Advantech ARK-4180, User Manual, Page: 37 / 66

29 ARK-4180 User Manual
Chapter 3
B
IOS Settings
„ Auto Detect PCI Clk [Enabled]
This item enables users to set the PCI Clk by system automatic detection or manu-
ally.
„ Spread Spectrum [Disabled]
This item enables users to set the spread spectrum modulation.
3.2.9 Load Optimized Defaults
Note! The “Frequency/Voltage Control” option controls CPU Host and PCI fre-
quency.It is CPU and Chipset independent; some items will only show
up when you install a processor which supports this function.
Note! Load Optimized Defaults loads the default system values directly from
ROM in the event that the stored record created by the Setup program
should ever become corrupted (and therefore unusable).
These defaults will load automatically when you turn the PCM-9566
series system on.