ADLINK NuPRO-935A Industrial Motherboard Debugging and Maintenance Guide

According to the manual definition, the short-circuit combination is as follows:

RS-232 (default): JP1 (1-3, 2-4), JP2 (1-3, 2-4), JP3 (1-2), JP4 (1-3, 2-4)

RS-422：JP1(3-5,4-6), JP2(3-5,4-6), JP3(3-4), JP4(1-3,2-4)

RS-485 (two-wire half duplex): JP1 (3-5, 4-6), JP2 (3-5, 4-6), JP3 (5-6), JP4 (3-5, 4-6)

RS-485+(with automatic direction control): Similar to RS-485, but with a different JP4 connection, please refer to the manual table for details.

In addition, JP5 is used to clear CMOS - when BIOS settings are incorrect and cannot start, move the jump cap from 1-2 (Normal) to 2-3 (Clear CMOS), power on for a few seconds, and then move it back to restore factory settings.

Chapter 4: Power Connection and System Panel Wiring

NuPRO-935A requires a stable+12V power supply. In addition to the standard ATX 20/24 pin main power supply, it must be connected to CN7 (ATX 12V 4-pin power interface), otherwise the CPU will not be able to obtain sufficient current, resulting in the system being unable to start or restarting frequently.

The system panel connector (CN1) integrates power indicator light, hard disk indicator light, reset button, power switch, and buzzer signal. Special attention:

Short circuit control of ATX PSON (pin 8) and GND (pin 6) for soft on/off.

Connect the power button (pins 19-20) to the computer case's power button.

If using ATX power supply, it is necessary to ensure that the ATX power pack (pins 6-10) in CN1 is connected correctly, otherwise pressing the switch will not power on.

Chapter 5: BIOS Deep Configuration - From Startup Optimization to Remote Management

NuPRO-935A uses AMI BIOS (version 8), press the "Del" key to enter the settings interface when booting up. The following are several key configuration items that directly affect system stability and functionality.

5.1 IDE/SATA working mode

In "Advanced" → "IDE Configuration", SATA Configuration can be selected as "Disabled", "Compatible", or "Enhanced".

Compatible mode: maps SATA to a traditional IDE channel, suitable for installing older operating systems (such as Windows XP) without the need for AHCI drivers.

Enhanced mode: Fully utilize SATA II (3Gbps) performance, recommended for Windows 7 and above systems.

If the system mounts multiple IDE devices, the PIO/UDMA mode can be manually set in "Primary/Secondary IDE Master/Slave".

5.2 Remote Access and Serial Port redirection

For unmanned or remote debugging scenarios, BIOS provides "Remote Access Configuration":

Enable 'Remote Access' and select COM1 or COM2 as the redirect port.

Set baud rate (optional 115200, 57600, etc.), flow control (Non/Hardware/Software), and terminal type (ANSI/VT100).

The redirection after BIOS POST can be set to "Always" to capture POST error messages throughout the process and send them to the remote terminal through the serial port.

Note: If the serial port address is changed in Super IO Configuration, the Remote Access option will only be updated after saving and restarting.

5.3 Power Management and ACPI Settings

In "Chipset" → "Advanced Chipset Settings":

Restore on AC Power Loss: Set the behavior after mains power is restored - "Power On" automatically turns on, "Last State" restores the state before power failure, and "Power Off" remains turned off.

Power Button Mode: can be set to "On/Off" (immediately shut down) or "Suspend" (short press to suspend, long press for 4 seconds to shut down).

5.4 Onboard Gigabit Ethernet card PXE boot

If network startup is required, set GbE LAN Boot to "Enabled" in the "South Bridge Configuration" and prioritize "LAN" in the Boot Device Priority.

Chapter 6: Driver Installation Sequence and Special Precautions

The driver for NuPRO-935A is located in the accompanying ADLINK All in One DVD, and the installation sequence strictly follows: chipset driver → display driver → network card driver → ISA driver (if using an ISA card) → TPM driver → audio driver.

ISA driver (ITE8888 bridge): As Windows does not automatically recognize this PCI to ISA bridge device, the driver needs to be manually updated

Open Device Manager and find 'Other PCI Bridge Devices'.

Right click and select 'Update Driver', manually specify the path to the NuPRO NuPRO-935A ISA folder on the DVD.

After installation, the ISA bus device can only work normally (note: this bridge does not support DMA, only PIO).

TPM driver: Only NuPRO-935A/DV models are equipped with Infineon SLB 9635 TPM 1.2 chip. After enabling "Trusted Computing" in BIOS, install the corresponding driver to achieve hardware encryption.

Audio driver: DB-Audio2 daughter card can be optionally selected. The "HDA Controller" (South Bridge Configuration) needs to be enabled in the BIOS before installing the audio driver.

Chapter 7: Watchdog Timer - The Key to System Self healing

The NuPRO-935A is equipped with a programmable watchdog based on the IT8718 Super I/O chip, which supports timeout of 1-255 seconds or 1-255 minutes, and will generate a system reset after timeout. The appendix of the manual provides complete C language example code, and the core process is as follows: