Ampro Corporation Single Board Computer Littleboard 550 - Manual (Page 78)

Chapter 4 BIOS Setup
72 Reference Manual LittleBoard 550
However, connecting a Hot Cable to the other port (port not selected) overrides this field
setting and activates the connected port. Connecting a Hot Cable to one of the serial ports
only allows console redirection when a Hot Cable is actually connected to Serial 1 or 2.
Use the modified serial cable described in Chapter 3, under Hot (Serial) Cable.
♦ USB Boot Support – [Disabled] or [Enabled]
This field allows you to select any USB device as a boot device. Refer also to Drive
Assignment settings, Boot Order settings, and USB (device enable) under On-Board
Controllers for the USB Drive settings and the number of USB ports enabled, respectively.
• If this field is set to [Disabled], none of the USB devices connected to the LittleBoard 550
can be used as a boot device.
• If this field is set to [Enabled], any of the bootable USB devices connected to the
LittleBoard 550 can be used as a boot device.
NOTE Ampro does not recommend connecting a USB boot device to the
LittleBoard 550 through an external hub. Instead, connect the USB
boot device directly to the LittleBoard 550.
♦ LAN Boot – [None], [LAN 1], or [LAN 2]
This field allows you to boot the system over one of the Ethernet connections (LAN). Refer
to the topics, LAN Boot and PXE Agent BIOS Settings, in Appendix C, LAN Boot Option
for more information.
NOTE LAN Boot is an option and only appears in the BIOS Setup Utility if
you have had a BIOS update installed by Ampro, to make use of the
LAN Boot option.
• If this field is set to [LAN 1], the LittleBoard 550 will boot from Ethernet 1 (J7). If you
enable LAN Boot for [LAN 1], you will need to saves changes, reboot the system, and go
to the PXE Agent BIOS settings. Refer to Appendix C, for more information.
• If this field is set to [LAN 2], the LittleBoard 550 will boot from Ethernet 2 (J32). If you
enable LAN Boot for [LAN 2], you will need to saves changes, reboot the system, and go
to the PXE agent BIOS settings. Refer to Appendix C, for more information.
• On-Board Serial Ports
NOTE Serial Ports 1 and 2 can not share the same IRQs, and the IRQs used
for Serial Ports 1 and 2 can not be used for Serial Ports 3 and 4 and
vice versa.
♦ Serial 1 – [Disabled], [3F8h], [2F8h], [3E8h], [2E8h], [260h], [2F0h], [3E0h], [2E0h],
[200h], or [220h]
This field specifies the base address used for Serial Port 1.