ADLINK NuPRO-841 Industrial Motherboard Maintenance and Troubleshooting

Parallel Port Mode：SPP/EPP/ECP/EPP+ECP

5.5 Power Management Setup

ACPI Function：Enabled/Disabled

Power Management：User Define/Min Saving/Max Saving/Disabled

Video Off Method: V/H SYNC+Blank (default)/DPMS/Blank Screen

Suspend Mode: The system enters a suspended idle time

HDD Power Down: Hard Disk Shutdown Timeout Setting

Soft Off by PWR-BTTN: Instant Off/Delay 4 Sec (Long press for 4 seconds to turn off)

Power On by Ring: modem ringtone wake-up (requires ATX power supply)

Wake Up On LAN: Network wake-up (requires ATX power supply, 5VSB ≥ 720mA)

Resume by Alarm: RTC timed startup

5.6 PnP/PCI Configuration

Reset Configuration Data: Disabled/Enabled

Resources Controlled By: Auto (ESCD)/Manual (Manual allocation of IRQ/DMA)

IRQ Resources: Assign Legacy ISA or PCI/PnP devices to each IRQ

PCI/VGA Palette Snoop: Disabled (default)

5.7 PC Health Status

Real time display of onboard hardware monitoring:

CPU Warning Temperature: 50~70 ° C Alarm Threshold

Current System/CPU Temperature: Real time temperature

Current CPU/Chassis Fan Speed: Fan Speed

VDIMM/Vcore/VCC3.3V/+5V/+12V/-12V/-5V/5VSB/VBAT: Monitoring of various voltages

Shutdown Temperature: 60~75 ° C Automatic shutdown temperature (requires Windows 98 ACPI mode)

5.8 Frequency/Voltage Control

CPU Clock Ratio: 16X~22X multiplier setting

Auto Detect PCI CLK: Enabled to automatically detect PCI devices and reduce EMI

Spread Spectrum: Enabled/Disabled (reduces EMI)

5.9 Password Setting and Exit

Supervisor Password: Protect BIOS settings

User Password: Protect system startup

Disable password: Press Enter directly when prompted for password

Load Fail Safe Defaults: Load the lowest performance stable default value (for troubleshooting purposes)

Load Optimized Defaults: Load the optimal performance default values

Chapter 6: Optional IP-ALCS20 Audio Subcard Installation

NuPRO-841 provides a 9-pin audio expansion interface (CN14), which is used in conjunction with the IP-ALCS20 audio daughter card to achieve AC'97 audio functionality.

Sub card interface:

JP1 (CD-IN): 4-pin CD audio input (Left/GND/GND/Right)

CN1 (audio jack): Line_out (green), Line_in (blue), MIC (red)

CN2 (Audio Signal Connector): 9-pin, compatible with the motherboard CN14

After installation, set "AC97 Audio" to Auto in the BIOS.

Chapter 7: Quick Troubleshooting Table for Common Malfunctions

Troubleshooting steps for possible causes of fault phenomena

There is no response when powered on, and the fan does not turn. ATX 12V (CN4) is not connected. Check if CN4 is securely plugged in; Check the power output

There is power but no display. The CPU/memory is not installed properly, and the Init Display First setting is incorrect. Reinstall the CPU and memory; Check Init Display First (PCI Slot/Onboard)

Repeated system restarts or crashes, poor CPU cooling, watchdog timeout check for radiator contact; Check JP3 settings and software feeding for dogs

COM2 communication failed. JP1 jumper mode does not match the device. Reconfigure JP1 based on device type (RS-232/422/485)

Hard disk cannot recognize IDE channel disabled or PIO/UDMA setting error. Check that On Chip IDE is enabled; IDE HDD Block Mode is enabled

The network card cannot connect to the LAN chip and is disabled or there is a problem with the network cable. Check that the Onboard Lan Chip is enabled; Check the RJ-45 connection

USB device is invalid. USB Controller disabled or USB Keyboard Support not turned on. Check if USB Controller/2.0 Controller is enabled

Parallel Port Mode does not match the device and the parallel port printer is unresponsive. Attempt SPP/EPP/ECP mode; Check address settings

System time loss, CMOS battery depletion, replacement of CR2032 button battery; Reset date/time

BIOS settings error, unable to start. Improper modification caused JP2 to clear CMOS (2-3 short circuited) and restore default

AC97 Audio is not enabled or the daughter card is not installed. Set AC97 Audio to Auto in BIOS; Check the connection between CN14 and CN2