ADLINK NuPRO-842 Pentium 4 Industrial Motherboard Deployment and Debugging Guide

JP1: Select the panel voltage (+5V or+3.3V) and adjust it according to the display screen specifications.

JP2: Enable/disable LVDS output (1-2 enabled, 2-3 disabled).

Main connectors:

CN1: DVI interface (24 pins, standard TMDS signal).

CN2: LVDS interface (20 pins, supports single channel LVDS).

TTL interface: 44 pin pin header, providing RGB 24 bit data, clock, and synchronization signals.

When in use, insert the daughter card into the onboard CN15 interface (DVI dedicated connector), configure jumpers according to the monitor type, and select the appropriate display output in BIOS (the integrated graphics card needs to be set as the main display).

Common troubleshooting and engineering recommendations

Possible causes and solutions for the fault phenomenon

No display on power, CPU not installed or poor heat dissipation; The memory is not properly plugged in. Check if the CPU and memory are installed properly, and if the fan is running

Unable to recognize paired installation of memory or two different capacities using two memories of the same capacity and model, priority given to DIMM1/2

COM2 communication abnormal jumper settings do not match external devices. Adjust JP1-JP4 according to device standards (232/422/485)

Rear USB does not recognize USB port not enabled or driver not installed. Enable USB in BIOS and install chipset driver

Network failure, network card driver not installed or MAC conflict, Intel 82540EM driver installed, check LAN enabled in BIOS

Check the WDT related options in the BIOS if the watchdog fails to trigger WDT or if the timeout value is set improperly, and confirm that the application feeds the watchdog

System overheating, shutdown, insufficient heat dissipation, or fan failure. Check CPU fan and increase chassis ventilation

BIOS settings cannot save CMOS battery failure, replace CR2032 battery

Use DB-842DVI to check JP1/JP2 for incorrect display jumper voltage or enable settings, and confirm that the panel voltage matches

Environmental requirements: The working temperature should be between 5 ℃ and 55 ℃, and the air circulation inside the chassis should be ensured. Due to the use of Pentium 4 processor, the power consumption is relatively high (typically 60W+), and the power supply needs to provide sufficient+5V and+12V current.