Note: Ensure that the intrusion switch cable is routed through the cable clip and the pre-cut slot. 
Otherwise, the cable may slide under the fan cage, the contact surface between the fan cage and 
the system board may get uneven, and the fan connection may get loose. 
a.  Insert the intrusion switch onto the holder on the fan cage and push it in the direction as shown 
until it is fully seated.
b.  Fix the intrusion switch cable into the cable clip.
c.  Route the cable into the fan cage through the pre-cut slot on the fan cage bottom.
d.  Insert the intrusion switch connector into the connector keyhole, and move it in the shown 
direction until it is fully seated.
Step 4.  Install the fan cage back into the chassis. See “Install the system fan cage” on page 370.
Step 5.  Install system fans into the fan cage. “Install a system fan” on page 366
After you finish
Complete the parts replacement. See “Complete the parts replacement” on page 381.
Chapter 4. Hardware replacement procedures 243