Installing and Replacing Desktop Board Components 
29 
Installing the I/O Shield 
The Desktop Board comes with an I/O shield.  When installed in the chassis, the shield 
blocks radio frequency transmissions, protects internal components from dust and 
foreign objects, and promotes correct airflow within the chassis. 
Install the I/O shield before installing the Desktop Board in the chassis.  Place the 
shield inside the chassis as shown in Figure 4.  Press the shield into place so that it fits 
t
ightly and securely.  If the shield does not fit, obtain a properly sized shield from the 
chassis supplier. 
 
Figure 4.  Installing the I/O Shield