Frequency/Voltage Control - Shuttle AB49 User Manual

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Frequency/Voltage Control

CPU Clock Ratio
This item allows you to adjust CPU Ratio. The item becomes unavail-
able if your CPU clock ratio is locked.
CPU Core Voltage
This item defines the CPU core voltage.
Ø The choice: Vcore Auto, Vcore 1.5%, Vcore 3.0%, or Vcore 4.5%.
Auto Detect DIMM/PCI CLK
When this item is enabled, BIOS will disable the clock signal of free
DIMM and PCI slots.
Ø The choice: Enabled or Disabled.
Spread Spectrum
This item defines the spread spectrum modulation.
Ø The choice: Enabled or Disabled.
CPU Clock
This item allows the user to adjust CPU Host Clock (usually 133 MHz,
100 MHz, or 66 MHz).
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