Appendix B - System Error Message

When the BIOS encounters an error that requires the user to correct something, either a beep code will sound or a message will be displayed in a box in the middle of the screen and the message, PRESS F1 TO CONTINUE, CTRL-ALT-ESC or DEL TO ENTER SETUP, will be shown in the information box at the bottom. Enter Setup to correct the error.

B.1 POST Beep

There are two kinds of beep codes in the BIOS. One code indicates that a video error has occured and the BIOS cannot initialize the video screen to display any additional information. This beep code consists of a single long beep followed by three short beeps. The other code indicates that a DRAM error has occured. This beep code consists of a single long beep.

B.2 Error Messages

One or more of the following messages may be displayed if the BIOS detects an error during the POST. This list indicates the error messages for all Awards BIOSes:

CMOS BATTERY HAS FAILED

The CMOS battery is no longer functional. It should be replaced.

Caution:

Danger of explosion if battery incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the battery manufacturer’s instructions.

CMOS CHECKSUM ERROR

Checksum of CMOS is incorrect. This can indicate that CMOS has become corrupt. This error may have been caused by a weak battery. Check the battery and replace if necessary.

DISPLAY SWITCH IS SET INCORRECTLY

The display switch on the mainboard can be set to either monochrome or color. This indicates the switch is set to a different

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DFI PM12-EL, PM12-EC user manual Post Beep, Error Messages, Cmos battery is no longer functional. It should be replaced

PM12-EC, PM12-EL specifications

The DFI PM12-EL and PM12-EC are advanced industrial motherboards designed for versatile applications in demanding environments. These motherboards reflect DFI's commitment to quality and innovation, making them a preferred choice for various sectors such as automation, transportation, and embedded systems.

One of the standout features of the PM12-EL and PM12-EC is their support for Intel's 8th generation Core processors. This allows for exceptional performance in processing tasks, enhanced multitasking capabilities, and improved power efficiency. The integration of Intel technology ensures that these motherboards can handle intensive workloads, making them ideal for embedded applications requiring significant computational power.

In terms of connectivity, both models are equipped with multiple I/O options. They include a variety of USB ports, HDMI, and LVDS outputs, enabling seamless integration with various peripherals and devices. Additionally, they come with multiple Ethernet ports, facilitating high-speed networking crucial for real-time data processing and communication in industrial environments.

The DFI PM12-EL and PM12-EC boast robust build quality designed for durability. Their thermal management capabilities are particularly noteworthy, utilizing advanced heat dissipation technologies to maintain optimal operating temperatures. This becomes essential in scenarios where the system may be exposed to extreme conditions, ensuring reliability and longevity.

Another critical characteristic of these motherboards is their support for extended temperature ranges, making them suitable for use in harsh environments. This feature, combined with their sturdy design, ensures that the PM12 series can function effectively in various applications, from outdoor installations to factory floors.

The PM12-EL focuses on embedded applications and provides features like software configurable BIOS settings and a multitude of expansion slots for added functionality. On the other hand, the PM12-EC is tailored more toward IoT applications with enhanced wireless connectivity options, making them ideal for modern smart network setups.

Overall, the DFI PM12-EL and PM12-EC represent a fusion of cutting-edge technology, rugged design, and extensive connectivity features. They empower industries to adopt advanced computing solutions that can withstand rigorous demands while delivering outstanding performance. As industries increasingly move towards automation and the Internet of Things, DFI’s motherboards emerge as reliable foundations for developing innovative applications.