2.5 inch hard drive Disconnect the power cables and data cables from all the drives. NOTE: The number and type of drives varies depending on the configuration you ordered. drive cage hard-drive cable optical-drive cable power cable Remove the screws that secure the drive cage to the chassis, then press the tab and slide the drive cage outward.
  • Page 46 Turn the drive cage at an angle to release the tab on the drive cage from the slot on the chassis. 2.5–inch hard drive assembly screws (2) Lift the drive cage off the chassis. Follow procedure from step 2 to step 5 in ”Removing the hard drive".

  • Page 47: Procedure For Removing Drive Cage With 3.5-Inch Hard Drive

    Procedure for removing drive cage with 3.5–inch hard drive Disconnect the power cables and data cables from all the drives. NOTE: The number and type of drives varies depending on the configuration you ordered. drive cage hard-drive data cable hard-drive power cable optical-drive data cable optical-drive power cable Remove the screws that secure the drive cage to the chassis, then press...
  • Page 48 Using the pull-tab, slide the hard-drive assembly toward the inside of the computer and lift it. tab (2) hard drive assembly pull-tab screws (2) Remove the optical drive, if applicable.

  • Page 49: Replacing The Drive Cage

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Replace the optical drive, if applicable. Replace the 2.5–inch hard...

  • Page 50: Removing The Processor

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the computer cover. Remove the front bezel.
  • Page 51 Gently lift the processor off the processor socket. release lever securing tab processor cover processor...

  • Page 52: Replacing The Processor

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. CAUTION: If either the processor or the heat sink is replaced, use the thermal grease provided in the kit to ensure that thermal conductivity is achieved.

  • Page 53: Post-Requisites

    Pivot the release lever down and place it under the tab on the processor cover. release lever processor cover processor processor cover alignment post Post-requisites Replace the heat-sink assembly. Replace the front bezel. Replace the computer cover.

  • Page 54: Removing The Optical Drive

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the computer cover. Remove the front bezel.
  • Page 55 Slide the optical-drive assembly out of the drive cage. NOTE: Note the orientation of the optical drive so that you can replace it correctly. optical-drive assembly drive cage screws (2) Carefully pull the optical-drive bezel and remove it from the optical drive. optical-drive bezel optical drive...

  • Page 56: Replacing The Optical Drive

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.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 57: Removing The Coin-Cell Battery

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. CAUTION: Removing the coin-cell battery resets the BIOS setup program’s settings to default. It is recommended that you note the BIOS setup program’s settings before removing the coin-cell battery.
  • Page 58 coin-cell battery battery socket...

  • Page 59: Replacing The Coin-Cell Battery

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Insert the coin-cell battery into the battery socket sideways and snap it into place.

  • Page 60: Removing The Wireless Card

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the computer cover. Remove the front bezel.
  • Page 61 Slide the wireless card out of the wireless-card slot. screw wireless-card bracket antenna cables (2) wireless card wireless-card slot...

  • Page 62: Replacing The Wireless Card

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure CAUTION: To avoid damage to the wireless card, do not place any cables under it.

  • Page 63: Post-Requisites

    Replace the screw that secures the wireless card to the system board. wireless card notch antenna cables (2) wireless-card bracket screw Post-requisites Replace the drive cage. Replace the heat-sink assembly. Replace the front bezel. Replace the computer cover.

  • Page 64: Removing The Chassis Fan

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the computer cover. Remove the front bezel.
  • Page 65 Remove the chassis fan from the chassis. screws (4) chassis-fan cable chassis fan...

  • Page 66: Replacing The Chassis Fan

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Align the screw holes on the chassis fan with the screw holes on the chassis.

  • Page 67: Removing The Antenna Modules

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the computer cover. Remove the front bezel.

  • Page 68: Procedure

    Procedure Gently slide the antenna cables through the routing hole on the chassis. routing hole antenna cables (2)
  • Page 69 Using a plastic scribe, gently pry the antenna modules off the chassis. NOTE: Note the location of the antenna modules so that you can replace them correctly. plastic scribe antenna cables (2) antenna modules (2)

  • Page 70: Replacing The Antenna Modules

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Adhere the antenna modules to the chassis. Slide the antenna cables through the routing hole on the chassis.

  • Page 71: Removing The Power-Button Module

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the computer cover. Remove the front bezel.
  • Page 72 Slide the power-button module, along with its cable, through the slot on the front panel. power-button cable tabs (2) power-button module...

  • Page 73: Replacing The Power-Button Module

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Slide the power-button cable through the slot on the chassis. Align and push the power-button module into the slot on the front panel till the clips on the module snap in place.

  • Page 74: Removing The Power-Supply Unit

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the computer cover. Remove the front bezel.
  • Page 75 Note the routing and remove the power cables from the routing guides. securing clips (2) power cable routing guides Remove the screws that secure the power-supply unit to the chassis. Press the clamp and release the power-supply unit from the chassis.
  • Page 76 Slide and lift the power-supply unit off the chassis. power cables clamp power-supply unit screws (3)

  • Page 77: Replacing The Power-Supply Unit

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Slide the power supply towards the back of the chassis. Align the screw holes on the power-supply unit with the screw holes on the chassis.

  • Page 78: Removing The System Board

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program after you replace the system board.
  • Page 79 Remove the screw that secures the front panel to the chassis. front panel screw Press the tab down to release the front panel from the chassis and then rotate it outward. Remove the screws that secure the system board to the chassis.
  • Page 80 Starting from the back of the chassis, lift and slide the system board out of the chassis. system board screws (6)

  • Page 81: Replacing The System Board

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program after you replace the system board.
  • Page 82 Replace the computer cover.

  • Page 83: Bios Setup Program

    Entering BIOS setup program Turn on (or restart) your computer. During POST, 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.

  • Page 84: Prerequisites

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance.

  • Page 85: Prerequisites

    Prerequisites Remove the computer cover. Procedure Remove the jumper plug from pins 2 and 3 and replace it on pins 1 and 2. Wait for 5 seconds. Remove the jumper plug from pins 1 and 2 and replace it on pins 2 and 3. jumper plug pin 1 pin 2...

  • Page 86: Flashing The Bios

    You may need to flash (update) the BIOS when an update is available or when you replace the system board. To flash the BIOS: Turn on the computer. Go to www.dell.com/support. Click Product Support, enter the Service Tag of your computer and click Submit.
  • Page 87 Getting help and contacting Dell Self-help resources You can get information and help on Dell products and services using these self-help resources: Information about Dell products and www.dell.com services Windows 8.1 and Windows 10 Dell Help & Support app Windows 10 Get started app Windows 8.1...

  • Page 88: Contacting Dell

    Contacting Dell To contact Dell for sales, technical support, or customer service issues, see www.dell.com/contactdell. NOTE: Availability varies by country and product, and some services may not be available in your country. NOTE: If you do not have an active internet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog.

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