Themis RES-22XR3, Installation Manual

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3-7
Themis Computer
3—BIOS Setup Utility
Advanced Setup Configurations
3.3.1.10 Restore on AC Power Loss
Use this feature to set the power state after a power outage. Select Power-Off for the
power to remain off after a power loss. Select Power-On for the power to be turned
on after a power loss. Select Last State to allow the system to resume its last state
before a power loss. The options are Power-On, Power-Off and
Last State (default).
3.3.2 Processor and Clock Options
This submenu allows the user to configure the Processor and Clock settings.
3.3.2.1 CPU Ratio
If set to Manual, this option allows the user to set the ratio between the CPU Core
Clock and the FSB Frequency. The options are
Auto (default) and Manual.
3.3.2.2 Clock Spread Spectrum
Select Enable to use the feature of Clock Spectrum, which will allow the BIOS to
monitor and attempt to reduce the level of Electromagnetic Interference caused by
the components whenever needed. The options are
Disabled (default) and Enabled.
3.3.2.3 Hardware Prefetcher (Available when supported by the CPU)
If set to Enabled, the hardware prefetcher will prefetch streams of data and instruc-
tions from the main memory to the L2 cache in the forward or backward manner to
improve CPU performance. The options are Disabled and
Enabled (default).
3.3.2.4 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 (default).
Note: If an invalid ratio is entered, the AMI BIOS will restore the setting to the
previous state.