User`s guide

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6: BIOS
Processor and Clock Options
This submenu allows the user to configure the Processor and Clock settings.
Ratio CMOS Setting
This option allows the user to set the ratio between the CPU Core Clock and the FSB Frequency.
Note: If an invalid ratio is entered, the AMI BIOS will restore the setting to the previous state.
The default setting depends on the type of CPU installed on the motherboard. The default setting
for the CPU installed in your motherboard is [17]. Press "+" or "-" on your keyboard to change
this value.
C1E Support
Select Enabled to use the feature of Enhanced Halt State. C1E significantly reduces the CPU's
power consumption by reducing the CPU's clock cycle and voltage during a "Halt State." The
options are Disabled and Enabled.
Hardware Prefetcher (Available when supported by the CPU)
If set to Enabled, the hardware prefetcher will pre fetch streams of data and instructions from the
main memory to the L2 cache in the forward or backward manner to improve CPU performance.
The options are Disabled and Enabled.
Adjacent Cache Line Prefetch (Available when supported by the CPU)
The CPU fetches the cache line for 64 bytes if this option is set to Disabled. The CPU fetches both
cache lines for 128 bytes as comprised if Enabled.
MPS and ACPI MADT Ordering
Selects the method of ordering for the Multiple APIC Description Table (MADT). Select Modern
Ordering for Microsoft Windows XP or a later version of Microsoft Windows. Select Legacy
Ordering for Microsoft Windows 2000 or an earlier version of Microsoft Windows. The options
are Modern Ordering and Legacy Ordering.