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Intel BONANZA S478 I875 ATX DDR BLKD875PBZLK User Manual

Product codes
BLKD875PBZLK
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Technical Reference 
  
75 
2.10.2 I/O 
Shield 
The back panel I/O shield for Desktop Board D875PBZ must meet specific dimension and material 
requirements.  Systems based on the Desktop Board D875PBZ need the back panel I/O shield to 
pass certification testing.  Figure 25 shows the critical dimensions of the I/O shield for boards 
equipped with the optional audio subsystem.  Figure 26 shows the critical dimensions of the I/O 
shield for boards without the audio subsystem.   
The figure indicates the position of each cutout and gives dimensions in inches to a tolerance of 
±0.02 inches.  Additional design considerations for I/O shields relative to chassis requirements are 
described in the ATX specification.  See Section 1.4 for information about the ATX specification. 
✏
 
NOTE 
The I/O shield drawings in this document are for reference only.  An I/O shield compliant with the 
ATX chassis specification 2.03 is available from Intel. 
OM16136
8x R 0.5 MIN
11.813
[0.465]
13.19
[0.519]
0.69
[0.027]
14.0
[0.567]
12.04
[0.474]
7.012
[0.276]
Ø 1.00
[0.039]
0.00
[0.00]
11.811
[0.465]
22.45
[0.884]
20. ± 0.254 TYP
[0.787 ± 0.10]
11.345
[0.447]
0.00
[0.00]
30.36
[1.195]
45.892
[1.807]
127.25
[5.010]
145.584
[5.732]
52.804
[2.079]
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]
Ø 8.38
[0.330]
Pictorial
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Figure 25.  I/O Shield Dimensions for Boards with the Optional Audio Subsystem