Power Switch; Removing The Power Switch; Installing The Power Switch; Power-Supply Unit - Dell Precision 3440 Small Form Factor Service Manual

Power switch

Removing the power switch

Prerequisites
1. Follow the procedure in
2. Remove the side cover.
3. Remove the front bezel.
4. Remove the Hard drive and optical drive module
About this task
The following images indicate the location of the heat-sink and provide a visual representation of the removal procedure.
Steps
1. Disconnect the power switch cable from the system board.
2. Press the power switch retention tabs and pull the power switch out from the system.

Installing the power switch

Prerequisites
About this task
The following image indicates the location of the VR heat sink and provides a visual representation of the installation procedure.
Steps
1. Slide the power switch module into the slot on the chassis until it clicks into place.
2. Connect the power switch cable to the connector on the system board.
Next steps
1. Install the Hard drive and optical drive module
2. Install the front bezel.
3. Install the side cover.
4. Follow the procedure in

Power-supply unit

Removing the power-supply unit

Prerequisites
1. Follow the procedure in
2. Remove the Side cover
3. Remove the Front bezel
4. Remove the Hard drive and optical drive module
About this task
The following images indicate the location of the power-supply unit and provide a visual representation of the removal procedure.
before working inside your
after working inside your computer.
Before working inside your
computer.
computer.
Disassembly and reassembly 45