Aaeon HSB-800I-A11, Руководство пользователя

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Chapter 3 – AMI BIOS Setup 47
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3.10 Frequency/Voltage Control
CPU Clock Ratio [Default: Auto detect]
This option will not be shown or not be available if you are using a CPU with the locked
ratio.
This setup option will automatically assign by CPU detection.
For C-Stepping P4: 8X, 10X~24X
For Northwood CPU: 12X~24X
The option will display "Locked" and read only if the CPU ratio is not changeable.
Auto Detect PCI Clk [Default: Enabled]
This item allows you to enable/disable auto detect PCI clock.
Spread Spectrum [Default: Disabled]
When the system clock generates pulses, the extreme value of the pulse generates
excess EMI. Enabling pulse spectrum spread modulation changes the extreme pulse
spikes to flat curves thus reducing EMI. This benefit may in some cases be outweighed
by problems with timing-critical devices, such as a clock-sensitive SCSI device.
CPU Clock [Default: Auto detect]
100MHz ~ 355MHz Set CPU Host Clock from 100MHz to 355MHz.
If you use FSB400 Pentium 4 processor, "CPU Clock" should set to 100MHz.If you use
FSB533 Pentium 4 processor, "CPU Clock" should set to 133MHz. If you use FSB800
Pentium 4 Processor, "CPU Clock" should set to 200MHz.