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 dc7800 tower manual PCI Express Connectors, PCI Express Bus Connector Pinout

dc7800 tower specifications

The HP dc7800 Tower is a powerful desktop computer designed for professional and enterprise environments. Known for its stability, performance, and versatility, this model has secured its place in a variety of business settings. Launched in the mid-2000s, it embodies HP’s commitment to quality and innovation.

One of the main features of the HP dc7800 is its form factor. The tower configuration allows for easy upgrades and maintenance, providing ample space for additional hard drives, memory, and other components. This level of accessibility makes it ideal for businesses that need to adapt their systems to changing requirements.

The dc7800 is powered by Intel's Core 2 Duo processors, offering dual-core technology that enhances multitasking capabilities. With clock speeds ranging from 1.8 GHz to 3.0 GHz, this system can handle demanding applications with relative ease. It also supports Intel's vPro technology, which allows for remote management and security features, making it an excellent choice for organizations prioritizing IT control.

Another notable characteristic is the support for up to 8GB of DDR2 RAM. This allows for efficient data processing and improved performance when running multiple applications simultaneously. Additionally, the dc7800 features multiple storage options, accommodating both SATA hard drives and solid-state drives, which can significantly enhance boot times and overall system responsiveness.

Connectivity options on the HP dc7800 are robust. It includes a variety of USB ports, audio jacks, and optional legacy ports, ensuring compatibility with a wide range of peripherals and accessories. Networking capabilities are also prominent, with built-in Gigabit Ethernet providing high-speed internet access.

Furthermore, the desktop tower is designed with energy efficiency in mind. It meets ENERGY STAR certification standards, which not only helps reduce operational costs but also minimizes environmental impact.

Overall, the HP dc7800 Tower embodies a blend of performance, expandability, and energy efficiency, making it a reliable choice for businesses in need of a robust desktop solution. With its legacy of dependability and its suite of modern technologies, it continues to serve as a valuable asset in enterprise environments.