System Support

PCI Express Connectors

 

 

 

A1

A11

A12

A18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

x1 Connector

 

 

 

 

 

 

 

 

A82

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

x16 Connector

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B1

B11

B12

 

 

 

 

 

B82

 

 

Figure 4-3. PCI Express Bus Connectors

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 4-4.

 

 

 

 

 

 

 

 

 

 

 

 

 

PCI Express Bus Connector Pinout

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin

B Signal

A Signal

Pin

B Signal

A Signal

Pin

B Signal

A Signal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

01

+12 VDC

PRSNT1#

29

GND

 

PERp3

57

GND

PERn9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

02

+12 VDC

+12 VDC

30

RSVD

 

PERn3

58

PETp10

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

03

RSVD

+12 VDC

31

PRSNT2#

 

GND

59

PETn10

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

04

GND

GND

32

GND

 

RSVD

60

GND

PERp10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

05

SMCLK

+5 VDC

33

PETp4

 

RSVD

61

GND

PERn10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

06

+5 VDC

JTAG2

34

PETn4

 

GND

62

PETp11

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

07

GND

JTAG4

35

GND

 

PERp4

63

PETn11

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

08

+3.3 VDC

JTAG5

36

GND

 

PERn4

64

GND

PERp11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

09

JTAG1

+3.3 VDC

37

PETp5

 

GND

65

GND

PERn11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

3.3 Vaux

+3.3 VDC

38

PETn5

 

GND

66

PETp12

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

WAKE

PERST#

39

GND

 

PERp5

67

PETn12

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

RSVD

GND

40

GND

 

PERn5

68

GND

PERp12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

GND

REFCLK+

41

PETp6

 

GND

69

GND

PERn12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

PETp0

REFCLK-

42

PETn6

 

GND

70

PETp13

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

PETn0

GND

43

GND

 

PERp6

71

PETn13

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

GND

PERp0

44

GND

 

PERn6

72

GND

PERp13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17

PRSNT2#

PERn0

45

PETp7

 

GND

73

GND

PERn13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18

GND

GND

46

PETn7

 

GND

74

PETp14

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

19

PETp1

RSVD

47

GND

 

PERp7

75

PETn14

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

PETn1

GND

48

PRSNT2#

 

PERn7

76

GND

PERp14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

21

GND

PERp1

49

GND

 

GND

77

GND

PERn14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

22

GND

PERn1

50

PETp8

 

RSVD

78

PETp15

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23

PETp2

GND

51

PETn8

 

GND

79

PETn15

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24

PETn2

GND

52

GND

 

PERp8

80

GND

PERp15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

25

GND

PERp2

53

GND

 

PERn8

81

PRSNT2#

PERn15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

26

GND

PERn2

54

PETp9

 

GND

82

RSVD

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

27

PETp3

GND

55

PETn9

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28

PETn3

GND

56

GND

 

PERp9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4-6

 

 

 

 

 

 

www.hp.com

 

 

Technical Reference Guide

 

Page 42
Image 42
HP dc7900 manual PCI Express Connectors, PCI Express Bus Connector Pinout

dc7900 specifications

The HP dc7900 is a well-regarded desktop solution that serves as a testament to HP's commitment to performance, reliability, and user accessibility. Introduced as part of HP’s Compaq line and designed primarily for business professionals, the dc7900 combines powerful processing capabilities with a compact form factor that suits various office environments.

One of the standout features of the HP dc7900 is its robust configuration options. It typically comes equipped with Intel's Core 2 Duo or Quad processors, giving users the ability to handle demanding applications seamlessly. The inclusion of Intel's technologies, such as Intel vPro, enhances remote management and IT control, making it an ideal choice for businesses looking to streamline their operations.

The dc7900 is designed with flexibility in mind. It offers multiple form factors, including mini-tower, small form factor, and ultra-slim desktop configurations. This variety enables organizations to choose a model that best fits their workspace requirements, maximizing both efficiency and aesthetics. The small footprint models are particularly beneficial in space-constrained environments, while the mini-tower version provides expandability for future upgrades.

In terms of graphics capabilities, the HP dc7900 typically features integrated Intel graphics, with options to install discrete graphics cards for users who require enhanced visual performance. This makes the dc7900 suitable for tasks ranging from standard office applications to more graphics-intensive responsibilities.

Connectivity is another key characteristic of the HP dc7900. It is equipped with a variety of ports, including USB 2.0 and audio jacks, allowing users to connect peripherals easily. Additionally, the dc7900 supports legacy connections, making it easier for businesses with older equipment to integrate new systems without hassle.

Durability and reliability are hallmarks of the HP dc7900. Built with high-quality materials and subjected to rigorous testing, this desktop is designed to withstand the demands of a bustling office environment. Furthermore, HP's comprehensive warranty and support options assure businesses of the reliability of their investment.

The HP dc7900 is not just a powerful desktop; it’s a versatile and dependable solution for modern businesses. With its combination of performance, expandability, and solid build quality, the dc7900 remains a relevant choice for those looking to enhance their productivity and efficiency in the workplace.