
Figure 2–1 shows the AlphaPC 164SX motherboard and its components, and Table 2–2 describes these components.
Figure 2–1  AlphaPC 164SX Switch/Connector/Component Location
| U56 | 
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 | XU59 | 
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 | U55 | 
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 | SW1 | 
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 | Q7 | 
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 | Q8 | 
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 | Q4 | 
 | Q5 | 
 | U51 | |||
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 | XB1 | ||||
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 | J23 | 
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 | J22 | 
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| J20 | U53 | U54 | J21 | 
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 | U52 | 
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 | J19 | 
 | U50 | 
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 | U49 | 
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 | J18 | 
 | X3 | 
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| X2 | 
| X1 | 
| J16 | 
| U45 | 
U46
U48
J17
U47
J15
| J14 | 
| 21164PC | 
| U31 | 
| U20 | 
 | U21 | 
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 | U22 | 
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| U10 | 
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 | U11 | 
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 | U2 | 
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U36
 U37
 U37
 U38
U38
U32
| J5 | J6 | 
U28
U27
U25
U23
U24
U17
U18
U12
U13
U7
U5
U3
U4
U1
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 | U44 | 
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| U40 | U41 | U42 | U43 | 
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 | U39 | ||||||||
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 | U35 | 
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 | U34 | 
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21174
U33
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 | U30 | 
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 | U29 | 
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| J7 | J8 | J9 | J10 | 
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| U26 | 
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 | U19 | 
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 | U15 | 
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 | U14 | 
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 | U8 | 
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 | U9 | 
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J11
U16
U6
| J13 | 
| J4 | 
J3
J1
J2
