3. Open the system.
4. Insert the chassis-intrusion switch into the chassis-intrusion switch slot and slide it to secure it.
5. Connect the chassis-intrusion switch cable to the system board.
6. Close the system.
Inside The System
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.
Figure 8. Inside the System
1. hard drive
2. hard-drive bay
3. system board
4. heat-sink assembly
5. expansion-card latch
6. system fan
7. power supply unit
8. hard-drive cage
9. hard-drive cage latch
10. power switch
11. I/O panel
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