Technical Reference
69
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 25
shows the I/O shield for boards with the 8-channel (7.1) audio subsystem. Figure 26 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 2.03 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]
Ø 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]
OM17814
Figure 25. I/O Shield Dimensions for Boards with the 8-Channel (7.1) Audio Subsystem
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