ADLINK NuPRO-A301 Industrial Motherboard Troubleshooting Manual

On Chip IDE Device submenu

IDE HDD Block Mode: It is recommended to enable it to improve IDE hard disk transfer efficiency.

On Chip Primary/Secondary PCI IDE: Enable primary/secondary IDE channels (NuPRO-A301 only provides the primary IDE physical interface, but the chipset supports two channels).

IDE Primary/Secondary Master/Slave PIO/UDMA: It is recommended to set all to Auto for automatic optimization by BIOS.

On Chip Serial ATA: Key Settings! Optional Disabled/Auto/Combined Mode/Enhanced Mode/SATA only.

Enhanced Mode: SATA and PATA work independently and can support up to 6 devices simultaneously (4 SATA+2 PATA), recommended for Windows XP and above systems.

Combined Mode: Maps SATA to a traditional IDE channel, suitable for older systems.

SATA Port Speed Settings: Optional GEN I (SATA-150) or GEN II (SATA-300), depending on the type of hard drive.

Onboard Device submenu

USB Keyboard Support/USB Mouse Support: It is recommended to set both to Enabled for using USB keyboard and mouse in DOS or BIOS interfaces.

AC97 Audio: If an IP-ALCS20 audio daughter card is installed, it needs to be set to Enabled.

Super I/O Device submenu (Super I/O)

Onboard FDC Controller: Enable/disable the floppy drive controller.

Onboard Serial Port 1/Port 2: Set the I/O address and IRQ for COM1/COM2. Commonly used: 3F8/IRQ4 (COM1), 2F8/IRQ3 (COM2). If there is a conflict, it can be changed to 3E8/IRQ4 or 2E8/IRQ3.

Onboard Parallel Port: Set the parallel port address (378/IRQ7 is a common standard, but 278/IRQ5 or 3BC/IRQ7 can also be selected).

Parallel Port Mode: Optional Normal, EPP, ECP, ECP+EPP. EPP/ECP can improve bidirectional transmission speed, but requires peripheral support.

PWRON After PWR Fail: Set the behavior after mains power restoration - On, Off, Former Sts. It is recommended to set the unmanned scenario to On.

Watch Dog Timer Select: Onboard watchdog time selection, options include Disabled, 10/20/30/40 seconds, 1/2/4 minutes. It is recommended to cooperate with watchdog refresh in the application, and the system will automatically reset after timeout.

4.5 Power Management Setup

ACPI Function: Must be set to Enabled to support power management for the operating system.

Power Management: Min Saving, Max Saving, and User Defined can be selected. It is recommended to set User Defined flexibly.

Video Off Method: Recommended DPMS (Display Power Management Signaling).

Suspend Mode: Set the idle time for the system to enter a suspended state (which can be set to 1-30 minutes or disabled).

HDD Power Down: Set the idle time for the hard drive to stop running (1-7 minutes or Disabled).

Soft Off by PWR-BTTN: Set to Instant Off or Delay 4 Sec.

Wake Up by PCI Card/Power On by Ring/Resume by Alarm: Enable network wake-up, MODEM wake-up, or timed power on as needed.

4.6 PnP/PCI configuration

PNP OS Installed: If the operating system supports PnP (such as Windows XP), set it to Yes and the OS will manage the resources; Otherwise set to No and managed by BIOS.

Init Display First: Optional PCI Slot (external graphics card priority) or Onboard (onboard VGA priority).

Reset Configuration Data: When installing new hardware causes a conflict that prevents startup, it can be set to Enabled to clear ESCD.

Resources Controlled By: It is recommended to maintain Auto (ESCD) and have BIOS automatically allocate interrupts and DMA. If using an old ISA card, it can be changed to Manual and IRQ/DMA can be manually retained.

4.7 PC Health Status

This page displays real-time system temperature, CPU temperature, fan speed, and key voltages (CPU Vcore, VDIMM,+12V,+5V,+3.3V, VBAT, etc.). If the temperature is too high or the voltage is abnormal (such as+12V below 11V), the power supply and heat dissipation should be checked immediately.

4.8 Frequency/Voltage Control

Auto Detect PCI Clk: It is recommended to enable it to automatically detect whether there are devices in the PCI slot. If there are no devices, do not send clock signals to reduce EMI.

Spread Spectrum: When enabled, it can reduce electromagnetic interference (by modulating clock frequency), but it may affect timing stability. The default setting is Disabled.

Chapter 5: Watchdog Timer Programming Guide

The built-in watchdog of NuPRO-A301 is implemented through the Super I/O chip (IT8712F), supporting timeouts of 1-255 seconds or minutes. The appendix of the manual provides complete assembly code examples, and the core process is as follows:

Enter extended function mode: Write 0x87 twice to I/O port 0x2E (unlock configuration register).

Select logical device: Write 0x07 to 0x2E, and then write 0x08 to 0x2F (select device 8, i.e. watchdog).

Set counting units and initial values:

Write 0x00 (in seconds) or 0x08 (in minutes) to CRF5 (register 0xF5).

Write the timeout value to CRF6 (register 0xF6) (e.g. 05h represents 5 seconds/minute).

Enable watchdog (write 0xC0 to CRF7).

Exit configuration mode: Write 0xAA to 0x2E.

In practical applications, it is necessary to periodically refresh (rewrite the count value) in the application program to prevent timeout reset. If disabled, write 0 to the count value.

Chapter 6: Driver Installation Sequence and Special Precautions