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3 Tests and Diagnostics 3.29 SETUP
8. Others
Whether or not you need to configure the computer with these options depends
primarily on the kind of software or peripherals you use.
(a) CPU Cache
Use this option to enable or disable the CPU cache.
Enabled Enables the CPU cache. (Default)
Disabled Disables the CPU cache.
When enabled is selected, a subwindow similar to the one below is displayed
to select the cache write policy. The options for this setting are Write-back
(default) and Write-through for CPU cache.
Write policy = Write-back
OPTION
Write-back policy provides better system performance, because main memory
is accessed only when necessary to update the cache contents with changes in
main memory. Write-through policy accesses main memory every time data is
handled by the processor.
(b) Level 2 Cache
Use this option to enable or disable the level 2 cache. When "CPU Cache" is
set to "Disabled", this option is not displayed.
Enabled Enables the level 2 cache. (Default)
Disabled Disables the level 2 cache.
(c) Dynamic CPU Frequency mode
Use this option to choose a setting from the followings.
Dynamically Switchable
Enables Intel SpeedStep technology. When the computer is
in use, the CPU power consumption and clock speed are
automatically switched when necessary. (Default)
Always High Disables Intel SpeedStep technology and always runs the
processor at its fastest speed.
Always Low Disables Intel SpeedStep technology and always runs the
processor at low power consumption and low speed.
3-86 TECRA M2 Maintenance Manual (960-468)