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52
53
54
55
PERp8
PERN8
GND
GND
57
58
59
60
PERn9
GND
GND
PERp10
62
63
64
65
GND
GND
PERp11
PERn11
67
68
69
70
GND
PERp12
PERn12
GND
72
73
74
75
PERp13
PERn13
GND
GND
76
77
78
79
80
PERp14
PERn14
GND
GND
PERp15
81
82
PERn15
GND
NOTE: x1 PCI Express uses pins 1-18
x4 PCI Express uses pins 1-32
x8 PCI Express uses pins 1-49
x16 PCI Express uses pins 1-8
PCI Express
x1, x4, x8, and x16 PCI Express Connector
Pin B
Pin
Signal Pin Signal Pin Signal Pin Signal Pin Signal
1
2
3
4
5
+12V
+12V
RSVD
GND
SMCLK
6
7
8
9
10
SMDAT
GND
+3.3 V
JTAG1
3.3vAux
11
12
13
14
15
WAKE#
RSVD
GND
PETp0
PETn0
16
17
18
19
20
GND
GND
GND
PETp1
PETn1
21
22
23
24
25
GND
GND
PETp2
PETn2
GND
26
27
28
29
30
GND
PETp3
PETn3
GND
RSVD
31
32
33
34
35
PRSNT2#
GND
PETp4
PETn4
GND
36
37
38
39
40
GND
PETp5
PETn5
GND
GND
41
42
43
44
45
PETp6
PRTn6
GND
GND
PETp7
46
47
48
49
50
PETn7
GND
PRSNT2#
GND
PETp8
51 PETn8 56 GND 61 GND 66 PETp12 71 PETn13
200 Appendix A Connector Pin Assignments