Supero C7X58, Руководство пользователя

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X8SAX/C7X58 User’s Manual
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 what type of CPU
is installed. For example, the default setting for the Intel® Core i7™ 965 is
[24] .
Press "+" or "-" on your keyboard to change this value.
CPU Ratio
This option sets the CPU frequency ratio in relation to the bus clock. The options
are
Auto and Manual .
Warning: This feature is for advanced users only. We recommend to leave
this setting to Auto . When this item is set to Manual, incorrectly setting the
CPU to a frequency it does not support may lead to system instability and/
or CPU damage. Supermicro shall not be responsible for any damage to the
CPU, motherboard and other devices attached.
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 and Enabled.
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 .
Adjacent Cache Line Prefetch (Available if 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 .
Intel® Virtualization Technology (Available when supported by the CPU)
Select Enabled to use the feature of Virtualization Technology to allow one platform
to run multiple operating systems and applications in independent partitions, creat-
ing multiple "virtual" systems in one physical computer. The options are
Enabled
and Disabled. Note : If there is any change to this setting, you will need to power
off and restart the system for the change to take effect. Please refer to Intel’s web
site for detailed information.
Execute-Disable Bit Capability (Available when supported by the OS and
the CPU)
Set to Enabled to enable the Execute Disable Bit which will allow the processor
to designate areas in the system memory where an application code can execute