Intel Desktop Board D925XCV/D925XBC Technical Product Specification

1.3.4Block Diagram

Figure 3 is a block diagram of the major functional areas of the boards.

 

PCI Express x1 Interface

 

 

Gigabit Ethernet

LAN

 

 

 

Controller

Connector

 

 

 

 

 

PCI Express x1 Slot 1

 

 

 

 

 

Back Panel/Front Panel

 

 

 

 

 

USB

PCI Express x1 Slot 2

D925XCV

 

 

 

 

USB Ports

 

 

 

 

 

 

only

 

 

 

 

 

 

 

 

 

 

 

LPC Bus

 

Serial Ports

Parallel ATA

Parallel ATA

 

 

 

Parallel Port

 

 

I/O

 

 

 

 

PS/2 Mouse

IDE Connector

IDE Interface

 

 

Controller

 

 

 

 

 

 

 

 

PS/2 Keyboard

LGA775

System Bus

 

 

 

 

 

Diskette Drive

Processor Socket

(800/533 MHz)

 

 

 

 

 

Connector

 

 

 

 

 

LPC Bus

 

PCI Express

 

 

Interconnect

 

 

 

 

x16 Interface

Intel 82925X

Intel 82801FR

 

8 Mbit

 

 

 

Memory Controller

I/O Controller Hub

 

Firmware Hub

PCI Express

Hub (MCH)

(ICH6-R)

 

(FWH)

x16

 

 

DMI

 

 

 

 

Connector

 

 

 

 

Bus

Intel 925X Chipset

 

 

 

 

 

 

 

 

 

 

 

Dual-Channel

 

 

 

 

LPC

TPM Component

Channel A

Memory Bus

 

 

 

 

 

 

 

 

 

 

(Optional)

SMBus

 

 

 

 

DIMMs (2)

 

Link

 

 

 

Channel B

 

 

 

Serial ATA

Serial ATA IDE

 

 

 

Audio

 

 

 

IDE Interface

Connectors (4)

DIMMs (2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IEEE-1394a Connectors

 

 

Definition

Front Panel Retasking Jack A/E

PCI Bus

 

Front Panel Retasking Jack F

(Optional)

 

 

 

High

 

 

 

 

 

 

 

 

PCI Bus

 

 

 

 

Mic In/Retasking Jack B

PCI Slot 1

 

 

 

 

 

Line In/Retasking Jack C

 

 

 

 

Audio

 

 

 

 

 

 

 

Line Out/Retasking Jack D

PCI Slot 2

SMBus

 

 

Codec

 

 

 

 

PCI Slot 3

 

 

 

 

 

 

CD-ROM

 

 

 

 

 

 

 

D925XCV

Hardware Monitoring

 

 

 

S/PDIF

PCI Slot 4

only

 

 

 

 

 

 

 

 

 

and Fan Control ASIC

 

 

 

 

Center and LFE/Retasking Jack G

= connector or socket

 

Surround Left-Right/Retasking Jack H

 

 

 

 

OM16999

 

 

Figure 3. Block Diagram

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Intel D925XCV, D925XBC specifications Block Diagram

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.