4.3 USB and Network
USB: 4 USB 2.0 ports, supporting 480Mbps, compatible with USB 1.1.
Ethernet: Realtek RTL8111C PCIe Gigabit Controller, but interface limit is 10/100 Mbps (manual labeled "Interface 10/100 Mbps", may only be 100Mbps, actual connection capability needs to be confirmed, there may be PCB wiring limitations). In practical applications, if gigabit is required, an external expansion card is needed.
4.4 IrDA and Infrared
Supports SIR IrDA 1.1 protocol for infrared communication.

Power Management and Power Consumption
Power supply mode: Supports AT (only+5V) or ATX (+5V and+5VSB), selected through BIOS or carrier jumper.
ACPI status: Supports S0 (working), S1 (sleeping), S3 (suspended to memory), S4 (suspended to hard drive), S5 (soft shutdown). Supports Wake on LAN and USB wake-up.
Typical power consumption: Approximately 18W when equipped with U7500+1GB of memory, and up to 25W when fully equipped with L7400+2GB. Reserve space when designing heat dissipation.
Power monitoring: Hardware monitoring can read CPU temperature and main power supply voltage, obtained through SEMA (if supported) or Super I/O.
Mechanical and Environmental Specifications
Size: Standard ETX v3.02114mm × 95mm.
Working temperature: 0 ℃~60 ℃ (no wide temperature option, cannot be used for -40 ℃).
Storage temperature: -20 ℃~80 ℃.
Humidity: 5%~95% non condensing.
Anti vibration and anti impact: Non operational 1.88Grms (5-500Hz), impact 15G/11ms.
Heat dissipation accessories:
HTS-NR667-B: Heat sink with threaded support (passive).
THS-NR667-B: Low profile passive heat sink.
THSF-NR667-B: High performance active heat sink with fan.
It is recommended to choose passive or active heat dissipation based on the airflow of the chassis. If the CPU is L7400 (17W), it is strongly recommended to use active heat dissipation in a closed chassis.
Operating system and driver support
Standard support:
Windows Vista 32/64 bit
Windows XP 32/64 bit
Extended Support (BSP):
Linux 2.6.x
Windows Embedded XP
Windows CE 6.0
And provide AIDI libraries (for digital I/O, etc.) to support Win32, WinCE, and Linux.
Key points for driver installation:
The chipset driver (Intel INF) should be installed first, followed by the graphics card (GMA 950), network card, and audio (ALC268).
If using SATA AHCI, press F6 to load the floppy disk driver during XP installation, or use nLite integration.
Linux kernel 2.6.30 and above already natively support 945GME and ICH7-M, but require the activation of VNet AGP-INTEL and VNet DRMI915.
Compatibility of carrier board and precautions for replacement and upgrade
ETX-NR667 follows the ETX 3.02 specification and is pin compatible with early ETX modules such as ETX-945 and ETX-PM. If replacing an old module, please note:
Power supply: Confirm that the carrier board provides AT or ATX power supply. NR667 does not support wide range input (only 5V) and cannot be connected to 12V for direct power supply.
PCI clock: The PCI bus frequency is 33MHz. If there are multiple PCI devices on the carrier board, pay attention to load and interrupt routing.
ISA bus: No DMA. If the original system relies on ISA DMA cards (such as some sound cards or data acquisition cards), it needs to be replaced with PIO mode cards or additional bridging.
LVDS panel parameters: The LVDS data mapping for different modules may vary, and the correct panel type needs to be re selected in the BIOS, otherwise abnormal display will occur.
SATA vs PATA: If the original system only uses PATA and the new module adds SATA, PATA can be retained and SATA can be added as the data disk; But if you need to boot from SATA, the BIOS needs to set the boot sequence.
Upgrade suggestion: It is recommended to record the BIOS settings of the original module (especially display, storage, COM port) before replacement, and configure them one by one on the new module. If the original carrier board has special extensions (such as custom FPGA), PCI/ISA timing compatibility needs to be verified.
Common faults and troubleshooting ideas
Fault 1: No display when powered on, fan turning
Check if the memory is properly plugged in, try replacing the slot or memory module (only one slot).
Clear CMOS: Use SW2 (similar to ETX-BT if present) or unplug the battery.
Verify if the CPU is overheating protected and check if the heat sink is installed smoothly.
Fault 2: LVDS backlight not working
Check if the carrier board provides backlight power (+5V or+12V), as the module itself does not output backlight voltage.
Measure whether the DIGON (display power) and BLON (backlight enable) signals are at high level. If they are low, check if the LCD panel settings in BIOS are enabled.
Fault 3: IDE device cannot recognize
Confirm that the device jumper is Master (only supports Master).
Check if the IDE cable is 40 cores (does not support 80 core UDMA66 cable as only UDMA33 is supported).
If using CF card to IDE, some CF cards need to be set to Master mode.
Fault 4: System Blue Screen (0x7B) on Windows XP
Since the SATA mode is set to AHCI but the driver is not loaded, it can be temporarily started in IDE mode (with SATA Mode set to IDE in BIOS) and then injected with AHCI driver.