3. Open the system.
4. Align the tabs with the thermal-sensor slot on the chassis and secure the thermal sensor to the chassis.
5. Route the thermal-sensor cable through the chassis clip and connect the thermal-sensor connector to the system
board.
6. Close the system.
7. Place the system upright on a flat, stable surface.
8. Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.
Power Switch
Removing The Power Switch
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your
warranty. Read and follow the safety instructions that came with the product.
1. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet and
peripherals.
2. Lay the system on its side, on a flat and stable surface.
3. Open the system.
4. Remove the following components:
a) bezel
b) optical drive
For information on removing the optical drive, see Removing The Optical Drive.
5. Disconnect the power-switch cable from the system board.
6. Remove the power-switch cable from the chassis clip.
7. Remove the screw securing the power switch to the chassis.
8. Slide the power switch down to disengage it from the slot and slide out the power switch from the system.
Figure 10. Removing and Installing the Power Switch
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