ADLINK NuPRO-775 Industrial Motherboard Installation and BIOS Configuration Detailed Explanation

1. Standard CMOS settings

Date/Time: Set the system clock.

IDE device: can be set to Auto automatic detection, or manually input parameters such as cylinder, head, sector, etc. Recommend using "IDE HDD Auto Detection" for automatic recognition.

Drive A/B: Soft drive type, set to None if not used.

Video: Default EGA/VGA, if using onboard VGA, keep it.

Halt On: It is recommended to set it to All, But Keyboard to avoid shutdown due to lack of keyboard.

2. Advanced BIOS features

Virus Warning: Enabling can protect the boot sector, but some diagnostic tools may trigger false alarms. Please disable such tools before running them.

CPU Internal/External Cache: must be set to Enabled, otherwise performance will significantly decrease.

CPU L2 Cache ECC Checking: Enabling (default) can improve data integrity.

Quick Power On Self Test: Enabling it can shorten POST time, but it is recommended to disable it if encountering startup issues.

Boot Device Order: Typically set to First: Floppy, Second: HDD-0, Third: CDROM.

Boot Up NumLock Status: Set to On to make the keypad default to numeric keys.

Security Option: If Setup is set, a password is required to enter BIOS; If System is set, a password is required upon startup.

OS Select for DRAM>64MB: If using OS/2, select OS/2; otherwise, select Non OS/2.

3. Advanced chipset features (key performance tuning)

SDRAM CAS Latency Time: It is recommended to set it to 2 or 3 (default 3) according to the memory configuration. If using high-quality PC-100, 2 speed increases can be set.

SDRAM Cycle Time Tras/Trc: default 6/8, can try 5/7 but stability testing is required.

SDRAM RAS to CAS Delay, RAS Precharging Time: default 3, cautiously reduce.

System BIOS Cacheable/Video BIOS Cacheable: Enabling it can improve BIOS call speed, but it can be disabled if compatibility issues occur.

Memory Hold At 15M-16M: If the old ISA card is not used, it remains disabled.

Delayed Transaction: Enabling (default) can improve PCI 2.1 compatibility.

On Chip Video Window Size: It is recommended to set it to 64MB to allocate sufficient video memory for the onboard VGA.

4. Integrated peripheral settings

On Chip Primary/Secondary PCI IDE: Both must be enabled.

IDE PIO mode: Set to Auto to allow BIOS to automatically select the optimal PIO mode (0-4).

IDE UDMA: If the hard drive supports Ultra DMA/66, set it to Auto enabled; If there is a data error, disable and downgrade.

USB Controller: Enable. If a USB keyboard is required, set USB Keyboard Support to Enabled.

Init Display First: Due to the onboard VGA, it can be set to On Chip VGA or PCI Slot (if an external graphics card is connected). Default PCI Slot.

Onboard FDC Controller: If there is no floppy drive, it can be turned off to release IRQ.

Serial port 1/2: default 3F8/IRQ4 and 2F8/IRQ3, can be adjusted if needed.

UART Mode Select: If using infrared communication, select IrDA or ASK, otherwise Normal.

Parallel port mode: It is recommended to set ECP+EPP for maximum compatibility and speed, and select DMA 3.

5. Power management

ACPI Function: Enable (if supported by the operating system) for advanced power management.

Power Management: You can choose User Define to customize the sleep timeout period.

Video Off Method: DPMS is suitable for displays that support this feature; If not supported, select Blank Screen.

Suspend Mode/HDD Power Down: Set timeout minutes according to requirements.

Soft Off by PWR-BTTN: If set to Instant Off, press the power button to immediately shut down; If set to Delay 4 Sec, press and hold for 4 seconds to shut down.

Wake Up by PCI card/Power On by Ring: Enable if network wake-up or modem wake-up is required.

Resume by Alarm: Can set a timed startup (date and time).

6. PnP/PCI configuration

Reset Configuration Data: If replacing new hardware causes a conflict and prevents startup, it can be temporarily set to Enabled, and resources will be automatically reallocated after restart, and then disabled will be restored.

Resources Controlled By: It is recommended to use Auto (ESCD) to enable BIOS automatic management. If manual allocation of IRQ/DMA is required, select Manual.

PCI/VGA Palette Snoop: If a non-standard VGA card (such as an MPEG card) experiences color abnormalities, set it to Enabled; otherwise, keep it Disabled.

7. PC Health Status (Hardware Health)

CPU Warning Temperature: A threshold can be set (such as 70 ℃), and an alarm will be triggered if it exceeds the limit.

Current System/CPU Temperature、 Real time display of fan speed and various voltages (VCORE,+3.3V,+5V,+12V, etc.).

Shutdown Temperature: Set the shutdown temperature to prevent overheating and damage.

8. Frequency/Voltage Control

Auto Detect DIMM/PCI Clk: Enable to automatically turn off idle slot clock and reduce EMI.

CPU Clock/Spread Spectrum: usually kept as default, can be manually adjusted if overclocking is required (not recommended for industrial environments).

CPU Clock Ratio: Set the multiplier to match the CPU model.

Watchdog Timer Configuration (Assembly Example)

NuPRO-775 utilizes Winbond Super I/O logic device 8 to provide programmable watchdog, which can be configured through I/O ports 2Eh/2Fh. The manual provides an example of Intel 8086 assembly code to automatically reset the system after 15 seconds. The key steps are as follows: