Contents

14.

PCI Configuration Space Map

59

15.

Interrupts

60

16.

PCI Interrupt Routing Map

62

17.

Back Panel Connectors Shown in Figure 19

65

18.

Back Panel Connectors Shown in Figure 20

67

19.

D925XCV Component-side Connectors Shown in Figure 21

69

20.

D925XBC Component-side Connectors Shown in Figure 22

71

21.

ATAPI CD-ROM Connector

72

22.

Front Panel Audio Connector

72

23.

Front Chassis Fan and Rear Chassis Fan Connectors

72

24.

Processor Fan Connector and Auxiliary Rear Fan Connector

72

25.

Chassis Intrusion Connector

73

26.

SCSI Hard Drive Activity LED Connector (Optional)

73

27.

Serial ATA Connectors

73

28.

Auxiliary Power Output Connector

73

29.

Main Power Connector

75

30.

ATX12V Power Connector

75

31.

Alternate Power Connector

75

32.

Auxiliary Front Panel Power/Sleep LED Connector

76

33.

Front Panel Connector

76

34.

States for a One-Color Power LED

77

35.

States for a Two-Color Power LED

77

36.

BIOS Setup Configuration Jumper Settings

80

37.

DC Loading Characteristics

85

38.

Fan Connector Current Capability

86

39.

Thermal Considerations for Components

89

40.

Desktop Board D925XCV/D925XBC Environmental Specifications

90

41.

Safety Regulations

91

42.

EMC Regulations

91

43.

Product Certification Markings

94

44.

BIOS Setup Program Menu Bar

96

45.

BIOS Setup Program Function Keys

96

46.

Boot Device Menu Options

99

47.

Supervisor and User Password Functions

101

48.

BIOS Error Messages

103

49.

Uncompressed INIT Code Checkpoints

105

50.

Boot Block Recovery Code Checkpoints

105

51.

Runtime Code Uncompressed in F000 Shadow RAM

106

52.

Bus Initialization Checkpoints

109

53.

Upper Nibble High Byte Functions

109

54.

Lower Nibble High Byte Functions

110

55.

Beep Codes

111

ix

Page 9
Image 9
Intel D925XBC, D925XCV specifications Chassis Intrusion Connector

D925XBC, D925XCV specifications

The Intel D925XBC and D925XCV are motherboards designed for Intel's LGA 775 socket, targeted primarily at the desktop market during the mid-2000s. These motherboards support Intel's innovative 800 MHz Front Side Bus and provide a robust platform for various computing applications, including gaming and multitasking.

One of the standout features of the D925XBC and D925XCV is their compatibility with Intel's Pentium 4 and Pentium D dual-core processors. These processors deliver impressive performance, especially for users engaging in demanding tasks such as video editing and 3D rendering. The support for dual-channel DDR2 memory allows for increased bandwidth and improved overall system performance, accommodating up to 8 GB of memory in total.

The motherboards are equipped with the Intel 925X chipset, which integrates advanced technologies. This chipset supports Intel's Enhanced Memory 64 Technology (EM64T), allowing for more efficient processing power and better resource management. The presence of the I/O Controller Hub (ICH6) also enhances connectivity options, including SATA 3.0 Gbps interfaces for faster data transfer rates and improved storage capabilities.

Regarding expansion and connectivity, both motherboards feature multiple PCI Express slots along with PCI slots, allowing users to customize their systems according to their needs. This expandability is essential for gamers and professionals looking to add advanced graphics cards and other peripherals. Additionally, these boards come with integrated audio, ensuring satisfactory sound quality without the need for additional sound cards.

The D925XBC and D925XCV motherboards also include integrated Ethernet controllers, supporting fast network connectivity essential for gaming and high-speed internet access. With multiple USB ports available, users can connect a wide variety of devices easily, enhancing the flexibility of their setups.

In terms of form factor, both boards follow the ATX layout, providing compatibility with a broad range of computer cases. This ensures ease of installation and upgrades while promoting good airflow and optimal thermal management for the components installed.

Overall, the Intel D925XBC and D925XCV motherboards integrate essential features and technologies that provide a solid foundation for desktop computing during their time. With strong processing capabilities, expandability, and good connectivity options, these boards were well-received by users looking for reliable performance and versatility in their systems.