PCI Express

x1, x4, x8, and x16 PCI Express Connector

Pin A

Pin

Signal

Pin

Signal

Pin

Signal

Pin

Signal

Pin

Signal

 

 

 

 

 

 

 

 

 

 

1

PRSNT1

6

JTAG3

11

PERST#

16

PERp0

16

PERp0

2

+12V

7

JTAG4

12

GND

17

PERn0

17

PERn0

3

+12V

8

JTAG5

13

REFCLK+

18

GND

18

GND

4

GND

9

+3.3V

14

REFCLKGND

19

RSVD

19

RSVD

5

JTAG2

10

+3.3V

15

PERn4

20

GND

20

GND

 

 

 

 

 

 

 

 

 

 

26

PERn(2)

31

GND

36

GND

41

GND

41

GND

27

GND

32

RSVD

37

GND

42

GND

42

GND

28

GND

33

RSVD

38

PERp5

43

PERp6

43

PERp6

29

PERp3

34

GND

39

PERn5

44

PERn6

44

PERn6

30

PERn3

35

PERp4

40

PERn10

45

GND

45

GND

 

 

 

 

 

 

 

 

 

 

51

GND

56

PERp9

61

GND

66

GND

66

GND

52

PERp8

57

PERn9

62

GND

67

GND

67

GND

53

PERN8

58

GND

63

PERp11

68

PERp12

68

PERp12

54

GND

59

GND

64

PERn11

69

PERn12

69

PERn12

55

GND

60

PERp10

65

 

70

GND

70

GND

 

 

 

 

 

 

 

 

 

 

76

PERp14

81

PERn15

 

 

 

 

 

 

77

PERn14

82

GND

 

 

 

 

 

 

78GND

79GND

80PERp15

Pin B information is on the next page

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.

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