Technical Reference
57
2.10.1 I/O Shield
The back panel I/O shield for the Desktop Board D845EPI must meet specific dimension and
material requirements. Systems based on this Desktop Board need the back panel I/O shield to
pass emissions (EMI) certification testing. Figure 12 shows the critical dimensions of the I/O
shield. Dimensions are given in inches [millimeters], to a tolerance of ±0.020 inches
[0.508 millimeters].
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. See Section 1.5 for
information about the ATX specification.
#
INTEGRATOR’S NOTE
An I/O shield compliant with the ATX chassis specification 2.03 is available from Intel.
OM12352
0.063±0.005
[1.600±0.120]
8X R0.5 MIN
0.567
[14.400]
0.465
[11.811]
0.027
[0.690]
0.519
[13.190]
3x Dia 0.330 [8.380]
6.390 Ref
[162.300]
0.787±0.010 TYP [20±0.254]
0.039 Dia. [1.000]
0.884
[22.450]
0.276
[7.012]
0.465
[11.811]
0.567
[14.400]
1.807
[45.892]
2.079
[52.804]
5.010
[127.250]
5.732
[145.584]
0.447
[11.345]
1.195
[30.360]
0.00
0.00
Pictorial
View
0.621
[15.770]
1.89
Ref
Figure 12. I/O Shield Dimensions
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