Dell E7240 Inside view Front

3. battery bay

4. SD card

5. WLAN card

6. WWAN card

7. memory module

8. heatsink

Inside view — Front

1. coin-cell battery

2. SIM card board

3. speaker

4. system board

5. wi-fi switch board

6. system fan

7. display assembly

Contents

Main Notes, Cautions, and Warnings Contents Page Working on Your Computer Before Working Inside Your Computer Page Turning Off Your Computer After Working Inside Your Computer Page Page Page Removing and Installing Components Inside view Front Page Page Page Page Installing the mSATA SSD Card Removing the Keyboard Trim Installing the Keyboard Trim Removing the Keyboard Installing the Keyboard Removing the Palmrest Installing the Palmrest Removing the WiFi Switch Board Installing the WiFi Switch Board Removing the Memory Module Installing the Memory Module Removing the WLAN Card Installing the WLAN Card Removing the WWAN Card Page Installing the Display Panel Removing the Coin-Cell Battery Installing the Coin-Cell Battery Removing the Speakers Installing the Speakers Removing the Display-Hinge Cover Installing the Display-Hinge Cover Removing the Heatsink Installing the Heatsink Removing the Display Assembly Page Installing the Display Assembly Removing the System Fan Installing the System Fan Removing the System Board Installing the System Board Removing the Power Connector Installing the Power Connector Page Page Page System Setup Boot Sequence Navigation Keys System Setup Options Page Page Page Page Page Page Page Page Updating the BIOS System and Setup Password Assigning a System Password and Setup Password Deleting or Changing an Existing System and/or Setup Password Page Diagnostics Enhanced Pre-Boot System Assessment (ePSA) Diagnostics Device Status Lights Battery Status Lights Page Page Specifications Page Page Page Page Page Contacting Dell