Intel Desktop Board D975XBX2 Technical Product Specification 
72   
2.9.2  I/O Shield 
The back panel I/O shield for the board must meet specific dimension and material 
requirements.  Systems based on this board need the back panel I/O shield to pass 
certification testing.  
Figure 26 shows the I/O shield for boards with the 8-channel 
(7.1) audio subsystem.  
Figure 27 shows the I/O shield for boards with the 6-channel 
(5.1) audio subsystem.  Dimensions are given in inches to a tolerance of ±0.02 inches.  
The figures also indicate the position of each cutout.  Additional design considerations 
for I/O shields relative to chassis requirements are described in the ATX specification.   
 
NOTE 
The I/O shield drawings in this document are for reference only.  I/O shields compliant 
with the ATX chassis specification are available from Intel. 
Pictorial
View
20 – 0.254 TYP
[0.787 – 0.10]
162.3 REF
[6.390]
159.2 – 0.12
[6.268 – 0.005]
1.6 – 0.12
[0.063 – 0.005]
1.55 REF
[0.061]
8x R 0.5 MIN
12.04
[0.474]
7.01
[0.276]
 1.00
[0.039]
0.00
[0.00]
11.81
[0.465]
12.81
[0.504]
22.45
[0.884]
8.81
[0.347]
61.54
[2.423]
20.28
[0.799]
0.00
[0.00]
26.91
[1.059]
A
A
11.81
[0.465]
14.17
[0.558]
93.74
[3.690]
113.63
[4.473]
146.88
[5.783]
OM18540
 
Figure 26.  I/O Shield Dimensions for Boards with the 8-Channel (7.1) 
Audio Subsystem