Owner manual
Table Of Contents
- 1 Introduction
- 2 Unpacking
- 3 Connectors
- 3.1 Peripheral Interface Connectors
- 3.2 Internal Peripheral Connectors
- 3.2.1 Audio Connector
- 3.2.2 Battery Connector
- 3.2.3 CompactFlash® Slot
- 3.2.4 Digital I/O Connector
- 3.2.5 Fan Connector (CPU)
- 3.2.6 Fan Connector (System)
- 3.2.7 Front Panel Connector
- 3.2.8 Keyboard/Mouse Connector
- 3.2.9 Backlight Inverter Connector
- 3.2.10 LVDS1 LCD Connector
- 3.2.11 Parallel Port Connector
- 3.2.12 PCI-104 Connector
- 3.2.13 PCIe Mini Card Slot
- 3.2.14 12V Power Connector
- 3.2.15 SATA Drive Connectors
- 3.2.16 SATA Power Connector
- 3.2.17 Serial Port Connectors (RS-232)
- 3.2.18 Serial Port Connector (RS-232/422/485)
- 3.2.19 SMBus Connector
- 3.2.20 SPI Flash Connector
- 3.2.21 TPM Connector
- 3.2.22 USB Connectors
- 3.3 External Peripheral Interface Connector Panel
- 4 Installation
- 4.1 Anti-static Precautions
- 4.2 Installation Considerations
- 4.3 Unpacking
- 4.4 SO-DIMM Installation
- 4.5 Jumper Settings
- 4.5.1 AT Auto Button Power Select Jumper Settings
- 4.5.2 AT/ATX Power Select Jumper Settings
- 4.5.3 Clear CMOS Jumper
- 4.5.4 COM 3 Function Select Jumper
- 4.5.5 COM 3 RS-422/485 Function Select Jumper
- 4.5.6 CompactFlash® Card Setup
- 4.5.7 CompactFlash® Voltage Selection
- 4.5.8 LVDS1 Screen Resolution Selection
- 4.5.9 LVDS Voltage Selection
- 4.5.10 PCI-104 Voltage Setup
- 4.6 Chassis Installation
- 4.7 Internal Peripheral Device Connections
- 4.8 External Peripheral Interface Connection
- 4.9 Software Installation
- 5 BIOS Screens
- A BIOS Menu Options
- B One Key Recovery
- C Terminology
- D Watchdog Timer
- E Hazardous Materials Disclosure

NANO-PV-D4251/N4551/D5251 EPIC SBC
Page 47
4.5.3 Clear CMOS Jumper
Jumper Label:
J_CMOS1
Jumper Type:
3-pin header (1x3)
Jumper Settings:
See
6Table 4-4
Jumper Location:
See
6Figure 4-4
If the NANO-PV-D4251/N4551/D5251 fails to boot due to improper BIOS settings, the
clear CMOS jumper clears the CMOS data and resets the system BIOS information. To do
this, use the jumper cap to close pins 2 and 3 for a few seconds then reinstall the jumper
clip back to pins 1 and 2.
If the “CMOS Settings Wrong” message is displayed during the boot up process, the fault
may be corrected by pressing the F1 to enter the CMOS Setup menu. Do one of the
following:
Enter the correct CMOS setting
Load Optimal Defaults
Load Failsafe Defaults.
After having done one of the above, save the changes and exit the CMOS Setup menu.
The clear CMOS jumper settings are shown in
6Table 4-4.
Clear CMOS Description
Short 1 - 2 Keep CMOS Setup Default
Short 2 - 3 Clear CMOS Setup
Table 4-4: Clear CMOS Jumper Settings










