Connector Pin Assignments

PCI Express

x1, x4, x8, and x16 PCI Express Connector

Pin B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin

Signal

Pin

Signal

Pin

Signal

Pin

Signal

Pin

Signal

 

 

 

 

 

 

 

 

 

 

1

+12V

6

SMDAT

11

WAKE#

16

GND

21

GND

2

+12V

7

GND

12

RSVD

17

PRSNT2#

22

GND

3

RSVD

8

+3.3v

13

GND

18

GND

23

PETp2

4

GND

9

JTAG1

14

PETp0

19

PETp1

24

PETn2

5

SMCLK

10

3.3vAux

15

PETn0

20

PETn1

25

GND

 

 

 

 

 

 

 

 

 

 

26

GND

31

PRSNT2#

36

GND

41

PETp6

46

PETn7

27

PETp3

32

GND

37

PETp5

42

PRTn6

47

GND

28

PETn3

33

PETp4

38

PETn5

43

GND

48

PRSNT2#

29

GND

34

PETn4

39

GND

44

GND

49

GND

30

RSVD

35

GND

40

GND

45

PETp7

50

PETp8

 

 

 

 

 

 

 

 

 

 

51

PETn8

56

GND

61

GND

66

PETp12

71

PETn13

52

GND

57

GND

62

PETp11

67

PETn12

72

GND

53

GND

58

PETp10

63

PETn11

68

GND

73

GND

54

PETp9

59

PETn10

64

GND

69

GND

74

PETp14

55

PETn9

60

GND

65

GND

70

PETp13

75

PETn14

 

 

 

 

 

 

 

 

 

 

76

GND

81

PRSNT2#

 

 

 

 

 

 

77

GND

82

RSVD

 

 

 

 

 

 

78PETp15

79PETn15

80GND

Notes:

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 1-82

 

Service Reference Guide, dx7300

433611-001

A–9