Advantech IPPC-6172A Series, User Manual

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47 IPPC-6172A User Manual
Chapter 5
A
MI BIOS
Setup
Spread Spectrum Clock
This setting allows you to reduce EMI by modulating the signals the CPU generates
so that the spikes are reduced to flatter curves. This is achieved by varying the fre-
quency slightly so that the signal does not use any particular frequency for more than
a moment. The options: Disabled and Enabled.
5.7.2 South Bridge Configuration
You can use this screen to select options for the South Bridge Configuration. South
Bridge is a chipset on the motherboard that controls the basic I/O functions, USB
ports, audio functions, modem functions, IDE channels, and PCI slots. Use the up
and down <Arrow> keys to select an item. Use the <Plus> and <Minus> keys to
change the value of the selected option.
USB Functions
Set this value to allow the system to enable or disable the onboard USB ports. The
choices are Disabled, 2 USB Ports, 4 USB Ports, 6 USB Ports, 8 USB Ports, 10 USB
Ports and 12 USB Ports.
GbE Controller
This item allows you to set whether to enable onboard LAN controller. The default
setting is Enabled which you can not change.
GbE LAN Boot
When [Enabled], the BIOS attempts to boot from a LAN boot image before it
attempts to boot from a local storage device.
GbE Wake up From S5
This field specifies whether the system will be awakened from the S5 power saving
mode when activity or input signal of onboard LAN is detected.