INTRODUCTION

 

 

 

 

 

 

Specifications

 

 

 

 

 

 

 

 

 

Form Factor

ATX

 

 

 

CPU Type

LGA 775 (Intel® Pentium® 4 / Celeron D)

 

 

 

System Speed

2.53GHz~3.8GHz

 

 

 

CPU Operating

533MHz / 800MHz

 

 

 

Frequency

 

 

 

 

Green /APM

APM1.2

 

 

 

CPU Socket

LGA775

 

 

 

Chipset

Intel® 865G / 865GV Chipset

 

 

 

 

GMCH: 82865G 932-pin FC-BGA

 

 

 

ICH5: 82801EB 460-pin MBGA

 

 

 

FWH

 

 

BIOS

Award BIOS; Support ACPI function

 

 

 

Cache

256K/1MB/2MB Level 2 cache

 

 

 

VGA

82865G built-in, support CRT

 

 

 

AGP port

AGP 8X interface

 

 

 

￿￿st LAN

Intel 82551QM 10/100Mb Ethernet

 

 

 

￿￿nd LAN

Intel 82547GI (CSA port) 1 Gigabit LAN controller

 

 

 

Audio

ICH5 built-in audio controller + AC97 Codec

 

 

 

 

ALC655 (5.1 channel)

 

 

Memory type

2 x DDR 2.5V DDR400/333/266 SDRAM DIMM

 

 

 

 

module (support dual channel), Max. - 2GB

 

 

LPC I/O

Winbond 83627HF: IrDAx1 Parallel x1, COM1 (RS-232), COM2 (RS-232/ RS422/RS485), FDC 1.44MB, Hardware monitor (3 thermal inputs, 8 voltage monitor inputs, VID0-4 , 1 chassis open detection , 3 Fan Header)

Secondary IO

Fintek F81216 support COM3, COM4 (RS-232)

RTC/CMOS

ICH5 built-in

Battery

Lithium Battery

Keyboard Controller

Winbond 83627HF built-in

EPP/ECP

Yes

IDE

ICH5 built-in, IDE1, 2 (Ultra DMA 33/66/100)

CF connector

1 port, type II (use IDE2 slave)

Serial ATA connector

2 ports

Board Size

12￿ x 9.5￿

D-type connectors

PS/2 keyboard/mouse, VGA (CRT), COM1, Printer,

 

Audio, (USBx2 +RJ-45) x2

Power Connector

ATX 12V ￿ 24-pin

Expansion Slots

AGP slot, 4 PCI Slots, 2 ISA slots (2801550V has no

 

AGP slot)

PCI to ISA Bridge

Winbond 83628,83629

USB

6 ports, USB 2.0 (D-sub x 4 + pin header x 2)

IrDA

Pin header

Digital I/O

4 in / 4 out

Watchdog Timer

Yes (256 segments, 0,1,2￿255. sec/min)

System Voltages

+5V, +12V, -12V, 5VSB, -5V, 3.3V

2801550 User’s Manual

3

Page 7
Image 7
Intel LGA775 user manual Specifications, Atx

LGA775 specifications

The Intel LGA775, also known as Socket T, was a significant advancement in CPU socket design when it was introduced in 2004, primarily tailored for Intel's Pentium 4, Pentium D, Core 2 Duo, and Xeon processors. This socket provided a robust platform for users seeking performance improvements over previous socket designs, specifically the LGA 478.

One of the standout features of LGA775 is its physical layout. The socket utilizes a Land Grid Array configuration, comprising 775 pins on the motherboard that create an electrical connection with the chip. This design enhances the physical stability of the connection, reducing the likelihood of damage during component installation.

LGA775 supports a range of Intel technologies such as Dual-Core processing, which significantly improved multitasking and performance in demanding applications by integrating two cores within a single processor. This advancement laid the groundwork for more efficient computing, catering to both casual and professional users alike.

Another key technology associated with the LGA775 platform is the Enhanced Speedstep Technology (EIST), which allowed processors to adjust their voltage and frequency dynamically. This not only optimized performance but also contributed to energy efficiency, making it a more environmentally friendly choice for users.

The socket supports various front-side bus (FSB) speeds, ranging from 800 MHz to 1600 MHz, enabling higher data transfer rates between the CPU and RAM. This performance characteristic is critical for applications that require substantial memory throughput, such as video editing and gaming.

Moreover, LGA775 was compatible with a variety of chipsets that enhanced its capabilities, such as those featuring Intel's own Express Chipsets. These chipsets included integrated graphics, USB 2.0 support, and improved storage interfaces like SATA, which streamlined data management and boosted overall system performance.

Over the years, LGA775 has become a popular choice for budget and mid-range desktops, particularly because of its versatility and broad compatibility with different processor generations. Even with the advent of newer sockets, LGA775 remains a memorable part of Intel's legacy, representing a crucial stepping stone towards modern multi-core architectures.

In summary, Intel's LGA775 socket brought about comprehensive advancements in design, performance, and power management, making it a noteworthy component in the history of computing. Its influence continues to be felt, as it set the standards for subsequent socket designs that prioritize efficiency and performance.