Intel LGA775 user manual CN2, J1, J10, J13 Serial Ports

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INSTALLATIONS

CN2, J1, J10, J13: Serial Ports

CN2 (COM1) is a DB-9 connector, while J1 (COM2), J10 (COM3) and J13 (COM4) are pin headers.

COM1 COM2/COM3/COM4

Signal Name

DCD, Data carrier detect

RXD, Receive data

TXD, Transmit data

DTR, Data terminal ready

GND, ground

Pin #

1

2

3

4

5

Pin #

6

7

8

9

10

Signal Name

DSR, Data set ready

RTS, Request to send

CTS, Clear to send

RI, Ring indicator

Not Used

J1 (COM2) is jumper selectable for RS-232, RS-422 and RS-485.

Pin #

1

2

3

4

5

6

7

8

9

10

Signal Name

RS-232

R2-422

 

RS-485

DCD

TX-

 

DATA-

RX

TX+

DATA+

TX

RX+

NC

DTR

RX-

 

NC

Ground

Ground

 

Ground

DSR

RTS-

NC

RTS

RTS+

 

NC

CTS

CTS+

 

NC

RI

CTS-

 

NC

NC

NC

 

NC

2801550 User’s Manual

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Contents 2801550 Acknowledgments Table of Contents This page is intentionally left blank Product Description IntroductionChecklist ATX SpecificationsBoard Dimensions Installations ATX Power Installation Installing the CPUInstalling the Memory Supported DDR Dimm ConfigurationsLock Setting the Jumpers Jumper Locations on JP4 Clear Cmos Contents Configuring the CPU FrequencyJP5 10/100Mb LAN Enable/Disable Connectors on Connector Locations on FDD1 Floppy Drive Connector ATX1 ATX Power Supply ConnectorIDE1 Primary IDE Connector Signal Name IDE1, IDE2 Eide ConnectorsFAN1 CPU Fan Power Connector FAN2 Chassis Fan Power ConnectorCN1 PS/2 Keyboard and PS/2 Mouse Connectors CN2, J1, J10, J13 Serial Ports CN4 VGA CRT Connector CN3 Parallel Port ConnectorCN5 USB and 10/100Mb LAN RJ45 Connectors CN6 USB and Gigabit LAN RJ45 ConnectorsCN7 Line Out, Line In, Mic Connector J2 Digital 4-in 4-out I/O Connector J4 IrDA ConnectorJ5 ATX 12V Power Connector J11 External Audio Connector J9 CD-In Audio ConnectorJ12 USB Connector J14 Wake on LAN ConnectorSpeaker Pins 1 J15 System Function ConnectorSMI/Hardware Switch Pins 6 Sample Code Watchdog Timer ConfigurationNone OUT Bios Setup Bios Introduction Bios Setup Phoenix AwardBIOS Cmos Setup Utility Date Standard Cmos SetupTime IDE Primary HDDs / IDE Secondary HDDsDrive a / Drive B Halt On VideoAdvanced Bios Features Delay Prior to ThermalLimit Cpuid MaxVal Quick Power On Self Test Hard Disk Boot PriorityFirst/Second/Third Boot Device Boot Other DeviceBoot Up NumLock Status Boot Up Floppy SeekTypematic Rate Setting Typematic Delay MsecOS Select for Dram 64MB MPS Version Control for OSReport No FDD For WIN Small Logo EPA ShowAdvanced Chipset Features AGP Aperture Size MB IDE Integrated PeripheralsOnChip Primary/Secondary PCI IDE IDE HDD Block ModeIDE Primary/Secondary Master/Slave PIO IDE Primary/Secondary Master/Slave UdmaParallel Port Mode Uart Mode SelectAC97 Audio CSA LAN Giga-LANPower Management Power Management SetupAcpi Function Video Off MethodHDD Power Down Suspend ModePower On by Ring Resume by AlarmReload Global Timer Events PNP OS Install PNP/PCI ConfigurationsReset Configuration Data Resources Controlled byPC Health Status CPU Clock Ratio Frequency/Voltage ControlAuto Detect PCI Clk Spread SpectrumLoad Setup Defaults Load Fail-Safe DefaultsSet Supervisor/User Password Save & Exit SetupThis page is intentionally left blank Drivers Installation Intel 865G Chipset Software Intallation Utility Drivers Installation Drivers Installation Intel 865G Chipset Graphics Driver Drivers Installation Realtek AC97 Codec Audio Driver Installation Intel PRO LAN Drivers Installation O Port Address Map AppendixInterrupt Request Lines IRQ Global American Inc

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.