CAUTION: Never operate your system with the cooling shroud removed. The system may get overheated quickly,resulting in shutdown of the system and loss of data.1. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet andperipherals.2. If applicable, rotate the system feet inward and lay the system on its side on a flat surface.NOTE: For systems installed with the wheel assembly, ensure that you lay the system on a sturdy, stablesurface with the wheel assembly extending off the edge of the surface.3. Open the system.4. Lift the cooling shroud away from the system.Figure 19. Removing and Installing the Cooling Shroud1. cooling shroud2. chassis intrusion-switch3. slots (2)4. tabs on the system cooling fan (2)5. chassis intrusion-switch connector on thesystem boardInstalling The Cooling ShroudCAUTION: Many repairs may only be done by a certified service technician. You should only performtroubleshooting and simple repairs as authorized in your product documentation, or as directed by the online ortelephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by yourwarranty. Read and follow the safety instructions that came with the product.53