ADLINK NuPRO-850 Motherboard Installation and Configuration Guide

Standard CMOS: date, time, hard disk parameters, floppy drive, etc.

Advanced BIOS Features: Startup sequence, CPU characteristics (hyper threading, cache), virus warnings, etc.

Advanced Chipset Features: Memory timing, AGP settings, integrated graphics card memory allocation, LVDS panel resolution selection.

Integrated peripherals: IDE/SATA mode, serial parallel port, USB controller, audio, network card, etc.

Power Management Setup：ACPI、 Wake up event, power button behavior.

PnP/PCI configurations: PCI interrupt allocation, IRQ resources.

Hardware Monitor: Monitor CPU temperature, fan speed, and voltage.

Important notice: If the setting is incorrect and cannot be started, you can use JP1 jumper (Clear CMOS) to clear the setting and restore the default value.

Driver installation process (Windows XP/2000)

Main directories in the driver CD:

Chipset driver:  NuPRO  NuPRO-850  chipset  Setup. exe

Graphics card driver:  NuPRO  NuPRO-850  VGA  SETUP.EXE

Network card driver:  NuPRO  NuPRO-850  LAN  pro2kxpme.exe

Watchdog Tools:  NuPRO  NuPRO-850  HRWDT.EXE

Suggested installation sequence:

First, install the Windows operating system and install the latest service pack.

Run the chipset driver (Intel 875P/6300ESB INF file).

Install VGA driver (ATI Mobility driver).

Install LAN driver (Intel 82547GI driver).

Install additional drivers as needed.

Restart the system after installing all drivers.

Watchdog Timer (WDT) Programming

The watchdog of NuPRO-850 is integrated into the 6300ESB South Bridge and is a two-stage timer that supports WDT mode and free running mode. Its main features are:

The first timeout (35 bit countdown counter reset to zero) generates an internal interrupt (IRQ or SMI).

If the interrupt fails to reload, the second segment will timeout and output the WDT_TOUT # signal (low level), forcing the system to reset.

The timing resolution can be set to 1 μ s~1s or 1ms~10 minutes (through a prescaler).

It can be enabled/disabled through software and supports locking configuration to prevent accidental changes.

Programming steps description (based on PCI configuration registers):

Determine the base address register (BAR) of WDT, usually offset 10H for PCI device 29 function 4.

Set preload value 1 (first segment) and preload value 2 (second segment) registers (BAR+00H and BAR+04H), which need to be unlocked before writing (write 80H and 86H to BAR+0CH).

Configure WDT control registers (offset 60H-61H), set output enable, prescaler, and interrupt types.

Set the working mode (WDT or free run) in the WDT latch register (offset 68H), enable WDT and lock (optional).

Regularly reload the counter (write 1 to the RELOAD bit of BAR+0CH), which needs to be unlocked before operation.

ADLINK provides the testing tool HRWDT.EXE under DOS (located on CD  HIPDRV  WDT  HRWDT), run hrwdt/? View Help. You can also download the WDT demo program for Windows from the Intel website.

GPIO control: The WDT_TOUT # signal is multiplexed with GPO32, and the corresponding bit needs to be set to 0 by offsetting the GPIO base address (480H) by 30H to select the WDT_TOUT # function. The WDT LED is controlled by GPO25 and can be set to remain on or blink (approximately 0.5Hz).

EPCI-X bus characteristics

NuPRO-850 complies with PICMG 1.2 specification and provides two independent buses through three PCI connectors:

Bus-A: 64 bit/66MHz PCI-X bus, suitable for high bandwidth peripherals such as SCSI, Fibre Channel, and high-speed network cards.

Bus-B: 32-bit/33MHz PCI bus, compatible with traditional PCI devices.

Key signal description:

VIO key control: The motherboard monitors the VIO voltage (3.3V or 5V) provided by the backplane and automatically adapts to the I/O level.

M66EN/PCIXCAP: Used to configure bus mode (PCI or PCI-X).

PRSNT #: Backplane presence detection, connected to GP25/GP26 of Super I/O.

PME #: Supports PCI power management event wake-up.

+3.3Vox: The motherboard itself generates 3.3Vox from+5V or+5V, without relying on the backplane to provide it.

When designing the backplane, it is necessary to ensure consistency with the pin definitions of NuPRO-850 (detailed table provided in the manual), and pay attention to the wiring of power control (PSON #, PWRBT #, etc.). If the backplane does not have+5Vaux, an external switch is required to control the power supply.

Common troubleshooting

Possible causes and countermeasures of the phenomenon

Check if the CPU and memory are installed correctly when there is no display when powered on; Clear CMOS (JP1); Confirm graphics card output (if using a dedicated graphics card, it needs to be plugged into an AGP slot)

The system cannot start (fan running but no POST). Check if the ATX 12V 4-pin power supply (PN1) is properly connected; Is the CPU heatsink tightly compressed; Is the memory compatible

IDE hard drive cannot recognize and check the direction of the cable and the master-slave jumper; Check if IDE device is enabled in BIOS

Check the network cable if the gigabit network card is not working; Confirm that the LAN controller is enabled in BIOS; Install the correct driver (82547GI)