Installing and Replacing Desktop Board Components

Table 21. Front Panel Header

 

 

 

 

In/

 

 

Pin

 

Signal

 

Out

 

Description

 

 

 

 

 

 

 

 

 

Hard Drive Activity LED

1

 

HD_PWR

 

Out

 

Hard disk LED

 

 

 

 

 

 

 

 

 

pull-up to +5 V

3

 

HDA#

 

Out

 

Hard disk active

 

 

 

 

 

 

LED

 

 

 

 

 

 

 

Reset Switch

5

Ground

 

Ground

7

FP_RESET#

In

Reset switch

 

 

 

 

 

Power

 

 

 

 

9

+5 V

 

Power

 

 

 

 

 

 

In/

 

Pin

Signal

Out

Description

 

 

 

 

 

Power LED

 

 

 

 

 

2

HDR_BLNK_GR

Out

Front panel

 

N

 

green LED

 

 

 

 

4

HDR_BLNK_YE

Out

Front panel

 

L

 

yellow LED

 

 

 

 

On/Off Switch

6

FPBUT_IN

In

Power switch

 

 

 

 

8

Ground

 

Ground

 

 

 

 

 

Not Connected

 

 

 

 

10

N/C

 

Not connected

 

 

 

 

Figure 12. Connection Diagram for Front Panel Header

Hard Drive Activity LED Pins

Pins 1 and 3 can be connected to an LED to provide a visual indicator that data is being read from or written to a hard drive. Proper LED function requires one of the following:

A SATA hard drive connected to an onboard SATA connector

A PATA hard drive connected to an onboard PATA connector

Intel Z-U130 USB Solid State Drive (or compatible device) connected to one of the front panel USB headers

Reset Switch Pins

Pins 5 and 7 can be connected to a momentary single pole, single throw (SPST) type switch that is normally open. When the switch is closed, the board resets and runs the POST.

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Intel D945GSEJT manual Front Panel Header, Reset Switch Pins

D945GSEJT specifications

The Intel D945GSEJT is a compact motherboard designed for use in embedded systems and low-power computing applications. Released as part of Intel's 945GSE chipset family, it is equipped with a range of features and technologies that cater to the growing demand for efficient computing solutions.

At the heart of the D945GSEJT is the Intel Atom N270 processor, which operates at a frequency of 1.6 GHz. This processor is known for its low power consumption, making it an excellent choice for devices that require continuous operation without significant energy demands. The D945GSEJT operates with a thermal design power (TDP) of merely 5 watts, allowing it to run quietly and efficiently, thus extending the lifespan of the device.

In terms of memory support, the D945GSEJT features two DIMM slots that can accommodate up to 2 GB of DDR2 SDRAM. This enables adequate multitasking capabilities, allowing the system to run multiple applications simultaneously without performance degradation. Additionally, the motherboard supports a memory speed of 533 MHz and 667 MHz.

One of the key characteristics of the D945GSEJT is its integrated graphics capability, featuring the Intel Graphics Media Accelerator 950. This technology supports resolution up to 2048 x 1536 at 75Hz, making it suitable for basic graphical tasks such as web browsing and video playback. The inclusion of an array of output options like LVDS, VGA, and TV-out enhances its versatility for various display needs.

The D945GSEJT also boasts a variety of I/O ports, including six USB 2.0 ports, a parallel port, a serial port, and multiple audio connectors. This wide array of connectivity options allows users to attach peripherals like printers, keyboards, and external audio devices easily.

Moreover, the motherboard includes support for Intel’s SpeedStep technology, which dynamically adjusts processor voltage and frequency, helping to optimize power consumption based on workload demands. This capability is essential for embedded systems where power efficiency is paramount.

To summarize, the Intel D945GSEJT is a robust motherboard that combines efficient processing power with a compact footprint. Its main features include support for low power consumption via the Atom N270 processor, integrated graphics, adequate memory options, and a wide range of I/O ports. These traits make it an ideal choice for embedded applications, digital signage, and other compact computing environments.