Dell P21T - Manual

* On the Home screen, click and then select Shut down . • In Windows 7: 1. Click Start . 2. Click Shut Down. or 1. Click Start . 2. Click the arrow in the lower-right corner of the Start menu as shown below, and then click Shut Down . 2. Ensure that the computer and all attached devices are turned o...

2 Removing and Installing Components This section provides detailed information on how to remove or install the components from your computer. Recommended Tools The procedures in this document may require the following tools: • Small flat-blade screwdriver• #0 Phillips screwdriver• #1 Phillips screw...

Installing the Base Cover 1. Place the base cover to align with the screw holders on the computer. 2. Tighten the screws to secure the base cover to the computer. 3. Follow the procedures in After Working Inside Your Computer . Removing the Battery 1. Follow the procedures in Before Working Inside Y...

Installing the Battery 1. Insert the battery into its place on the computer. 2. Connect the battery cable to its connector on the system board. 3. Fix the adhesive tape to secure the battery cable. 4. Tighten the screws to secure the battery to the computer. 5. Install the base cover . 6. Follow the...

Installing the Audio Board 1. Insert the audio board into its place on the computer. 2. Tighten the screw to secure the audio board to the computer. 3. Connect the audio-board cable to its connector on the system board. 4. Install the:a. battery b. base cover 5. Follow the procedures in After Workin...

4. Pry the edges to release the display bezel [1] and remove the display bezel from the display assembly [2]. Installing the Display Bezel 1. Place the display bezel on the display assembly. 2. Starting from the top corner, press on the display bezel and work around the entire bezel until it snaps o...

b. battery c. base cover 6. Follow the procedures in After Working Inside Your Computer . Removing the Display Panel 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the:a. base cover b. battery c. display assembly d. display bezel 3. To release the display panel from the ...

5. Disconnect the eDP cable from its connector [1] and remove the display panel from the display assembly [2]. Installing the Display Panel 1. Connect the eDP cable to its connector and fix the adhesive tape. 2. Place the display panel to align with the screw holders on the display assembly. 3. Tigh...

Installing the Camera 1. Insert the camera into its place on the display assembly. 2. Connect the camera cable to its connector on the display assembly. 3. Install the:a. display bezel b. display assembly c. battery d. base cover 4. Follow the procedures in After Working Inside Your Computer . Remov...

Installing the Power-Connector Port 1. Insert the power-connector port into its place on the computer. 2. Connect the power-connector port cable to its connector on the system board. 3. Install the:a. display assembly b. battery c. base cover 4. Follow the procedures in After Working Inside Your Com...

6. Remove the screws that secure the hard-drive bracket to the hard drive [1] and remove the hard drive from the hard-drive bracket [2]. Installing the Hard-Drive Assembly 1. Place the hard drive within the hard-drive assembly, align the screw holders, and tighten the screws to secure the hard-drive...

b. battery 3. Pry the clips securing the memory module until the memory pops-up and remove the memory from the system board. Installing the Memory 1. Insert the memory on the memory socket until the clips secure the memory. 2. Install the:a. battery b. base cover 3. Follow the procedures in After Wo...

Installing the Coin-Cell Battery 1. Insert the coin-cell battery in its place on the computer. 2. Route the coin-cell battery cable along its routing channels. 3. Fix the adhesive tape to secure the coin-cell battery cable. 4. Connect the coin-cell battery cable to its connector on the system board....

Installing the Keyboard Trim 1. Insert the keyboard trim to the keyboard until it snaps in its place. 2. Follow the procedures in After Working Inside Your Computer . Removing the Keyboard 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the:a. battery b. base cover c. key...

5. Perform the following steps:a. Pry the keyboard to release it from the computer [1].b. Remove the keyboard from the computer [2]. Installing the Keyboard 1. Place the keyboard to align with the screw holders on the computer. 2. Flip the computer and connect the keyboard cable to its connector on ...

4. Perform the following steps:a. Remove the screws that secure the heatsink to the system board [1] [2] [3].b. Remove the heatsink from the system board [4]. Installing the Heatsink 1. Insert the heatsink into its place on the system board. 2. Place the metal bracket and tighten the screws to secur...

Removing the System Board 1. Follow the procedures in Before Working Inside Your Computer . 2. Remove the:a. base cover b. battery c. memory d. heatsink 3. Disconnect the following cables from the system board [1] [2]:a. keyboardb. touchpadc. LED boardd. network and speaker [3]e. hard-drive assembly...

Installing the System Board 1. Insert the system board into its place on the computer. 2. Tighten the screws to secure the system board to the computer. 3. Connect the following cables to their connectors on the system board:a. displayb. coin-cell battery and power-connector portc. hard-drive assemb...

Installing the Speaker 1. Insert the speaker into its place on the computer. 2. Tighten the screws to secure the speaker to the computer. 3. Install the:a. system board b. heatsink c. memory d. battery e. base cover 4. Follow the procedures in After Working Inside Your Computer . 30

3 System Setup System Setup enables you to manage your computer hardware and specify BIOS ‐ level options. From the System Setup, you can: • Change the NVRAM settings after you add or remove hardware• View the system hardware configuration• Enable or disable integrated devices• Set performance and p...

Table 1. Navigation Keys Keys Navigation Up arrow Moves to the previous field. Down arrow Moves to the next field. <Enter> Allows you to select a value in the selected field (if applicable) or follow the link in the field. Spacebar Expands or collapses a drop ‐ down list, if applicable. <Ta...

4 Technical Specifications NOTE: Offerings may vary by region. The following specifications are only those required by law to ship with your computer. For more information about the configuration of your computer, go to Help and Support in your Windows operating system and select the option to view ...

5 Diagnostics If you experience a problem with your computer, run the ePSA diagnostics before contacting Dell for technical assistance. The purpose of running diagnostics is to test your computer's hardware without requiring additional equipment or risking data loss. If you are unable to fix the pro...

1. Shutdown the computer. 2. Press and hold the <fn> key, while pressing the power button, and then release both. The Enhanced Pre-boot System Assessment window displays, listing all devices detected in the computer. The diagnostics starts running the tests on all the detected devices. 3. On t...

Storage LED Power LED Wireless LED Fault Description Blinking Solid Blinking The display encountered a problem during initialization. Off Blinking Blinking The modem is preventing the system from completing POST Off Blinking Off Memory failed to initialize or memory is unsupported. Battery Status Li...

6 Contacting Dell 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. Dell provides several online and telephone-based support and service options. Availability varies by country and product, ...