Bios Front-panel Power LED Codes, Type Pattern

4 Error Messages and Beep Codes

4.1BIOS Front-panel Power LED Codes

The front-panel power LED blinks off and on to display messages. For example, the power LED is on when the system is powered on, and blinks off for 0.5 second when processor initialization is complete. In addition, whenever a recoverable error occurs during POST, the BIOS causes the front-panel power LED to blink an error message describing the problem (see Table 32).

Table 31. Front-panel Power LED Blink Codes

Type	Pattern

Processor initialization complete	On when system powers up, then off for 0.5 second.

POST complete	On when system powers up, then off for 0.5 second.

BIOS update in progress	Off when update begins, then on for 0.5 second, then off for 0.5
	second; pattern repeats until BIOS update is complete.

Video error	On-off (0.5 second each) two times, then 3.0 second pause (off)
	between on-off blink pattern; repeat entire pattern (two on-off
	blinks and pause) until system is powered off.

Memory error	On-off (0.5 second each) three times, then 3.0 second pause (off)
	between on-off blink pattern; repeat entire pattern (three on-off
	blinks and 3-second pause) until system is powered off.

Thermal warning	On-off (0.5 second each) four times, then 3.0 second pause (off)
	between on-off blink pattern; repeat entire pattern (four on-off
	blinks and 3-second pause) until 16th on blink, then end.

D945GCLF2 specifications

The Intel D945GCLF2 is a compact and efficient motherboard designed for the Intel Atom processor family, particularly suited for low-power, cost-sensitive systems. This mini-ITX form factor board was released as a part of Intel's D945 series, targeting small form factor PCs, embedded systems, and home theater PC (HTPC) builds.

One of the standout features of the D945GCLF2 is its support for the Intel Atom N270 processor, a dual-core CPU that operates at a low thermal design power (TDP) of just 4 watts. This makes the board ideal for users looking to build energy-efficient systems without compromising on performance. The motherboard supports up to 2GB of DDR2 RAM, utilizing a single-channel memory architecture, which, while modest by today’s standards, suffices for basic computing tasks such as browsing, document editing, and media playback.

In terms of connectivity, the D945GCLF2 integrates a variety of I/O ports that enhance usability. It features four USB 2.0 ports, one PCI slot, and an IDE connector, catering to older peripherals while also allowing for the installation of additional components like graphics cards and network adapters. The onboard Intel Graphics Media Accelerator 950 provides adequate graphics performance for everyday activities and even supports HD video playback, making it a solid choice for multimedia applications.

Incorporating Intel's Advanced Configuration and Power Interface (ACPI) technology, the D945GCLF2 allows for efficient power management, giving users the flexibility to optimize their system's energy consumption. The board also includes essential connectivity options such as Ethernet through a 10/100 LAN port, facilitating wired networking capabilities.

Furthermore, the D945GCLF2 is equipped with multiple storage options; it provides support for Serial ATA (SATA) devices, allowing for faster data transfer rates compared to traditional PATA drives. The BIOS is user-friendly and offers a range of settings for users looking to tweak their system's performance.

Overall, the Intel D945GCLF2 motherboard is a robust solution for anyone looking to build a low-cost, low-power computing system. Its combination of small form factor, energy efficiency, and decent performance makes it suitable for a variety of applications, from basic user tasks to serving as the core of a compact home theater setup. Despite its age, the D945GCLF2 remains relevant for specific, budget-friendly builds, showcasing Intel's legacy in innovative motherboard design.